Performance of polymer and crumb rubber modified asphalt binders subjected to high stresses in multiple stress creep recovery test

2015 ◽  
pp. 97-103 ◽  
Author(s):  
Aniket Kataware ◽  
Dharamveer Singh
Keyword(s):  
Crumb Rubber ◽  
Asphalt Binders ◽  
Creep Recovery ◽  
Recovery Test ◽  
Multiple Stress ◽  
Modified Asphalt ◽  
Multiple Stress Creep Recovery

Research on Rubber/SBS Modified Asphalt by MSCR Test

2012 ◽  
Vol 557-559 ◽  
pp. 1066-1069 ◽  
Author(s):  
Xiao Bing Qiao ◽  
Xiao Min Li ◽  
Ding Bang Wei
Keyword(s):  
High Temperature ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Creep Recovery ◽  
Climate Conditions ◽  
Recovery Test ◽  
Multiple Stress ◽  
Modified Asphalt ◽  
Multiple Stress Creep Recovery ◽  
Sbs Modified Asphalt

Multiple stress creep recovery test (MSCR) as an effective evalution mothed for polymer modified asphalt was studied newly,and was formed a new ASTM standard.In this article, SBS modified asphalt,rubber asphalt,and rubber/SBS composite modified asphalt were taken a multiple stress creep recovery test (MSCR) through the dynamic shear rheometer (DSR), value of Jnr and Jnr-diff from MSCR test of different modified asphalt were studied according to ASTM D7405-08.The results showed the rubber / SBS modified asphalt had a lower Jnr compared with the other two,which indicating that it had an obvious advantage on high temperature deformation resistancing.Furthermore,low Jnr-diff value was related with lower dependence on the shear stress. made it applicable to conditions such as high temperature and overload or long steep road construction; MSCR test also provides a reasonable basis for choosing modified asphalt in such geological and climate conditions.

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