Application Technical Research Of Soft Water-Proof Layer On Concrete Bridge Surface

With the rapid development of highway,an obvious increase in quantity of bridge is coming.Because we ignore the quality control of soft water-proof layer in bridge building , it influenced the characteristic for use and durability of concrete.Based on the investigation of damage in bridge decks pavement and water-proof layer,this paper analyzed the reason which caused diseases,and the finite element mechanics method is taken to analyze the waterproof and cohesive layer in pavement structure.Application Technical of Soft Water-proof Layer in Concrete Bridge Surface is researched by using room tests and other tests.It proposed the choice of material,main property index and it's tests,quality control,The research results has been applied in Ninglian highway and it can guide practice of soft water-proof layer in concrete bridge surface in other engineering.The main contents are:1,By investigation of water-proof layer,this paper analyzed the reason which caused diseases,and the require of water-proof layer design.According the practice,it's important to put the waterproof and cohesive layer in bridge pavement structure;2,According plate beam,T beam and continuous box girdr,the mechanical behaviors of bridge pavement structure are studied using the finite element method,and find the law of mechanic,which can provide the basis for design.3,The main property index and it's test method in the waterproof and cohesive laye are introduced;4,The construction craft and the quality control technology of soft water-proof layer in concrete bridge surface are explained,by using room tests and other test;This paper r proposed the construction craft and quality control of soft water-proof layer in concrete bridge surface.,which can serve as a good aid.