Study on Influences of Warm-Mix Agent on SBS Modified Asphalt Mixture

Abstract:

Through conventional and unconventional tests, the influences of self-developed warm-mix agent on the performances of SBS modified asphalt are studied. The results show that the warm-mix agent has great influences on the ductility and aging quality changes of SBS modified asphalt; and the warm-mix agent can improve the asphalt rutting factor G*/sinδ and fatigue factor G* • sinδ. The mixing ratio of the warm-mix SBS modified asphalt mixture is designed based on GTM method and the pavement performance is compared and verified. The results show that: in terms of high temperature performance, the warm-mix asphalt mixture is superior to the corresponding hot-mix asphalt mixture; and in terms of low temperature performance and water stability, the former is equivalent to the latter.

• Periodical: Applied Mechanics and Materials (Volumes 361-363)
• Pages: 1805-1810
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.361-363.1805
• Online since: August 2013
• Authors: Xiao Yan Song*, Yuan Yuan Li, Qiang Hua Ji
• Keywords: Conventional Test, Pavement Performance, Unconventional Test, Warm-Mix Agent, Warm-Mix SBS Modified Asphalt Mixture

References

[1] Ouyang Wei, Wang Lian-guang, Yang Yan-hai. Research on warm mix asphalt' application based on emulsion technology [J]. Journal of China & Foreign Highway, 2008, 28 (4) : 218～220.

[2] Tejash Gandhi. Effects of Warm Asphalt Additives on Asphalt Binder and Mixture Properties[D]. Clemson: ClemsonUniver2sity, (2008).

[3] Zhou Wei-feng. Study of Design Methodology for Asphalt Mixture Based on GTM[D]. Xi'an: Chang'an University, (2006).

[4] Ministry of Communications. JTJ 052-2000 Standard Test Methods of Bitumen and Bituminous Mixtures for Highway Engineering. [S]. Beijing: China Communications Press, (2000).