Ai C.,Southwest Jiaotong University |
Ai C.,Highway Engineering Key Laboratory of Sichuan Province |
Yang T.,Southwest Jiaotong University |
Yang T.,Highway Engineering Key Laboratory of Sichuan Province |
And 5 more authors.
Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) | Year: 2014
Composite beam samples were made bonding with modified asphalt mixture and cement concrete by special asphalt binder of seamless expansion joint, and the bonding performances were studied by direct tensile tests.The influence rules and failed states under different temperatures and conditions of interface bonding were analyzed, and the bonding failure causes were explained. The results show that (1)temperature has great effects on bonding performance. bonding strength decreases with temperature rising, but the decreasing rules are different in different temperature range, when temperature higher, the decreasing speed slower; (2)rough interaction can improve bonding performance, but the improving effects are different under different temperature, low temperature “prominent” and high temperature “indistinctive”; (3)the characteristics of bonding failure are different under different temperature, “brittle rupture ” under low temperature, “divulsion” under normal temperature, and “agglutinate rupture” under high temperature. ©, 2014, Wuhan University of Technology. All right reserved.