Art. 450.04 Crack Sealing Hot-Mix Asphalt Pavement Wheel saw cut extensions or other large areas removed from the shoulders shall be replaced with the same material as in the existing shoulder before opening to traffic. Excess material shall be disposed of according to Article 202.03.
450.05 Method of Measurement. This work will be measured for payment in
feet (meters) along the joint from edge to edge of pavement.
450.06 Basis of Payment. This work will be paid for at the contract unit price
per foot (meter) for RELIEF JOINT, of the width specified. If the sawed joint closes and the Engineer requires resawing the joint, this resawing will be paid for according to Article 109.04. SECTION 451. CRACK SEALING HOT-MIX ASPHALT PAVEMENT
451.01 Description. This work shall consist of routing, cleaning, and sealing
transverse and longitudinal reflected cracks in existing hot-mix asphalt (HMA) pavement.
451.02 Materials. Materials shall be according to the following.
Item Article/Section
a.Hot-Poured Joint Sealer .................................................................... 1050.02
451.03 Equipment. The routing machine shall have a steel, circular cutting
head with carbide tipped cutters mounted radially. 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 kettle used for heating the sealer shall be double-jacketed. CONSTRUCTION REQUIREMENTS
451.04 General. Primary transverse and longitudinal working cracks shall be
routed, cleaned, and sealed. Any adjacent secondary cracks shall be only cleaned and sealed as directed by the Engineer. Cracks shall be routed following the crack as nearly as possible, approximately 3/4 in. (19 mm) wide by 3/4 in. (19 mm) deep as close to a 1:1 ratio as possible. Immediately ahead of sealer placement, dust and debris shall be blown from the crack with a power brush/blower or with compressed air with 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. 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.
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Source: Illinois Standard Specifications for Road and Bridge Construction, 2022 Edition. Pages 305–306 of 1,217. View official source ↗