Summary of Rubber Modified Asphalt Product Specifications around ...
Summary of Rubber Modified Asphalt Product Specifications around ...
Summary of Rubber Modified Asphalt Product Specifications around ...
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<strong>Asphalt</strong>-<strong>Rubber</strong> Stress-Absorbing Membranes shall be placed between the dates specified<br />
in the Special Provisions.<br />
The existing pavement shall be cleaned in accordance with the requirements <strong>of</strong><br />
Subsection 404-3.04.<br />
After cleaning and prior to the application <strong>of</strong> the membrane, the existing pavement surface<br />
shall be treated with a tack coat as hereinbefore specified.<br />
Placement <strong>of</strong> the asphalt-rubber membrane shall be made only when all <strong>of</strong> the following<br />
conditions are met:<br />
(1) The ambient air temperature and the pavement surface temperature are both<br />
above 65 degrees F.<br />
(2) The pavement is dry.<br />
(3) The wind conditions are such that a satisfactory membrane can be achieved.<br />
(4) All construction equipment such as asphalt rubber distributor, aggregate<br />
spreader, haul trucks with cover material, and rollers are in position and ready to<br />
commence placement operations.<br />
The distributor shall be capable <strong>of</strong> spreading the asphalt-rubber mixture in accordance with<br />
the tolerances specified in Subsection 404-3.02(A) except that the maximum deviation from<br />
the specified rate shall not exceed 0.05 gallons per square yard.<br />
The hot asphalt-rubber mixture shall be applied at the rate <strong>of</strong> approximately 0.55 ± 0.05<br />
gallons per square yard (based on a unit weight <strong>of</strong> 7.75 pounds per gallon <strong>of</strong> hot<br />
asphalt-rubber); however, the Engineer will specify the exact rate based on existing surface<br />
conditions.<br />
All transverse joints shall be made by placing building paper over the end <strong>of</strong> the previous<br />
application, and the joining application shall start on the building paper. Once the<br />
application process has progressed beyond the paper, the paper shall be disposed <strong>of</strong> as<br />
directed by the Engineer.<br />
All longitudinal joints shall be lapped approximately four inches.<br />
Traffic shall not be permitted on the asphalt-rubber membrane prior to the application <strong>of</strong><br />
cover material.<br />
410-3.03 Application <strong>of</strong> Cover Material:<br />
Cover material shall be applied in accordance with the requirements <strong>of</strong> Subsection 404-<br />
3.06.<br />
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