摘要:
PURPOSE: A construction method of a composite waterproof structure for preventing leakage of dissolved asphalt ingredients is provided to give an improved waterproof structure by forming connection parts. CONSTITUTION: A construction method of a composite waterproof structure for preventing leakage of dissolved asphalt ingredients is as follows. A polyurethane coating layer is formed and hardened by spreading polyurethane on a floor. Multiple asphalt sheets are connected each other and attached on the polyurethane coating layer. A reinforcement material composed of a TPU film is formed on the bottom of connection parts of the asphalt sheets. Liquid polyurethane is spread out on the connection parts of the asphalt sheets. A PET protective film layer is formed on the top of the asphalt sheets.