江苏大学学报（自然科学版）2017，Vol.38Issue(2)：224-229,6.DOI:10.3969/j.issn.1671-7775.2017.02.017
水性环氧树脂改性乳化沥青粘层抗剪性能的检验
Test of shear resistance of modified emulsified asphaltby waterborne epoxy resin
摘要
Abstract
To solve the diseases of slippage and surge of pavement structure due to the lack of interlayer cohesive force performance of asphalt pavement, the shear strength of epoxy emulsified asphalt tack coat was investigated for different epoxy emulsified asphalt distributing amount, test temperature and normal stress.Mohr-Coulomb principle was used to obtain cohesive force and internal friction angle.The interlayer shear stresses of five kinds of typical pavement structures were calculated by finite element software Ansys.The shear fatigue performance and the shear strength performance of epoxy emulsified asphalt were tested based on the calculation of interlayer maximum shear stress and shear strength.The results indicate that the shear strength increases with the increasing of normal stress by approximately linear trend, and the optimum epoxy emulsified asphalt distributing amount is 0.8 kg·m-2 at high temperature of 60 ℃.When distributing amount and normal stress are the same, the shear strength decreases with the increasing of temperature due to the decreasing of cohesive force.The maximum interlayer shear stress under the loads of 100 and 200 kN are respectively less than allowable shear stress and shear strength, and the shear fatigue damage and the ultimate shear failure at high temperature and heavy load are not generated on the asphalt surface.关键词
沥青路面/抗剪性能/水性环氧树脂/粘层/剪切疲劳破坏Key words
asphalt pavement/shear performance/waterborne epoxy resin/tack coat/shear fatigue damage分类
交通工程引用本文复制引用
常艳婷,陈忠达,牛小虎,周子刚..水性环氧树脂改性乳化沥青粘层抗剪性能的检验[J].江苏大学学报（自然科学版）,2017,38(2):224-229,6.基金项目
中央高校基本科研业务费专项资金资助项目(310821165023) （310821165023）
