路基工程Issue(5)：69-72,4.DOI:10.13379/j.issn.1003-8825.2017.05.15
桥面铺装防水粘结层材料抗剪切性能试验研究
Experimental Study on Anti-shearing Performance of Waterproof Bonding Course for Bridge Deck Pavement
摘要
Abstract
Based on the project of the waterproof bonding course for bridge deck pavement of South Outer Ring Highway in Nanchang,it's addressed to solve the deficiency of the anti-shearing performance of the waterproof bonding course for bridge deck pavement and its research.The anti-shearing performance is studied by developing shearing test clamps using UTM test system,making the waterproof bonding course compound test pieces for ES-2 slurry seal,AC-5 asphaltic sand and SBS modified asphalt synchronized gravels and conducting direct shearing test to different waterproof bonding course materials.The results show that the anti-shearing strength of AC-5 asphaltic sand is significantly higher than that of ES-2 slurry seal and SBS modified asphalt synchronized gravels.The interlayer bonding effect is much better.The direct shear test result can be used to evaluate the anti-shearing performance or divide the anti-shearing strength grades instead of determining the interlayer shear strength allowable value.The temperature has great impact on the shear strength of the waterproof bonding course materials.The anti-shearing performance will decrease sharply with the increase of temperature.The test temperature of interlayer shear strength allowable value is better to be determined combining with the local pavement design temperature and the extreme high temperature.关键词
桥面铺装防水粘结层/AC-5沥青砂/抗剪切性能Key words
waterproof bonding course for bridge deck pavement/AC-5 asphaltic sand/anti-shearing performance分类
交通工程引用本文复制引用
杜宏伟,朱小青..桥面铺装防水粘结层材料抗剪切性能试验研究[J].路基工程,2017,(5):69-72,4.基金项目
江西省交通厅重点科研项目(2016C0007) （2016C0007）
江西省交通厅重点科研项目(2014C0011) （2014C0011）
交通运输部建设科技项目(2013318780290) （2013318780290）
