Experimental Study on Overlay Asphalt Mixture

Abstract:

To study the asphalt pavement performances on high temperature or its water stabilities, a series of tests, including high temperature stability test, immersion Marshall test, freeze-thaw splitting test, were finished. According to bailey method, initial quasi grading were calculated. Passing rate of 2.36 mm is respectively 36.3%, 33.1%, 36.1%, 38.7%, which is close to the initial quasi grading, namely 36%, 31.5%, 36%, 40%. Respectively at the test temperature of 60 °C, 68 °C, rutting tests were put forward. The results show that the mixture of gradation one has a higher temperature stability than the others in any case. Marshall immersion test and freeze-thaw test were conducted, optimizing with freeze-thaw splitting intensity ratio, which shows that the mixture of gradation one has a better water stability. To sum up, gradation one is recommended, designed by Marshall compaction molding with times of 100.

• Periodical: Applied Mechanics and Materials (Volumes 253-255)
• Pages: 607-610
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.253-255.607
• Online since: December 2012
• Authors: Yu Qing Yuan, Wei Li, Xue Chan Li, Tao Guo
• Keywords: Asphalt Overlay, High Temperature Stability, Road Engineering, Water Stability

References

[1] Q.L. Sha:Journal of Foreign Highway, Vol.22(1)(2001), pp.34-38.

[2] H.C. Zhang, L.J. Sun: Journal of Tongji university, Vol.30(4)(2002), pp.422-426.

[3] J. Li, P. W. Hao: Highway, Vol.49(5)(2004), pp.131-134.

[4] X. D. Wang, W. M. Dai:Highway transportation technology, Vol.18(4)(2001), pp.20-24.

[5] D. L.Xu:Degree thesis of Chongqing jiaotong university, 2008.