Roller when the roller compacted asphalt concrete mixtures, rollers start rolling the time not later than the mixture spread of 15min, this is because the high temperature of asphalt mixture in the atmosphere under ambient temperature conditions prone to temperature drop, it must control the temperature range.
Asphalt concrete during construction of the temperature decreased by 1~5℃ per minute. From paving to the rolling start, normal 1~8min, temperature drops to-40℃, so it must be technology proficient paving hand and reasonable construction technology.
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