Study on the performance of hybrid fiber modified emulsified asphalt cold recycled mixture
In order to improve the performance of emulsified asphalt cold recycled mixture(EACRM),basalt fiber(BF)and polypropylene fiber(PP)were selected as hybrid fibers for proportioning design.Based on a series of indoor experiments,a compre-hensive and in-depth study was conducted on the mechanical,road use,anti loosening,and durability properties of hybrid fiber EACRM.The results show that with the increase of fiber content,the mechanical properties of EACRM are improved and then de-creased,and the fibers of reasonable amount and proportion can effectively improve the mechanical properties of EACRM;compared with single and unmixed fiber,mixed fiber has better EACRM road performance,loose resistance and durability;A hybrid fiber with m(BF)∶m(PP)=7∶3 and a total content of 0.4%can significantly enhance the comprehensive performance of EARCRM and further improve its service quality and service performance.
万方数据
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