Affiliation:
1. Quality Supervision Station of Transport infrastructure projects,Gansu
2. Gansu Provincial Communications Planning and Design Institute Co., Ltd.
3. GanSu Research Institute of Highway Maintenance technology CHINA
Abstract
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.
Publisher
Trans Tech Publications, Ltd.
Reference3 articles.
1. ASTM D7405-08. Standard Test Method for Multiple Stress Creep and Recovery(MSCR)of Asphalt Binder Using a Dynamic Shear Rheometer[S].
2. Xiaomin Li. Study of Asphalt Mastic Evaluation Method and Perpofmance based on Rheology. [D] . Harbin, PR China：Harbin Institute of Technology, 2006. 44~45. (in Chinese).
3. John D'Angelo. Guidance on the Use of the MSCR Test with the M320 Specification[R]Asphalt Institute Technical Advisory Committee. Kentucky: (2010).
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献