LINING MATERIAL AND EXISTING-PIPE REGENERATION METHOD USING THE SAME

PROBLEM TO BE SOLVED: To provide a lining material that eliminates the uneven heating of a lining material formed of a composite material of a thermoplastic filament and a reinforcing fiber filament, and an existing-pipe regeneration method using the same. SOLUTION: The lining material 1 includes a plurality of flexible liner base materials 21, 22, and 23 formed of composite materials containing thermoplastic filaments and reinforcing fiber filaments. A heat transfer body 3, formed by molding a high-thermal conductivity material into a net-like and almost a cylindrical shape is interposed between the liner base materials 21, 22. The regeneration of an existing pipe 5 is executed as follows. The lining material 1 is inserted into the existing pipe 5 so as to be arranged at a repair target. The lining material is softened by being heated at a temperature of the melting point of the thermoplastic filament or higher. The lining material is pressurized from the inside by a diameter-expanding tube so as to shape the lining material into a pipe shape along the inner peripheral face of the existing pipe 5. The diameter-expanded liner base materials 21, 22, and 23 are cooled and hardened so as to line the existing pipe 5. COPYRIGHT: (C)2011,JPO&INPIT