Laboratory Research of Optimum Fiber Content in SMA Mixture Based on High Temperature Performance

Abstract:

At present designers take little account of the different requirements of pavement performance when determining the adding ratio of lignin fibers in Chinese SMA mixture. Basing on the high temperature performance the article studied the optimum fiber content of SMA-13 mixture through comparative tests of performance. First aiming at SMA-13 mixture with different fiber contents, the mix proportions were designed and asphalt contents were verified. Then the effect of fiber content on high temperature performance was indicated through three kinds of interrelated performance tests. At last other pavement performances of SMA-13 mixture were verified. Based on the test results, an optimum fiber content of 0.33% is recommended for the lignin fibers used in this SMA-13 mixture, with which mixture poses the best high temperature performance.

• Periodical: Applied Mechanics and Materials (Volumes 361-363)
• Pages: 1709-1712
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.361-363.1709
• Online since: August 2013
• Authors: Ying Wei Cheng
• Keywords: High Temperature Performance, Optimum Fiber Content, SMA-13 Mixture

References

[1] ZHANG Zhi-xiang, CHEN Rong-sheng. Journal of Highway and Transportation Research and Development, Vol. 23 (2006), pp.28-31. (in Chinese).

[2] Huaxin Chen, Qinwu Xu, Shuanfa Chen. Materials and Design, Vol. 30 (2009), pp.2595-2603.

[3] JTG F40-2004, Technical Specification for Construction of Highway Asphalt Pavement. Beijing: China Communications Press(2004) (in Chinese).

[4] CHEN Shuanfa. Design and construction of bituminous mixture . Beijing: Chemistry Industry Press, (2005) (in Chinese).

[5] JTG E20-2011, Standard Test Methods of Bitumen and Bituminous Mixture for Highway Engineering. Beijing: China Communications Press(2011) (in Chinese).