GROUT COMPOSITION WITH HIGH COMPRESSIVE STRENGTH BY ENHANCING DURABILITY, STRENGTH, AND CHEMICAL RESISTANCE OF WEAK GROUD AND A GROUTING METHOD USING THE SAME

摘要

PURPOSE: A grout composition and a grouting method using the same are provided to improve ground reinforcement when injected to the weak ground and a building foundation.;CONSTITUTION: A grout composition comprises a mixed grout liquid and a hardener. The mixed grout liquid comprises, based on 100 parts by weight of cement, 3-10 parts by weight of naphthalene, 5-15 parts by weight of metakaolin, 1-20 parts by weight of CSA, 1-10 parts by weight of hemihydrate gypsum, 5-10 parts by weight of calcium carbide, 1-3 parts by weight of sodium fluoride, 1-5 parts by weight of magnesium hydroxide, and 150-250 weight part of water. The hardener comprises, based on 100 parts by weight of cement, 100-200 parts by weight of sodium silicate and 80-140 parts by weight of water. The mixed grout liquid and the hardener are included in the weight ratio of 1: 0.55-0.91.;COPYRIGHT KIPO 2012