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What is the minimum and maximum curing time of asphalt prime coat?
Wiki User
∙ 14y ago
There are no curing time requirement for prime coat.
You can asphalt rigth away after your prime as long as the prime have the proper temperature.
There are curing time for TACK COAT which is different. (TACK IS OVER ASPHALT,PRIME IS OVER BASE ROCK ).Is a common mistake confuse those two different operations.
The curing time for TACK depend of the weather and varie between 8 hrs to 24 hrs.
Gustavo Cuenca
Civil Engineer.
Wiki User
∙ 14y ago
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AR = RAR / RAC Where: AR = application or shot rate of undiluted prime RAR = specified residual application rate RAC = residual asphalt content of prime There is good agreement in the literature on application rates. The Asphalt Institute recommends application rates of 0.9 to 2.3 L/m2 (0.2 to 0.5 gal/yd2) for MC cutbacks and 0.5 to 1.4 L/m2 per 25 mm of depth (0.1 to 0.3 gal/yd2/in depth) for asphalt emulsions. Others recommend from 0.65 L/m2 to 2.0 L/m2 (0.15 to 0.45 gal/yd2) . Application rates should vary based on the openness of the base and no more prime should be placed than can be absorbed by the granular base in 24 hours. Any excess should be removed with blotter sand.
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