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MATERIALS <br />Hot Applied Joint Sealer 1028-2 <br />CONSTRUCTION METHODS <br />Install the sealant so that it forms a complete watertight bond with a high degree of elasticity, <br />with maximum flexibility and longevity under extreme temperature ranges. <br />Clean cracks and joints using a hot compressed air lance to blast out any vegetation, dirt, <br />dampness and loose materials from the cracks and joints. Equip the air compressor with <br />suitable traps and filters to remove moisture and oil from the compressed air. Use the hot air <br />lance to dry and warm the adjacent pavement immediately before sealing. Direct flame dryers <br />are not allowed. <br />Heat and apply the sealant material according to the manufacturer’s recommendations. Use <br />a portable melting kettle for heating the material that is equipped with indirect heating <br />(air-jacketed flow) and is capable of constantly agitating the joint sealer to maintain a uniform <br />temperature. Equip the kettle with either mechanically operated paddles and/or a continuous <br />circulating pump to maintain agitation. Use heating equipment capable of controlling the <br />sealant material temperature within the manufacturer’s recommended temperature range and <br />that is thermostatically-control calibrated between 200°F to 600°F. Locate a thermometer on <br />the kettle so the Engineer can safely check the temperature of the sealant material. <br />Overheating of the sealant material will not be permitted. <br />Apply sealant in the prepared cracks and joints within the manufacturer’s recommended <br />temperature range, using a pressure screed shoe to completely fill the crack or joint, leaving <br />a sealed 2" overband. Excessive overbanding or waste of sealant materials will not be <br />tolerated. Immediately squeegee the crack seal material to minimize the height of the <br />overband. All sealed cracks and joints shall have a minimum of 1/8" depth of sealant <br />installed. <br />Do not apply the hot applied joint sealer when the surface temperature of the pavement is <br />below 32°F. Follow manufacturer’s recommendations. <br />After the crack or joint has been sealed, promptly remove any surplus sealer on the pavement. <br />Do not permit traffic over the sealed cracks and joints without approval by the Engineer. <br />When approved by the Engineer, place sand or other approved material over the crack or joint <br />to prevent tracking. <br />110 <br />DocuSign Envelope ID: 797C32F6-C1CE-44EB-BF17-813A5939396C