| Title |
A Study on Analyzing Causes of Dissolution of Asphalt Sheet in Composition Waterproofing Membrane of Sheet and Liquid and Preventing Oil Leakage using Solvent Resistant Film |
| Authors |
Kwon Ki-Joo ; Kim Dong-Bum ; Song Je-Young ; Kwak Kyu-Sung ; Oh Sang-Keun |
| Keywords |
Modified Asphalt Sheet ; Urethane ; Oil Leakage ; Dissolution |
| Abstract |
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. |