Research on Rubber/SBS Modified Asphalt by MSCR Test

Xiao Bing Qiao; Xiao Min Li; Ding Bang Wei

doi:10.4028/www.scientific.net/AMR.557-559.1066

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 557-559Research on Rubber/SBS Modified Asphalt by MSCR...

Research on Rubber/SBS Modified Asphalt by MSCR Test

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.

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Periodical:

Advanced Materials Research (Volumes 557-559)

Pages:

1066-1069

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.557-559.1066

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Online since:

July 2012

Authors:

Xiao Bing Qiao, Xiao Min Li, Ding Bang Wei

Keywords:

Heavy Traffic, MSCR, Rheological Property, Rubber/SBS Modified Asphalt

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References

[1] ASTM D7405-08.Standard Test Method for Multiple Stress Creep and Recovery(MSCR)of Asphalt Binder Using a Dynamic Shear Rheometer[S].

DOI: 10.1520/d7405

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[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)

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[3] John D'Angelo.Guidance on the Use of the MSCR Test with the M320 Specification[R]Asphalt Institute Technical Advisory Committee.Kentucky:2010.

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