Abstract
In order to reduce the dosage of diluent in diluted asphalt mixture, this paper introduces a surfactant to improve the performance of asphalt mixture, the oil-soluble surfactant was added to the diluted asphalt mixture, and the effect of oil-soluble surfactant on the performance of diluted asphalt mixture during construction was investigated by mixing adhesion test, penetration test, cohesive test and rotary compaction test. At the same time, combined with rutting test, low temperature bending test and Marshall test, the effect of oil soluble surfactant on the performance of diluted asphalt mixture in service period was analyzed.The test results show that 1% oil-soluble surfactant can reduce diesel diluent at least 4%, and the addition of surfactant can significantly improve the construction performance of diluted asphalt mixture. At the same diluent dosage, the strength of asphalt mixture diluted by surfactant increases significantly, the low temperature performance and water stability are improved, and the high temperature performance is slightly insufficient and slightly reduced. The other road performance can meet the standard of hot mix.
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