The effects of montmorillonite content on the high and low temperature and water stability of styrene butadiene rubber modified asphalt mixture were studied by rutting test,low temperature bending test,immersion Marshall test and freeze-thaw splitting test,and the influence of montmorillonite content on road performance was analyzed by Deng's correlation degree.The results show that montmorillonite can improve the high temperature stability and water stability of styrene butadiene rubber modified asphalt mixture,and the water stability will be adversely affected when the content exceeds 4％.The results show that addition of montmorillonite will make the low temperature crack resistance worse;The influence of montmorillonite content on the road performance index of styrene-butadiene rubber modified asphalt mixture was in the order of high temperature performance＜water stability＜low temperature performance.Considering the influence of various aspects of performance and the degree of influence,the suitable content of montmorillonite is 2％～4％,recommended content of montmorillonite is 3％.
维普
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