Method of lining steel profiled pipe and steel profiled tube

摘要

To provide a lining method capable of uniformly applying an FRP lining to the inner surface of a steel profile pipe.SOLUTION: In the step (S1, S2) of blasting the inner surface of a tube body of a steel deformed pipe to roughen it and applying a primer, and setting a glass mat on the inner surface of the roughened and primed tube main body (S 3, S 4) of impregnating the resin mat, a step (S 5, S 6) of setting a surface mat on the surface of the glass mat to impregnate the resin, and a step (S 7) of smoothly finishing the surface of the surface mat , By performing the resin impregnation of the glass mat and the surface mat by the hand lay-up method, the FRP lining can be applied more uniformly than the conventional lining method of spray-coating the mixture of the resin and the reinforcing fiber.(FIG.