433.03 Rubblizing Portland Cement Concrete Pavement
H.Clean Up Remove deposits of grout on the pavement or shoulder. Clean the pavement surface before allowing traffic on the completed sections. Remove other debris, bags, and spillage from the right -of-way each day.
I.Opening to Traffic Restri ct traffic from the grouted areas for 3 calendar days, or as directed by the Resident Engineer.
426.05 Method of Measuremen T
The Resident Engineer will not include the weight of water or sand in the measurements of Portland Cement or Fly Ash .
426.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit:
A.CORED HOLES Each
B.PORTLAND CEMENT Ton [Metric Ton]
C.FLY ASH Ton [Metric Ton] Include the cost of water and sand to be included in the contract unit price for Portland Cement or Fly Ash.
433.01 Description
This work consists of rubblizing and seating existing portland cement concrete pavement (PCCP).
433.02 Materials — Vacant
433.03 Equipment
A.Pavement Breaker Use a self -contained, self -propelled, resonant frequency pavement rubblizing unit capable of fracturin g the pavement. Ensure the unit produces low amplitude blows of 2,000 lb [9 kN] at a rate of at least 44 cycles per second. Equip the unit with a water mist system to suppress dust. Provide a screen to protect vehicles in adjacent lanes from flying chip s, as approved by the Resident Engineer. RUBBLIZING PORTLAND CEMENT CONCRETE PAVEMENT 433.04
B.Roller Use a vibratory, steel wheel roller weighing at least 10 ton [9 metric ton] to compact the rubblized pavement. Provide a self -propelled unit capable of varying the vibration amplitude and frequency.
433.04 Construction Methods
A.General Remove asphalt pavement overlay to the PCCP. Rubblize and seat PCCP across the panel width and to the full depth of the pavement. Where rubblizing abuts PCCP specified to remain on ramps or mainline, cut joints or lo ad transfer devices at an existing joint. Ensure the overlay is complete before opening the pavement to traffic except at restricted crossovers and ramp crossings . Protect underground utilities and drainage facilities while operating the resonant breaker. Do not exceed a maximum amplitude of 1 in [25 mm]. Remove asphalt pavement patches with a surface area of at least 1 yd² [0.84 m²] and replace with traffic -bound surface course Type E in accordance with Subsection 703.0 5, “Aggregates for Traffic Bound Surface Course,” materials shown on the Plans, or both.
B.Rubblizing of Portland Cement Concrete Pavement Ensure no more than 20 percent of the material is larger than 6 in [150 mm], and individual fragments do not exceed 8 in [200 mm] in breaking the existing PCCP. The Resident Engineer will determine the extent of the breakage based on a visual inspection of the cracks on a dry pavement surface. The Resident Engineer will not allow the use of water to detect additional cracks. 433.04 Begin rubblizing at the edge of pavement and work toward the centerline of the roadway. If overlaying one lane at a time, extend rubblizing of each lane at least 6 in [150 mm] beyond the width of the lane. Remove pavement that cannot be rubb lized, subexcavate the base material to 2 ft [600 mm], and replace the base material with compacted Aggregate Base Type A in accordance with Section 303, “Aggregate Base.” Debond steel reinforcement from the pavement, and leave it in place. Cut exposed steel below the surface. Adjust the striking pattern, striking energy, number of passes, or other factors to achieve acceptable fracturing.
C.Test Section Before rubblizing operations begin, the Resident Engineer will designate a test section. Rubblize the test section using a variety of energy and striking patterns, and repeat passes until the test section is fractured in accordance with Subsection 433.04.B, “Rubblizing of Portland Cement Concrete Pavement.” Use the test section breakage results as a guide for breaking the pavement on the remainder of the project. If the rubblized fragments exceed the size requirements during the rubblizing operation, the Resident Engineer may direct addi tional test sections.
440.01 Asphalt Safety Edge
D.Seating of Rubblized Portland Cement Concrete Pavement Seat the broken concrete after rubblizing with at least three passes of a steel -wheel roller in the vibratory mode at a maximum speed of 4 mph [6 km/h], as approved by the Resi dent Engineer.
E.Leveling Course Place a hot mix asphalt leveling or base course as shown on the Plans, immediately following the pavement rubblizing and seating operations.
433.05 Method of Measuremen T
The Resident Engineer will measure Rubblizing Paveme nt by the width of the existing PCCP and the horizontal length along the centerline of each roadway or ramp.
433.06 Basis of Payment
The Department will pay for each pay item at the contract unit price per the specified pay unit as follows: Pay Item: Pay Unit: RUBBLIZING PAVEMENT Square Yard [Square Meter] The Department will pay for asphalt pavement patch removal and replacement with a traffic -bound surface course Type E in accordance with Section 402, "Traffic -Bound Surface C ourse." If the pavement cannot be rubblized, the Department will pay for removal of pavement and replacement with Aggregate Base Type A in accordance with Section 303, "Aggregate Base Type A.” SECTION 440 ASPHALT SAFETY EDGE
440.01 Description
The asphalt safety edge is a beveled pavement edge to help lessen the severity of roadway departures. When a driver drifts off the paved surface, the safety edge provides gr eater ease for re -entering the roadway, and reduces the risk of over steering and loss of control of the vehicle. Safety edge is required on asphalt concrete highway construction (permanent or temporary), on all routes, for all design speeds and types of t raffic, when the following conditions exists: the roadway is an open section (no curb), the increase in pavement thickness is 2" or greater, and the paved shoulder width is 4 feet or less. With the Engineer’s approval, the safety edge may be constructed w hen the paved shoulder width is greater than 4 feet.
Source: Oklahoma Standard Specifications for Highway Construction, 2019 Edition. Pages 302–303 of 935.