GROUT FOR CONCRETE STRUCTURE AND GROUTING WORK

摘要

PROBLEM TO BE SOLVED: To obtain a grout excellent in low-temperature curability by mixing a heterocycle-containing compound having a specified structure with a polyepoxide and a compound that forms primary and/or secondary amino groups upon a reaction with water. ;SOLUTION: This grout comprises (A) a heterocycle-containing compound represented by formula I, II, or the like and having a viscosity of 5-20,000 mPa s at 25°C, (B) a polyepoxide, and (C) a mixture containing a heterocycle- containing compound represented by formula III and forming primary and/or secondary amino groups upon a reaction with water and a ketimine compound represented by formula IV. The respective components are used in such amounts that 0.01-1.0 heterocyclic group of component A is present per electrophilic group of component B, and 0.7-1.3 active hydrogen atoms are present per epoxy group of component B. In the formulae, n is 1-10; X1, Y1, and Z1 are each oxygen or sulfur; R1 is hydrogen or a residue of a cyclic ether compound; R2 is a 2-10C hydrocarbon group; R5, R6, R10, and R11 are each a 1-6C alkyl or the like; R3 is a polyepoxide residue or the like; and R12 is an amino compound residue or the like.;COPYRIGHT: (C)2001,JPO