CEMENT CONCRETE, SPRAYING MATERIAL AND SPRAYING METHOD USING THE SAME

PROBLEM TO BE SOLVED: To provide a cement concrete and a spraying material capable of reducing the amount of dust generated and the amount of a quick setting agent used and free of harmful effects such as the increase in rebound rate and the lowering of initial strength exhibiting property even when...

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Bibliographic Details
Main Authors ARAKI AKITOSHI, TERAJIMA ISAO, ISHIDA TSUMORU
Format Patent
LanguageEnglish
Published 08.03.2002
Edition7
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
EARTH DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GALLERIES
HYDRAULIC ENGINEERING
LARGE UNDERGROUND CHAMBERS
LIME, MAGNESIA
METALLURGY
MINING
REFRACTORIES
SHAFTS
SLAG
SOIL SHIFTING
TREATMENT OF NATURAL STONE
TUNNELS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PROBLEM TO BE SOLVED: To provide a cement concrete and a spraying material capable of reducing the amount of dust generated and the amount of a quick setting agent used and free of harmful effects such as the increase in rebound rate and the lowering of initial strength exhibiting property even when the amount of the quick setting agent used is reduced. SOLUTION: The cement concrete contains a hydrous clay mineral and calcium aluminates or further contains gypsum. The spraying material contains the cement concrete and a quick setting agent or further contains a setting accelerator such as carbonates, an alkali metallic sulfate, an aluminate or a hydroxide, a water reducing agent, a hydrophilic high molecular compound, a fine powder and a setting retarder.
Bibliography:Application Number: JP20000253057