Research on the Performance of Composite Modified Basalt Fiber PA-13 Drainage Asphalt Mixture
[Purposes]To improve the road performance of drainage asphalt mixture,SBS,rubber powder,and basalt fiber stabilizer were selected for composite modification.[Methods]Based on the previous re-search results of the research group,the mix design of PA-13 asphalt mixture was carried out on the ba-sis of SBS and rubber powder modifiers with a dosage of 5%and 10%,respectively,and basalt fiber with a dosage of 0.4%;a study was conducted on the road performance of PA-13 drainage asphalt mixture un-der different rubber powder dosages,including high temperature resistance to rutting,water damage,and peeling.[Findings]From the perspective of high temperature performance and economy,the reasonable dosage of rubber powder is 12%;from the perspective of water stability performance,the rubber powder content is 10%;from the perspectives of anti peeling ability and economy,the reasonable dosage of rub-ber powder is 10%.[Conclusions]The addition of SBS,rubber powder,and basalt fibers can improve the road performance of drainage asphalt mixtures.
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