초록

Fiber-reinforced geopolymeric resin having a mole ratio of SiO.sub.2 :Al.sub.2 O.sub.3 of at least equal to 6, and preferably at least equal to 10, adheres well to both concrete and steel, and is used to protectively cover infrastructures formed of steel-reinforced concrete and the like.

대표청구항 ▼

[ What is claimed is:] [9.] In a method for externally bonding a resin impregnated fiber reinforcement onto a substrate structure of concrete and steel, comprising applying said fiber reinforced resin to said substrate structure and curing said resin, the improvement whereinsaid resin is a geopolyme

[ What is claimed is:] [9.] In a method for externally bonding a resin impregnated fiber reinforcement onto a substrate structure of concrete and steel, comprising applying said fiber reinforced resin to said substrate structure and curing said resin, the improvement whereinsaid resin is a geopolymeric bonding resin with a mole ratio SiO.sub.2 :Al.sub.2 O.sub.3 of at least 6 and a mole ratio M.sub.2 O:Al.sub.2 O.sub.3 of at least 1.3, wherein M is at least one of Na and K, and contains a hydrated siliceous phase which has a nuclear magnetic resonance spectrum .sup.29 Si MASNMR with two major peaks at 98.+-.ppm and -110.+-.5 ppm.