Study on Design Method for Asphalt Overlay on Old Cement Concrete Pavement in Shanxi Province on Trunk Highway

Abstract:

In view of the the imperfection of design method of asphalt overlay on old cement under heavy-load traffic, and with the background of a successful practice of repaving improvement project in Xia Jiaying-Fen Yang expressway, this article analyzes the mechanical response of the old cement concrete road slab and the overlay, takes the influence of the void under slab on the life expectancy of asphalt overlay into account, and advances the mechanistic-empirical design process of asphalt overlay under heavy-load traffic. In comparison with Chinese standard, this method takes the influence of old concrete pavement on the reflective cracking of overlay into consideration, which ensures that there is no reflective cracking on the overlay in 3 years.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 977-983
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.977
• Online since: May 2014
• Authors: Hui Wang*, Jiu Peng Zhang
• Keywords: Black, Design Method, Heavy-Load Traffic, White, Xia-Fen Expressway

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