The Application Study Of Bridge Deck Waterproofing Material Based On Polymer

Bridge deck waterproofing is an important task which guarantee the duration of concrete bridge. How to improve waterproofing effect from the material of waterproof is a problem which should be solved urgently in highway engineering nowadays. Directed against performance of bridge deck waterproofing requirements, the paper studies a polymer as a waterproofing material systematically, including basis component, mechanism of forming membrane, principle of waterproofing and working so as to provide some reference basis for use of the new polymer waterproof material in bridge deck protection.On the basis of technical literature, the paper studies various engineering properties of the polymer material with the method of theory analysis combined experiment in lab. The experiment results indicate that the polymer material adopted in this paper possesses excellent engineering performances and effective waterproof function. Compared to normal waterproof materials, the new polymer waterproof shows better engineering characteristics, such as tensile strength, ratio of breaking elongation, especially maintenance rate of tensile strength and breaking elongation after disposed at high temperature. The polymer waterproof also has excellent road performances which are entirely meet the engineering requirements, such as shear strength, tensile and pull strength, anti-construction damage performance, fatigue resistance performance etc. Furthermore, experiment proves that the polymer film on bridge deck can remain perfect after compaction of hot asphalt mixture on it, which achieves the desired goal of bridge waterproofing.Through a series of lab experimentation, the paper perfects performance index, proves the methods of experiment, evaluation approach and criterion for polymer waterproof of bridge deck. Meanwhile, the paper puts forward the preliminary construction process according to the requirements of waterproofing construction, so as to provide some reference basis for establishing the technique system and relevance specifications of polymer waterproof.