1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou Guangdong 510641, China;
2. Guangxi Qinzhou Linhai Industrial Investment Co., Ltd., Qinzhou Guangxi 535018, China
Determination of Compaction Temperature and Research on Pavement Performance of WMA Based on Bulk Density
XIAO Xin1, HUANG Kai-bin2
1. School of Civil Engineering and Transportation, South China University of Technology, Guangzhou Guangdong 510641, China;
2. Guangxi Qinzhou Linhai Industrial Investment Co., Ltd., Qinzhou Guangxi 535018, China
摘要Choosing two common warm mix modifiers (EC120 and Sasobit), adopting bulk density as the index to measure the effect of compaction, taking the temperature corresponding to the maximum density as optimum temperature, the asphalt mixture sample is formed under this temperature, and the road performance of warm mix asphalt is studied through immersion Marshall test, freeze-thaw split test, rutting test, bending and fatigue tests. The experimental result shows that (1) both modifiers can improve asphalt's high temperature performance, deformation resistance, and temperature sensitivity, while the low temperature performance of the asphalt is decreased a little; (2) water stability, high temperature stability, and fatigue resistance of the warm mix asphalt are all better than that of hot mix asphalt, whereas the low temperature crack resistance is mildly worse than that of hot mix asphalt. The paving of the experimental road proved to be better when the warm mix asphalt was used.
Abstract：Choosing two common warm mix modifiers (EC120 and Sasobit), adopting bulk density as the index to measure the effect of compaction, taking the temperature corresponding to the maximum density as optimum temperature, the asphalt mixture sample is formed under this temperature, and the road performance of warm mix asphalt is studied through immersion Marshall test, freeze-thaw split test, rutting test, bending and fatigue tests. The experimental result shows that (1) both modifiers can improve asphalt's high temperature performance, deformation resistance, and temperature sensitivity, while the low temperature performance of the asphalt is decreased a little; (2) water stability, high temperature stability, and fatigue resistance of the warm mix asphalt are all better than that of hot mix asphalt, whereas the low temperature crack resistance is mildly worse than that of hot mix asphalt. The paving of the experimental road proved to be better when the warm mix asphalt was used.
肖鑫, 黄开斌. 基于毛体积密度的WMA压实温度的确定及路用性能研究[J]. Journal of Highway and Transportation Research and Development, 2013, 7(4): 23-29.
XIAO Xin, HUANG Kai-bin. Determination of Compaction Temperature and Research on Pavement Performance of WMA Based on Bulk Density. Journal of Highway and Transportation Research and Development, 2013, 7(4): 23-29.
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2013, Vol. 7 
