Effect of Flame Retardant on the Mixing Performance of Warm Mix Rubber Asphalt Mixture
In order to study the effect of flame retardant on the mixing performance of warm mix asphalt mixture,three flame retardants(XT-1 flame retardant,JL-00112 flame retardant,and JL-0323 flame retardant)are selected in this paper.Three kinds of the warm mix(XT-YW2 warm mixture,JL-0343 warm mix,and JL-032 warm mixture)are compounded to modify rubber asphalt and to carry out the asphalt three index and asphalt viscosity test.For each warm mixture,a flame retardant with the least impact on asphalt performance is preliminarily selected to prepare the corresponding flame-retardant warm mix composite modified rubber asphalt mixture.Marshall compaction test is used to test the mixing and compaction performance of flame retardant warm mix rubber asphalt.The warm mix performance of different flame retardants to warm mix rubber asphalt is quantitatively evaluated by volume parameters and stability.The optimal combination of flame retardant and the warm mixing agent is determined and used in project practice of an asphalt pavement project,and the warm mixing effect and engineering benefits are analyzed.
flame-retardant warm mix rubber asphalt mixturethree major indicators of asphaltviscosityvolume parameters of asphalt mixturewarm mix performanceeconomic benefits
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