HARDENER FOR GROUT USED FOR CONSOLIDATING GROUND

PURPOSE:To obtain a hardener for a liquid glass-based grout used for stabilizing soft ground which is improved in storage stability and easy to handle in site by dissolving an alkali acid sulfate and a water-soluble alkaline earth metal salt in water and solidifying it to have a prescribed water con...

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Bibliographische Detailangaben
Hauptverfasser:	SUO ISAMU, KOSUGE NOBUO
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SLAG SOIL SHIFTING TREATMENT OF NATURAL STONE UNDERGROUND OR UNDERWATER STRUCTURES
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Beschreibung
Zusammenfassung:	PURPOSE:To obtain a hardener for a liquid glass-based grout used for stabilizing soft ground which is improved in storage stability and easy to handle in site by dissolving an alkali acid sulfate and a water-soluble alkaline earth metal salt in water and solidifying it to have a prescribed water content. CONSTITUTION:A hardener for a liquid glass-based grout which contains an alkali metal silicate such as lithium silicate, sodium silicate or potassium silicate, and is injected into soft ground to consolidate it for stabilization is obtained by heating an aqueous solution of an alkali acid sulfate (e.g. KHSO4 or NaHSO4) and a water-soluble alkaline earth metal salt (e.g. MgSO4) (weight ratio: 10/1 to 2/1, preferably 8/1 to 4/1) to about 150 deg.C at atmospheric pressure and dehydrating the solution by heating so that it becomes a solid with a water content of 20wt.% or less.