不同水泥混凝土桥面防水粘结层材料试验研究

Study on Test of Different Waterproof Adhesive Layer Materials for Cement Concrete Bridge Deck

桥面防水粘结层能将沥青铺装层与水泥混凝土桥面板牢固粘接成一整体,是桥面铺装体系中至关重要的层位。该文在分析了防水粘结层失效模型后,对比研究了水性环氧沥青、SBS改性沥青两种防水粘结材料的基本性能,并通过室内模拟试验从不同影响因素对上述两种防水粘结材料的力学性能进行综合评价,表明水性环氧沥青防水粘结层具有优良的综合性能,为合理选择防水粘结材料提供了科学依据。

The waterproof adhesive layer of bridge deck can firmly bond the asphalt paving layer and the cement concrete deck plate into a whole,and is the crucial layer in the deck pavement system.After analyzing the waterproof adhesive failure model,the article compares and studies the basic properties of two waterproof adhesive materials of waterborne epoxy asphalt and SBS modified asphalt,and comprehensively evaluates the different influence factors of mechanical properties on the above two waterproof adhesive materials through the laboratory simulating tests.The result shows that the waterproof adhesive layer of waterborne epoxy asphalt has the excellent comprehensive property in order to provide the scientific basis for reasonably selecting the waterproof adhesive materials.