734Description

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

Rubblizing Portland Cement Concrete Pavement

734.01 DESCRIPTION. Rubblize existing reinforced or non-reinforced

portland cement concrete pavement using a pavement -fracturing machine capable of delivering sufficient energy to rubblize the pavement full-depth in a manner that fractures the concrete slab into smaller pieces that eliminates slab action without damaging the subgrade. Thoroughly compact and seat the rubblized pavement with appropriate equipment as outlined in this specification. Either the resonant frequency breaker (Method 1) or the multihead breaker (Method 2) process may be utilized to rubblize and seat the pavement. Use only one of the methods (Method 1 or Method 2) on the project. When using Method 2 on concrete pavements with thickness greater than 11 inches, the contractor may use a guillotine -breaking device with the engineer’s approval, if pre -fracturing of the pavement is necessary to achieve rubblization size requirements with out damage to the subgrade. Perform t he work in accordance with the lines, grades, and typical sections shown on the plans and as outlined in this specification.

734.02 Equipment.

734.02.1 Method 1 (Resonant Frequency Breaker Process):

734.02.1 1 Resonant Frequency Breaker Machine : Use a

self-contained, self -propelled, resonant frequency breaker for rubblizing existing pavement that is capable of producing 2000 pound force blows at a rate of not less than 44 cycles per second with an amplitude of less than 1 inch.

734.02.1 2 Resonant Freque ncy Breaker Seating

Equipment:

734.02.1 2.1 Steel -Wheel Vibratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.1 2.2 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.02.2 Method 2 (Multihead Breaker Process):

734.02.2 1 Multihead Breaker Machine: Use a multihead

breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade breaker that is a rubber -tired, self -propelled unit, which uses 12 to 16 hammers with weights ranging from 1,200 to 2,000 pounds mounted laterally in pairs with half the hammers in a forward row and the remainder diagonally offset in a rear row so that there is continuous breakage from side to side. Each hammer shall have one continuous strike bar whose width varies from 1 to 2 inches. Each pair of ham mers is attached to a hydraulic lift cylinder, which operates as an independent unit, and cycles at a rate of 30 to 35 impacts per minute. It shall be capable of rubblizing up to 13 feet in width of pavement in one pass.

734.02.2 2 Multihead Breaker Seating Equipment :

734.02.2 2.1 Z-Grid Roller: Use a modified vibratory steel -

wheel roller with a "Z" grid pattern on the drum face. The roller shall have a gross weight of at least 10 tons, and operate in the vibratory mode, to settle and seat the rubblized pavement.

734.02.2 2.2 Steel -Wheel Vi bratory Roller: Use a steel-

wheel vibratory roller having a gross weight of not less than 10 tons, operated in the vibrating mode, to compact the rubblized pavement.

734.02.2 2.3 Pneumatic -Tired Roller: Use a pneumatic -

tired roller as specified in 503.16.3 to compact the rubblized pavement.

734.03 Construction Require Ments.

734.03.1 Preparation Prior to Rubblization:

734.03.1 1 Drainage System Installation: Prior to

rubblization operations, install drainage systems as shown on the plans. Ensure that drainage systems are properly functioning for a minimum of two weeks prior to rubblization.

734.03.1 2 Removal of Existing Asphalt Surfaces: Remove

existing asphalt concrete overlays and patches from the PCC pavement surfaces prior to rubblization. Existing full -depth asphalt patches shall remain in place, unless directed for removal and replacement b y the engineer.

734.03.1 3 Saw-Cut Joints: Make new full -depth saw -cuts

along existing joints on all pavement edges where rubblized PCC is adjacent to pavement that will remain in place. Sever all load transfer devices between the planned rubblization and PCC pav ement remaining in place.

734.03.1 4 Shouldering: Complete shoulder adjustments and/or

any pavement widening up to the elevation of the existing pavement grade prior to beginning the rubblization operations. These areas can be used to support the rubblization mac hines while the existing PCC pavement is being rubblized.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.2 Test Strip and Test Pit to Establish Procedure:

734.03.2 1 Test Strip: Before the rubblization process begins,

the engineer will designate a test section of at least 150 feet by 12 feet. Rubblize the test section using varying degrees of energy and/or various striking heights until a procedure is established that will rubbli ze the pavement as outlined herein. On projects that have a transition to a bridge or to an overpass, make the test pit in the transition where the material will be totally removed.

734.03.2 2 Test Pit: In the middle of the test strip, excavate a 4 -

foot square te st pit at a location selected by the engineer, to determine that the breaker is producing rubblized pieces of the specified sizes as outlined in these specifications. Check the rubblized particle sizes throughout the entire depth of the pavement. Remove th e test pit material from the project and fill the hole using coarse aggregate material as specified in 1003.03 . Place and properly compact the replacement material to the satisfaction of the engineer. The engineer and the contractor shall mutually agree upon the rubblization procedure based on the performance criteria contained herein. Use the established procedure to rubblize the remainder of the pavement. Continuo usly monitor the rubblization operation, and make minor adjustments in the striking pattern, striking energy, number of passes, and other factors necessary to continually achieve acceptable rubblization throughout the project. Inform the engineer of any ma jor adjustments that may be required in the process to provide rubblized pavement that conforms to the specification requirements. Additional test pits may be required by the engineer to confirm that the PCC pavement is adequately rubblized.

734.03.3 Rubblization Criteria:

734.03.3 1 Method 1 (Resonant Frequency Breaker):

Compact the complete width of the rubblized pavement surface with the vibratory steel -wheel roller and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more pas ses are necessary.

734.03.3 2 Method 2 (Multihead Breaker): Compact the

complete width of the rubblized pavement surface with the vibratory Z-grid roller, vibratory steel-wheel roller, and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more passes are necessary .

734.03.4 Reinforced Portland Cement Concrete P avement:

Debond the reinforcing steel from the concrete and leave in place. If any steel is protruding from the surface, cut the steel below the surface and remove.

734.03.5 General Rubblization Procedures: Rubblize in partial

widths when necessary to maintai n traffic as shown in the contract documents. When the rubblization process is adjacent to in -service pavement, take measures to prevent debris from entering the in -service pavement. In areas where the pavement is to be overlayed prior to completion of the rubblization, extend the initial rubblization a minimum of 6 inches beyond the width of the pavement to be overlayed. For the resonant frequency breaker process, begin rubblizing at a free edge or previously broken edge and progress toward the opposite sh oulder or longitudinal centerline of the pavement. Continuous coverage of the entire A pass shall be defined as forward and backward in the same path. Operate the roller at a speed not to exceed 4.5 feet per second. Break the existing concrete pavement into pieces ranging from sand size to 6 inches, with no more than approximately 10 percent of the material larger than 6 inches and no individual pieces larger than 8 inches in any dimension . The majority of rubblized concrete material shall be pieces ranging from 1 to 3 inches in size in any dimension .

734.03.3 2 Method 2 (Multihead Breaker): Compact the

complete width of the rubblized pavement surface with the vibratory Z-grid roller, vibratory steel-wheel roller, and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more passes are necessary .

734.03.4 Reinforced Portland Cement Concrete P avement:

Debond the reinforcing steel from the concrete and leave in place. If any steel is protruding from the surface, cut the steel below the surface and remove.

734.03.5 General Rubblization Procedures: Rubblize in partial

widths when necessary to maintai n traffic as shown in the contract documents. When the rubblization process is adjacent to in -service pavement, take measures to prevent debris from entering the in -service pavement. In areas where the pavement is to be overlayed prior to completion of the rubblization, extend the initial rubblization a minimum of 6 inches beyond the width of the pavement to be overlayed. For the resonant frequency breaker process, begin rubblizing at a free edge or previously broken edge and progress toward the opposite sh oulder or longitudinal centerline of the pavement. Continuous coverage of the entire A pass shall be defined as forward and backward in the same path. Operate the roller at a speed not to exceed 4.5 feet per second. Break the existing concrete pavement into pieces ranging from sand size to 6 inches, with no more than approximately 10 percent of the material larger than 6 inches and no individual pieces larger than 8 inches in any dimension . The majority of rubblized concrete material shall be pieces ranging from 1 to 3 inches in size in any dimension .

734.03.3 2 Method 2 (Multihead Breaker): Compact the

complete width of the rubblized pavement surface with the vibratory Z-grid roller, vibratory steel-wheel roller, and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more passes are necessary .

734.03.4 Reinforced Portland Cement Concrete P avement:

Debond the reinforcing steel from the concrete and leave in place. If any steel is protruding from the surface, cut the steel below the surface and remove.

734.03.5 General Rubblization Procedures: Rubblize in partial

widths when necessary to maintai n traffic as shown in the contract documents. When the rubblization process is adjacent to in -service pavement, take measures to prevent debris from entering the in -service pavement. In areas where the pavement is to be overlayed prior to completion of the rubblization, extend the initial rubblization a minimum of 6 inches beyond the width of the pavement to be overlayed. For the resonant frequency breaker process, begin rubblizing at a free edge or previously broken edge and progress toward the opposite sh oulder or longitudinal centerline of the pavement. Continuous coverage of the entire A pass shall be defined as forward and backward in the same path. Operate the roller at a speed not to exceed 4.5 feet per second. Break the existing concrete pavement into pieces ranging from sand size to 6 inches, with no more than approximately 10 percent of the material larger than 6 inches and no individual pieces larger than 8 inches in any dimension . The majority of rubblized concrete material shall be pieces ranging from 1 to 3 inches in size in any dimension .

734.03.3 2 Method 2 (Multihead Breaker): Compact the

complete width of the rubblized pavement surface with the vibratory Z-grid roller, vibratory steel-wheel roller, and pneumatic -tired roller in the following sequence as a minimum. The engineer will determine if more passes are necessary .

734.03.4 Reinforced Portland Cement Concrete P avement:

Debond the reinforcing steel from the concrete and leave in place. If any steel is protruding from the surface, cut the steel below the surface and remove.

734.03.5 General Rubblization Procedures: Rubblize in partial

widths when necessary to maintai n traffic as shown in the contract documents. When the rubblization process is adjacent to in -service pavement, take measures to prevent debris from entering the in -service pavement. In areas where the pavement is to be overlayed prior to completion of the rubblization, extend the initial rubblization a minimum of 6 inches beyond the width of the pavement to be overlayed. For the resonant frequency breaker process, begin rubblizing at a free edge or previously broken edge and progress toward the opposite sh oulder or longitudinal centerline of the pavement. Continuous coverage of the entire pavement surface, overlapped if necessary to achieve adequate rubblization with the breaking shoe, will be required. Additional passes of either rubblization device may b e required to meet the particle sizes outlined in this specification as directed by the engineer.

734.03.6 Dust Control: Minimize the dispersion of dust from the

rubblization operation until the rubblized surface is overlayed with asphalt concrete. Provide a wat er truck, operator, and all water necessary for dust - control purposes. Do not apply excessive water to the rubblized surface. Dust control is incidental to the rubblization process and will not be paid for separately. Dust -mitigation measures must be accep table to the engineer.

734.03.7 Damage to Base, Underlying Structures, and Other

Facilities: Operate the rubblization machine and rollers in a manner that will avoid damaging the base, underlying structures, utilities, drainage facilities, bridge approach slabs , bridge decks, and other facilities on the project. If any damage occurs, immediately cease operations, notify the engineer, and repair the damage as directed. Make repairs in a timely manner at the contractor’s expense.

734.03.8 Unstable Area Patching: If uns table areas occur because

of expansion of the existing concrete pavement, remove the unstable areas to a maximum length of 4 feet by 12 feet in width and replace with full - depth asphalt concrete patching in accordance with Section 510 as directed. Patching procedures shall conform to the standard specifications, and shall be completed prior to placing the asphalt concrete overlay. Patch areas of poor subgrade suppo rt that are identified during the rubblization and seating process as directed. Remove the rubblized pavement, base course, and subgrade material from unstable areas. Replace the material with full depth asphalt concrete patches in accordance with Section 510 as directed.

734.03.9 Progress of the Work: Unless otherwise specified, no

more than 48 hours shall elapse between rubblizing the pavement and the placement of the asphalt concrete overlay. A minimum of 4 inches of asphalt concrete is required before traffic is allowed on the on the rubblized pavement. If rain occurs between these operations, this time limitation may be waived to allow sufficient time for the rubbli zed pavement to dry to the satisfaction of the engineer. pavement surface, overlapped if necessary to achieve adequate rubblization with the breaking shoe, will be required. Additional passes of either rubblization device may b e required to meet the particle sizes outlined in this specification as directed by the engineer.

734.03.6 Dust Control: Minimize the dispersion of dust from the

rubblization operation until the rubblized surface is overlayed with asphalt concrete. Provide a wat er truck, operator, and all water necessary for dust - control purposes. Do not apply excessive water to the rubblized surface. Dust control is incidental to the rubblization process and will not be paid for separately. Dust -mitigation measures must be accep table to the engineer.

734.03.7 Damage to Base, Underlying Structures, and Other

Facilities: Operate the rubblization machine and rollers in a manner that will avoid damaging the base, underlying structures, utilities, drainage facilities, bridge approach slabs , bridge decks, and other facilities on the project. If any damage occurs, immediately cease operations, notify the engineer, and repair the damage as directed. Make repairs in a timely manner at the contractor’s expense.

734.03.8 Unstable Area Patching: If uns table areas occur because

of expansion of the existing concrete pavement, remove the unstable areas to a maximum length of 4 feet by 12 feet in width and replace with full - depth asphalt concrete patching in accordance with Section 510 as directed. Patching procedures shall conform to the standard specifications, and shall be completed prior to placing the asphalt concrete overlay. Patch areas of poor subgrade suppo rt that are identified during the rubblization and seating process as directed. Remove the rubblized pavement, base course, and subgrade material from unstable areas. Replace the material with full depth asphalt concrete patches in accordance with Section 510 as directed.

734.03.9 Progress of the Work: Unless otherwise specified, no

more than 48 hours shall elapse between rubblizing the pavement and the placement of the asphalt concrete overlay. A minimum of 4 inches of asphalt concrete is required before traffic is allowed on the on the rubblized pavement. If rain occurs between these operations, this time limitation may be waived to allow sufficient time for the rubbli zed pavement to dry to the satisfaction of the engineer. pavement surface, overlapped if necessary to achieve adequate rubblization with the breaking shoe, will be required. Additional passes of either rubblization device may b e required to meet the particle sizes outlined in this specification as directed by the engineer.

734.03.6 Dust Control: Minimize the dispersion of dust from the

rubblization operation until the rubblized surface is overlayed with asphalt concrete. Provide a wat er truck, operator, and all water necessary for dust - control purposes. Do not apply excessive water to the rubblized surface. Dust control is incidental to the rubblization process and will not be paid for separately. Dust -mitigation measures must be accep table to the engineer.

734.03.7 Damage to Base, Underlying Structures, and Other

Facilities: Operate the rubblization machine and rollers in a manner that will avoid damaging the base, underlying structures, utilities, drainage facilities, bridge approach slabs , bridge decks, and other facilities on the project. If any damage occurs, immediately cease operations, notify the engineer, and repair the damage as directed. Make repairs in a timely manner at the contractor’s expense.

734.03.8 Unstable Area Patching: If uns table areas occur because

of expansion of the existing concrete pavement, remove the unstable areas to a maximum length of 4 feet by 12 feet in width and replace with full - depth asphalt concrete patching in accordance with Section 510 as directed. Patching procedures shall conform to the standard specifications, and shall be completed prior to placing the asphalt concrete overlay. Patch areas of poor subgrade suppo rt that are identified during the rubblization and seating process as directed. Remove the rubblized pavement, base course, and subgrade material from unstable areas. Replace the material with full depth asphalt concrete patches in accordance with Section 510 as directed.

734.03.9 Progress of the Work: Unless otherwise specified, no

more than 48 hours shall elapse between rubblizing the pavement and the placement of the asphalt concrete overlay. A minimum of 4 inches of asphalt concrete is required before traffic is allowed on the on the rubblized pavement. If rain occurs between these operations, this time limitation may be waived to allow sufficient time for the rubbli zed pavement to dry to the satisfaction of the engineer. pavement surface, overlapped if necessary to achieve adequate rubblization with the breaking shoe, will be required. Additional passes of either rubblization device may b e required to meet the particle sizes outlined in this specification as directed by the engineer.

734.03.6 Dust Control: Minimize the dispersion of dust from the

rubblization operation until the rubblized surface is overlayed with asphalt concrete. Provide a wat er truck, operator, and all water necessary for dust - control purposes. Do not apply excessive water to the rubblized surface. Dust control is incidental to the rubblization process and will not be paid for separately. Dust -mitigation measures must be accep table to the engineer.

734.03.7 Damage to Base, Underlying Structures, and Other

Facilities: Operate the rubblization machine and rollers in a manner that will avoid damaging the base, underlying structures, utilities, drainage facilities, bridge approach slabs , bridge decks, and other facilities on the project. If any damage occurs, immediately cease operations, notify the engineer, and repair the damage as directed. Make repairs in a timely manner at the contractor’s expense.

734.03.8 Unstable Area Patching: If uns table areas occur because

of expansion of the existing concrete pavement, remove the unstable areas to a maximum length of 4 feet by 12 feet in width and replace with full - depth asphalt concrete patching in accordance with Section 510 as directed. Patching procedures shall conform to the standard specifications, and shall be completed prior to placing the asphalt concrete overlay. Patch areas of poor subgrade suppo rt that are identified during the rubblization and seating process as directed. Remove the rubblized pavement, base course, and subgrade material from unstable areas. Replace the material with full depth asphalt concrete patches in accordance with Section 510 as directed.

734.03.9 Progress of the Work: Unless otherwise specified, no

more than 48 hours shall elapse between rubblizing the pavement and the placement of the asphalt concrete overlay. A minimum of 4 inches of asphalt concrete is required before traffic is allowed on the on the rubblized pavement. If rain occurs between these operations, this time limitation may be waived to allow sufficient time for the rubbli zed pavement to dry to the satisfaction of the engineer. pavement surface, overlapped if necessary to achieve adequate rubblization with the breaking shoe, will be required. Additional passes of either rubblization device may b e required to meet the particle sizes outlined in this specification as directed by the engineer.

734.03.6 Dust Control: Minimize the dispersion of dust from the

rubblization operation until the rubblized surface is overlayed with asphalt concrete. Provide a wat er truck, operator, and all water necessary for dust - control purposes. Do not apply excessive water to the rubblized surface. Dust control is incidental to the rubblization process and will not be paid for separately. Dust -mitigation measures must be accep table to the engineer.

734.03.7 Damage to Base, Underlying Structures, and Other

Facilities: Operate the rubblization machine and rollers in a manner that will avoid damaging the base, underlying structures, utilities, drainage facilities, bridge approach slabs , bridge decks, and other facilities on the project. If any damage occurs, immediately cease operations, notify the engineer, and repair the damage as directed. Make repairs in a timely manner at the contractor’s expense.

734.03.8 Unstable Area Patching: If uns table areas occur because

of expansion of the existing concrete pavement, remove the unstable areas to a maximum length of 4 feet by 12 feet in width and replace with full - depth asphalt concrete patching in accordance with Section 510 as directed. Patching procedures shall conform to the standard specifications, and shall be completed prior to placing the asphalt concrete overlay. Patch areas of poor subgrade suppo rt that are identified during the rubblization and seating process as directed. Remove the rubblized pavement, base course, and subgrade material from unstable areas. Replace the material with full depth asphalt concrete patches in accordance with Section 510 as directed.

734.03.9 Progress of the Work: Unless otherwise specified, no

more than 48 hours shall elapse between rubblizing the pavement and the placement of the asphalt concrete overlay. A minimum of 4 inches of asphalt concrete is required before traffic is allowed on the on the rubblized pavement. If rain occurs between these operations, this time limitation may be waived to allow sufficient time for the rubbli zed pavement to dry to the satisfaction of the engineer. Except at restricted crossover and ramp crossings, do not allow traffic on the rubblized pavement before the initial asphalt concrete base and leveling courses, if required, are in place. Immediate ly remove rubblized material dislodged by construction traffic from the roadway in front of the paver.

734.04 MEASUREMENT. Rubblizing portland cement concrete

pavement will be measured by the square yard. The width will be the nominal width of the existing pavem ent, and the length will be measured along the centerline of each roadway or ramp.

734.05 PAYMENT. Payment for rubblizing portland cement concrete

pavement will be made at the contract unit price per square yard, which includes furnishing all materials, labor, equipment, and incidentals necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 734-01 Rubblizing Portland Cement Concrete Pavement (Resonant Frequency Breaker) Square Yard 734-02 Rubblizing Portland Cement Concrete Pavement (Multihead Breaker) Square Yard Except at restricted crossover and ramp crossings, do not allow traffic on the rubblized pavement before the initial asphalt concrete base and leveling courses, if required, are in place. Immediate ly remove rubblized material dislodged by construction traffic from the roadway in front of the paver.

734.04 MEASUREMENT. Rubblizing portland cement concrete

pavement will be measured by the square yard. The width will be the nominal width of the existing pavem ent, and the length will be measured along the centerline of each roadway or ramp.

734.05 PAYMENT. Payment for rubblizing portland cement concrete

pavement will be made at the contract unit price per square yard, which includes furnishing all materials, labor, equipment, and incidentals necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 734-01 Rubblizing Portland Cement Concrete Pavement (Resonant Frequency Breaker) Square Yard 734-02 Rubblizing Portland Cement Concrete Pavement (Multihead Breaker) Square Yard Except at restricted crossover and ramp crossings, do not allow traffic on the rubblized pavement before the initial asphalt concrete base and leveling courses, if required, are in place. Immediate ly remove rubblized material dislodged by construction traffic from the roadway in front of the paver.

734.04 MEASUREMENT. Rubblizing portland cement concrete

pavement will be measured by the square yard. The width will be the nominal width of the existing pavem ent, and the length will be measured along the centerline of each roadway or ramp.

734.05 PAYMENT. Payment for rubblizing portland cement concrete

pavement will be made at the contract unit price per square yard, which includes furnishing all materials, labor, equipment, and incidentals necessary to complete the work. Payment will be made under: Item No. Pay Item Pay Unit 734-01 Rubblizing Portland Cement Concrete Pavement (Resonant Frequency Breaker) Square Yard 734-02 Rubblizing Portland Cement Concrete Pavement (Multihead Breaker) Square Yard Section 735 Mailboxes and Mailbox Supports

735.01 DESCRIPTION. Remove and replace mailboxes, newspaper

delivery tubes, and mailbox supports in accordance with these specifications, the plans, and as directed. Mailboxes are privately owned, although placed on public right -of-way. Coordinate with the mailbox owner and the United States Postal Service (USPS) to ensure that the owner receives mail deliveries. Using a form furnished by the Department a minimum of 10 calendar days before renewal, n otify the property owners that the mailbox and supports will be removed for construction and will be replaced using approved materials in accordance with these specifications. Also notify the property owners that salvageable mater ial will be placed on the owner’s property for the owner’ s disposal if the owner so desires. Provide the engineer with documentation assuring that all property owners have been notified in accordance with these specifications.

735.02 MATERIALS. Fabricate mailboxes with light sheet metal or

plastic complying with the requirements of the USPS. Provide the same size replacement mailbox as the existing mailbox. Newspaper tubes shall be furnished by the property owner. Names and numbers on mailboxes will be the responsibility of the property owner. Provide galvanized metal posts for mailbox supports with a strength no greater than a 2-inch diameter standard -strength steel pipe or 2 pound per foot flanged channels. Include an anti-twist device for the mailbox supports.

735.03 CONSTRUCTION REQUIRE MENTS. Install mailbox

supports a maximum of 24 inches in the ground. Do not set supports in concrete. Provide support -to-box attachments sufficient to prevent the box from separating from the support if the support is struck by an automobile or light truck. Mount newspaper tubes below the mailbox on the side of the mailbox support. Dispose of materials in accordance with 202.02 at no direct pay. Sampling and testing of materials will not be required.