The physical property,temperature scanning tests,and multiple stress creep recovery tests are conducted to investigate the effects of polyvinyl chloride(PVC)and nano-silica(NS)on the high temperature rheological prop-erties of asphalt.The results show that the addition of PVC and NS improve the viscosity and consistency of asphalt,and reduce temperature sensitivity,but the low-temperature properties have a deteriorating effectiveness due to the addition of PVC.In addition,the addition of modifiers improves the high temperature rheological properties of as-phalt,enhances the high temperature resistance to permanent deformation,and delays the occurrence of rutting dis-ease.
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