WET SPRAYED MORTAR

PURPOSE:To perform construction work safely and surely even in the case that sprayed mortar is passed through a long hose along a cliff where there is no suitable footing by putting proper amount of water reducing agent and thickener into the sprayed mortar. CONSTITUTION:Sprayed mortar prepared by m...

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Bibliographic Details
Main Authors KIUCHI KAZUO, UMISHIO CHIAKI, ANDO TETSUYA, SAITO KENZO
Format Patent
LanguageEnglish
Published 18.07.1995
Edition6
Subjects
ARTIFICIAL STONE
BUILDING
BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FORMS
FOUNDATIONS
HANDLING BUILDING MATERIALS ON THE SITE
HYDRAULIC ENGINEERING
LIME, MAGNESIA
METALLURGY
REFRACTORIES
REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS
SCAFFOLDING
SHUTTERING
SLAG
SOIL SHIFTING
TREATMENT OF NATURAL STONE
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:PURPOSE:To perform construction work safely and surely even in the case that sprayed mortar is passed through a long hose along a cliff where there is no suitable footing by putting proper amount of water reducing agent and thickener into the sprayed mortar. CONSTITUTION:Sprayed mortar prepared by mixing cement, aggregate, and water is conveyed pneumatically through a hose 3 and sprayed from the end of a nozzle 2 to form a mortar layer over a cliff 4 or the like. The mortar contains water reducing agent of 0.1-1.0wt.% and thickener of 0.001-0.01wt.% with respect to cement. Or water reducing agent of 0.01-1.0wt.% and thickener of 0.0005-0.01wt.% may be put into the mortar. By this method, even at a spot far from a kneading.spraying machine 1 and even with the long hose 3, construction work can be performed without causing separation of material and without generating pulsation of the hose 3.
Bibliography:Application Number: JP19920154107