Road applications performance of reclaimed asphalt mixture prepared RAP by short-term aging method
HUANG Junrui
ZHANG Zhaojie
YUAN Zhaodi
ZHANG Huan
Abstract：In order to study the pavement performance of reclaimed asphalt mixture,the short-term aging method is used to simulate the aging of styrene butadiene styrene(SBS)modified asphalt and rock asphalt(RA)modified asphalt mixture.The aged materials are used as reclaimed asphalt pavement(RAP)to prepare SBS recycled asphalt,RA recycled asphalt,and ordinary recycled asphalt mixture.The high temperature stability,low temperature crack resistance,rutting resistance,and water stability of these three mixtures are compared with conventional asphalt mixture.The experimental results show that the high temperature dynamic stability of the two modified-recycled asphalt mixtures is similar and better than the other two asphalt mixtures.The conventional mixture has the best low temperature performance,slightly higher than the two modified-recycled mixtures,and the ordinary recycled has the poorest low temperature performance.The Hamburg wheel track test performance of the modified-recycled asphalt mixture is better than the other two asphalt mixtures,and there is a turning point in the rut depth of the ordinary asphalt asphalt mixture.The low temperature performance and water stability of the modified-recycled asphalt mixture do not significantly deteriorate,and the high temperature performance is comparable to that of the conventional recycled asphalt mixture,meeting the performance requirements of the asphalt mixture.
Keywords：SBS modified asphaltRA modified asphaltreclaimed asphalt mixtureshort-term aging methodpavement performance
Publication Date：2023-12-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 98-103 )