| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lining material ensuring high strength against tensile force and compression force by containing reinforced fiber, and ensuring diameter expandability enough to bring it into close adhesion to an inner wall of an existing pipe. <P>SOLUTION: The lining material 1 as one embodiment is formed by laminating a coating layer 2 made of an impermeable material, a reinforced fiber layer 32 made of a sheet-shaped reinforced fiber material 321, and a matrix resin impregnating first base material layer 31 in order from the outer peripheral side toward the inner peripheral side. The reinforced fiber layer 32 is provided with an overlap part W. The lining material 1 meets a relation of the following formula: (L2+L3)>L1>L4 wherein L1 is the circumference of the coating layer 2, L2 is the circumference of the reinforced fiber layer 32, L3 is the total of circumferentially overlapping widths of the overlap part W, and L4 is the circumference of the first base material layer 31. <P>COPYRIGHT: (C)2012,JPO&INPIT |
