EXPANSIBLE GROUT ADMIXTURE, GROUT COMPOSITION HAVING EXPANSIBLE GROUT ADMIXTURE AND GROUTING METHOD USING THE GROUT COMPOSITION

摘要

PURPOSE: A grouting method using a grout composition is provided to ensure excellent injection capability, durability, ground improvement effect and high water resistance by producing a cement-based grout admixture. CONSTITUTION: A grouting method using a grout composition comprises the steps of: injecting an accelerating agent into pores in the ground by a low pressure injector after drilling the ground; injecting a finishing material into pores in which the accelerating agent is injected by the low pressure injector to condition the ground. The accelerating agent includes the grout composition and a silicate glass admixture consisting of 35-45 parts by weight of silicate glass, 20-30 parts by weight of water based on 100 parts by weight of the grout composition in a volume ratio of 1:1.