Effects of fibre additive on the high temperature property of asphalt binder

Abstract

Polyester fibre and floc xylogen fibre were used to prepare fibre-asphalt binder. An SHRP’ s dynamic shear rheometer (DSR) was employed to investigate the rheology characteristics of fibre-asphalt binder, and the flow resistance of binder was revealed by combining the rutting parameter, G * / sinδ. The results indicate that both kinds of fibres remarkably improved the high temperature performance of asphalt binder. At the same time, the reinforcement mechanism of the fibres in the asphalt binder was also analyzed.

Keywords

fibre / asphalt / proerty / reinforcement

References

[1] Zou G L, Zhang X N, Han C D. Utilization of DSR for Evaluation of Pavement Performance. Journal of Harbin University of C. E & Architecture, 2001, 34(3): 112-115.

[2] Zhang Z Q, Hu C S. Study on Fiber-enhanced Asphalt Concrete. Journal of Xi’ an Highway University, 2001, 21(l): 29-32.

[3] Chen H X, Li N L, Hu C S, Zhang Z Q. Mechanical Performance of Fibers-reinforced Asphalt Mixture. Journal of Chang’ an University (Natural Science Edition), 2004, 24(2): 1-6.

[4] Wu S P. Research on the Polymer Fiber Modified Asphalt Mixture. Journal of Wuhan University of Technology-Mater. Sci. Ed., 2003, 25(12): 47-49.

[5] Chen J S, Li K Y. Mechanism and Behavior of Bitumen Strength Reinforcement Using Fibers. Journal of Materiah Science, 2005, 40(1): 87-95.

[6] Ni L S, Hu C S, Zhang Z Q, Chen H X. Reinforcement Mechanism Analysis of Fiber Asphalt Concrete. Journal of Hefei University of Technology, 2003, 26(5): 1033-1037.