FLUIDIZING AGENT FOR PREPARING HIGH STRENGTH SOIL CEMENT SLURRY AND METHOD FOR PREPARING HIGH STRENGTH SOIL CEMENT SLURRY

摘要

PPROBLEM TO BE SOLVED: To provide a fluidizing agent for preparing a high strength soil cement slurry, which is capable of imparting a high fluidity to the prepared soil cement slurry, even if injection ratio of cement milk into soil is reduced so as to suppress production of construction sludge to be discarded, and is capable of yielding a high-strength cured product from the prepared soil cement slurry, particularly a high-strength cured product achieving a uniaxial compressive strength of 10 N/mmSP2/SPat material age of 28 days, and to provide a method for preparing the high-strength soil cement slurry using the fluidizing agent. PSOLUTION: The fluidizing agent for preparing the high strength soil cement slurry comprises 25-97 mass% component A, 2-40 mass% component B and 1-35 mass% component C (100% in total), provided that component A is a water-soluble vinyl copolymer that has a mass average molecular weight of 2,000-70,000 and has two specific structural units within the molecule, component B is a water-soluble vinyl copolymer that has a mass average molecular weight of 2,000-50,000 and is prepared by alkali hydrolysis of a copolymer of isobutylene and maleic anhydride, and component C is at least one chosen from sodium carbonate, potassium carbonate, sodium hydrogencarbonate and potassium hydrogencarbonate. PCOPYRIGHT: (C)2011,JPO&INPIT