SOIL STABILIZATION CHEMICAL AND GROUND STABILIZATION TECHNIQUE USING THE SAME

摘要

PURPOSE: To improve the compressive strength by mixing a solution A contg. a hydraulic cement and a liquid B contg. an alumina cement and II type anhydrous gypsum in a predetermined mixing ratio, the liquids A and B each having a particular Blaine value, and grouping the mixture into the ground. ;CONSTITUTION: Suitable amts. of a water reducing agent, dispersant and the like are incorporated into about 40 to 300kg of a hydraulic cement such as a portland cement having a Blaine value of 5000 to 18000cm²/g. Water is added thereto, and the mixture is kneaded to prepare an about 200 liters of a liquid A. Separately, water is added to about 15 to 150kg in total of a mixture of 1 pt.wt. alumina cement having a Blaine value of not less than 4000cm²/g with 0.5 to 1.5 pts.wt. II type anhydrous gypsum having a Blaine value of not less than 5000cm²/g, and the mixture is kneaded to prepare about 200 liters of a liquid B. A soil stabilization chemical of 100 pts.wt. hydraulic cement with 13 to 50 pts.wt. total of the alumina cement and the II type anhydrous gypsum being incorporated thereinto is grouted into the ground, followed by hardening for 5 to 30min to stabilize the ground.;COPYRIGHT: (C)1996,JPO