Crack and Joint Sealing Portland Cement Concrete Pavement Art. 452.03 Existing raised reflective pavement markers shall be protected during the crack sealing operations. Tracking of sealant material will not be allowed. If sealant materials are applied to the markers, such material shall be removed. Sealant shall be placed in the clean, dry crack. The crack shall be slightly overfilled and immediately squeegeed to provide a "band-aid" type effect approximately 2 in. (50 mm) wide, flush with the pavement surface, and with the edges feathered out. The sealant shall be allowed to cure before opening to traffic. When approved by the Engineer, the sealant may be dusted with fine sand, portland cement, or mineral filler to prevent tracking.
451.05 Method of Measurement. This work will be measured for payment as
follows.
a.Crack Routing. Routed cracks will be measured for payment in feet (meters) along the routed crack.
b.Crack Filling. Filling of cracks will be measured for payment in pounds (kilograms) of sealant used. The quantity of sealant used will be determined by counting the containers of sealant used, multiplied by the indicated pounds (kilograms) of each container.
451.06 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for CRACK ROUTING (PAVEMENT) and per pound (kilogram) for CRACK FILLING. SECTION 452. CRACK AND JOINT SEALING PORTLAND CEMENT CONCRETE PAVEMENT
452.01 Description. This work shall consist of routing, cleaning, and sealing
longitudinal shoulder joints, transverse and longitudinal random cracks, centerline joints, contraction joints, and transverse expansion joints in portland cement concrete pavement.
452.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Hot-Poured Joint Sealer .................................................................... 1050.02
452.03 Equipment. The routing machine shall have a steel, circular cutting
head. The machine shall be capable of routing a uniform, square shape approximately 3/4 x 3/4 in. (19 x 19 mm) in either a straight or irregular line. The concrete saw shall have a diamond tipped saw blade that will reface and widen the joint a maximum of 1/8 in. (3 mm). The kettle used for heating the sealer shall be double-jacketed. Art. 452.04 Crack and Joint Sealing Portland Cement Concrete Pavement CONSTRUCTION REQUIREMENTS
452.04 General. The longitudinal shoulder joint between the edge of
pavement and the newly placed hot-mix asphalt (HMA) shoulder, the transverse and longitudinal random cracks in other than continuously reinforced portland cement concrete pavement, contraction joints and the centerline joints shall be routed or sawed to approximately 3/4 in. (19 mm) wide by 3/4 in. (19 mm) deep as close to a 1:1 ratio as possible. When routing or sawing the longitudinal shoulder joint, the router or saw used shall be capable of following the path of the joint without causing excessive spalling or damage to the adjacent rigid pavement. If old sealants are present in the joint or crack, they shall be removed prior to routing or sawing. Immediately ahead of the sealer placement, dust and debris shall be blown from the joint or crack with a power brush/blower or with compressed air at a minimum pressure of 90 psi (620 kPa). When compressed air is used, the pneumatic tool lubricator must be bypassed and a filter installed on the discharge valve to keep water and oil out of the lines. The hot-poured joint sealer shall be continuously and mechanically agitated during heating. The sealer shall be applied using the methods and equipment recommended by the manufacturer, except it shall only be placed when the air temperature in the shade is 40 °F (5 °C) or greater. Areas along the longitudinal shoulder joint, the transverse and longitudinal random cracks (where applicable), the contraction joint, or centerline where a void exists that exceeds 3/4 in. (19 mm) depth shall be provided with a backer rod to control the depth of sealant. The void shall be routed (if necessary) to provide a depth from the top of the backer rod to the top of the pavement of 3/4 in. (19 mm). The areas where backer rod will be required shall be as directed by the Engineer. The backer rod diameter shall be 1/8 in. (3 mm) wider than the routed joint. The backer rod shall be a closed-cell, plastic-foam, heat resistant, chemically inert, waterproof rod compatible with the sealant used. Sealant shall be placed in the clean, dry crack or joint. The crack or joint shall be slightly overfilled and immediately squeegeed to provide a "band-aid" type effect approximately 2 in. (50 mm) wide, flush with the pavement surface, and with the edges feathered out. The sealant shall be allowed to cure before opening to traffic. When approved by the Engineer, the sealant may be dusted with fine sand, portland cement, or mineral filler to prevent tracking. The procedure for routing, cleaning, and sealing longitudinal random cracks will be the same as the longitudinal shoulder joint, except the crack reservoir shall be sealed flush rather than providing an over-sealed or "band-aid" type effect. Transverse expansion joints shall be routed to create an approximate 1 in. (25 mm) deep reservoir. The walls of the joint shall be cleaned and refaced. The reservoir shall be filled flush with sealant. Earth Shoulders and Medians Art. 480.03 Existing raised reflective pavement markers shall be protected during the crack or joint sealing operations. Tracking of sealant material will not be allowed. If sealant materials are applied to the markers, such material shall be removed.
452.05 Method of Measurement. This work will be measured for payment as
follows.
a.Joint or Crack Routing or Sawing. Routed or sawed joints or cracks will be measured for payment in feet (meters) along the routed or sawed joint or crack.
b.Joint or Crack Filling. Filling of joints or cracks will be measured for payment in pounds (kilograms) of sealant used. The amount of sealant used will be determined by counting the containers or sealant used, multiplied by the indicated pounds (kilograms) of each container.
452.06 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for JOINT OR CRACK ROUTING (PC CONCRETE PAVEMENT AND SHOULDER) and JOINT OR CRACK ROUTING HOT-MIX ASPHALT SHOULDER; and per pound (kilogram) for JOINT OR CRACK FILLING. Furnishing and installing backer rod when required by the Engineer will be paid for according to Article 109.04. SHOULDERS SECTION 480. EARTH SHOULDERS AND MEDIANS
480.01 Description. This work shall consist of constructing earth shoulders
and medians. CONSTRUCTION REQUIREMENTS
480.02 General. The shoulder and median shall be constructed with earth
which is free from vegetation, roots, sod or other objectionable material. The shoulders and medians may be constructed and finished with a blade grader. The earth in shoulder and median areas shall be compacted as specified in Article 205.06, except that the earth in the area between curb or gutter and sidewalk shall be compacted in a manner meeting the approval of the Engineer. Prior to final blading and shaping of the shoulders and medians, they shall be rolled with a pneumatic-tired roller meeting the requirements of Article 1101.01.
480.03 Rigid Type Surfacing, Curb, Gutter, or Curb and Gutter. At
locations where shoulders or medians are constructed adjacent to a portland cement concrete pavement, portland cement concrete base course, curb, gutter, or curb and gutter, placing of the earth for the shoulders or medians shall be completed and the
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 306–308 of 1,217. View official source ↗