Sliding Resistance and Mechanical Properties of Two-Component Epoxy Resin Anti-skid Thin Layer
XIE Qun1, WANG Quanlei2,3, WANG Huoming2, XU Zhoucong2
(1. Jiangxi North Jiangxi Highway Survey and Design Institute, Jiujiang 332001, Jiangxi, China; 2. China Merchants Chongqing Communications Research & Design Institute Co., Ltd., Chongqing 400067, China; 3. School of Highway, Changan University, Xian 710064, Shaanxi, China)
Abstract：In order to study the anti-skid performance of two-component epoxy resin anti-skid thin layer, the accelerated loading test and mechanical test were combined to discuss the influence of different aggregate types on their anti-skid performance. SMA-10 and the modified emulsified asphalt micro-surfacing were selected as control group to carry out the accelerated loading test. The variation rule of BPN, TD and aggregate abrasion mass loss rate changing with time was analyzed, and the attenuation law of anti-skid performance was fitted and regressed by logarithmic formula. Through shear test and drawing test, the influence of different aggregate types and asphalt base surfaces on their mechanical properties was analyzed. The experimental results show that:the skid resistance of the two-component epoxy resin anti-skid thin layer is better than that of SMA-10 and the modified emulsified asphalt micro-surfacing;within 3 hours after the start of accelerated loading test,the attenuation speed of anti-skid performance is relatively fast, and the attenuation speed is slow in the later stage and trends to decrease slowly;the relationship of TD and BPN changing with wear time has a good correlation with logarithmic formula;the shear strength and bond strength between the anti-skid thin layer and the asphalt concrete base surface are relatively high, and the failure surfaces of the specimens occur inside the asphalt layer.
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2020, Vol. 39 
