Method for rehabilitation of fire-extinguishing piping inside tunnel and lining material inside tunnel

摘要

To provide a piping repairing technique with good quality stability and workability.SOLUTION: The tunnel inner fire extinguishing pipe rehabilitation lining material 100 of the present invention is a tubular lining material for forming a rehabilitation pipe inside an existing metal fire-extinguishing pipe in a tunnel, And a reinforcing fiber layer 210 including a reinforcing fiber base material impregnated with a curable resin composition giving a resin molded article having rust prevention properties. Preferably, the reinforcing layer 210 includes a reinforcing fiber base material and two resin absorbent base materials laminated with the reinforcing fiber base material interposed therebetween.BACKGROUND OF THE INVENTION