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The purpose of this study is to provent asphalt dissolution by polyurethane coating contained volatile organic solvents in hybrid waterproofing system. if the asphalt that compose the waterproofing membrane is dissolved, it is lost its function of waterproof by decreasing thickness of waterproofing membrane. Furthermore, secondary damage caused by the asphalt meltage that flowed out from the Crack of Structures. The result of precedent study that analyze on the volatile organic solvents on the asphalt showed that the asphalt was dissolved when adding over 10% of volatile organic solvents and oil leakage was observed when adding 15% of volatile organic solvents. For this reason, in this study, nylon 6 films treated with corona is used to prevent the asphalt dissolution. The test was carried out on the same condition. The following is the experimental methods. First of all, after the nylon 6 films is laminated on surface of asphalt sheet, polyurethane coating spread with top of that. Then mortar spread with top of polyurethane coating again. Polyurethane coating used in this study is mixed with amount of volatile organic solvents of four types. the result of the test showed that every type wasn't dissolved and oil leakage wasn't observed.
The quality of the material is managed to quantifying the performance requirement of waterproofing materials on Korea standard. However the waterproofing material frequent not occurred to do display performances, even though one passes Korea standard, because it has various variables to occur waterproofing defections by the environment of construction in the field. Therefore, this study that the test plan of the combined deterioration environments is used the tables of orthogonal arrays is intended as a proposal of quantitative plan to have size of influence on the waterproofing material using the two-way ANOVA of the statistical procedure through the performance test to have mixing the deterioration factors. Test a result, the waterproofing film which are exposed to be particular combined deterioration environments is confirmed what it lose a function to get damaged, and the peeling resistance data make a comparison to relative size of materials by deterioration factors. The film which are exposed to be particular combined deterioration environments is confirmed what it lose a function to get damaged, and the peeling resistance data make a comparison to relative size of materials by deterioration factors.