Study on Water Stability of Evotherm^® Warm Asphalt Mixture

Abstract:

AC-13C asphalt mixtures were mixing with 3% Evotherm^® content and the optimal compaction temperature was determined according to test results of specimens formed at 4 different compaction temperatures by Marshall method. The general water stability tests and Hamburg wheel-tracking device (HWTD) were used to test the water stability of 4 kinds of asphalt mixtures, which were ordinary asphalt mixture, Evotherm^® asphalt mixture without adding any anti-stripping agent, Evotherm^® asphalt mixture adding liquid anti-stripping agent and Evotherm^® asphalt mixture adding hydrated lime. Test results shows that the optimal compaction temperature is about 125°C; and compared to ordinary asphalt mixture, the long-term water stability of Evotherm^® asphalt mixture is obviously poor caused by the lower compaction temperature; the addition of either liquid anti-stripping agent or hydrated lime improve the water stability to a great extent; comparatively speaking, addition of hydrated lime is the optimum measure to improve the water stability of Evotherm^® warm mixture asphalt.

• Periodical: Advanced Materials Research (Volumes 753-755)
• Pages: 819-822
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.753-755.819
• Online since: August 2013
• Authors: Kui Li, De Dong Guo
• Keywords: Anti-Stripping Agent, Evotherm^® Asphalt Mixture, HWTD, Pavement Material, Water Stability

References

[1] W.Z. Duan. Highway 2007，10: 203-204.

[2] X.L. Zheng, X.M. Jiang. Highway Engineering of Central South University，2004，29(2): 65-68.

[3] H.B. Li. North Traffic，2006，10: 10-13.

[4] X.Y. Zhou, Y.Q. Tan, Z.H. Li. Petroleum Asphalt，2005，19(5): 19-22.

[5] X.Y. Fu, K Tan, D Lu. Liaoning Communication Science and Technology，2005，6: 1-3.

[6] Y.L. Zhang. Road Machinery & Construction，2003，20(1): 9-13.

[7] C.F. Ai, J Chen, D Liu. Central South Highway Engineering，2007，32(3): 16-20.