PRODUCTION OF HIGH-FLOW PROPERTY CONCRETE

PURPOSE: To produce high-flow property concrete which allows rapid kneading of hydraulic cement, water, aggregate and admixture, reduces the electric power consumption to operate a kneading device, provides stable quality and does not impair the health of workers working in a closed space. CONSTITUT...

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Main Authors KAWAKAMI MASASHI, MIZUMACHI MINORU, TAMEISHI MASAHIRO, TASHIRO HIROMASA, MATSUMURA MAKOTO, KIMURA MASATOSHI
Format Patent
LanguageEnglish
Published 14.01.1997
Edition6
Subjects
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:PURPOSE: To produce high-flow property concrete which allows rapid kneading of hydraulic cement, water, aggregate and admixture, reduces the electric power consumption to operate a kneading device, provides stable quality and does not impair the health of workers working in a closed space. CONSTITUTION: Liquid polyacrylamide, such as aq. polyacrylamide soln. is added as a thickener to the high-flow property concrete formed by kneading the hydraulic cement, such as Portland cement, the water, the aggregate and the thickner at the time of kneading the concrete in the process for producing the concrete described above. As the preferable compounding ratios at the time of kneading the concrete, 25 to 70wt. parts of water and 2×10<-5> to 4×10<-3> pts.wt. aq. polaycrylamine soln. having a concn. of 30 to 50 solid content % per 100 pts.wt. hydraulic cement consisting of the Portland cement is adoptable.
Bibliography:Application Number: JP19950157845