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MultiCool is a user-friendly application that calculates the rate of cooling in an HMA mat during construction. It requires that the user input such items as the time of day (entered automatically according to the computer's clock), latitude, air temperature, wind speed, mix information and lift thickness for each HMA lift, type of material being paved over, its temperature and whether or not the soil or base are frozen.
The program then computes how quickly each lift of HMA will cool and when the next lift may be placed. This allows field personnel to make decisions concerning cold weather paving and the scheduling of HMA deliveries to the paving site.