Concrete composition

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United States of America Patent

PATENT NO 5352290
SERIAL NO

07902925

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A concrete composition which has superior fluidity and filling property and from which a concrete structure having high quality and durability and being excellent in resistance to freezing and thawing can be made without compaction by vibration. The composition comprises cement, water, aggregate, at least one admixture selected from the group consisting of a water reducing agent, an air entraining agent, an air entraining water reducing agent and a superplasticizer, and at least one viscosity improver of a cellulose type of viscosity improver having a low foaming property which shows specific viscosity and an acrylic type of viscosity improver having a low viscosity which shows specific viscosity in a specified amount.

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Patent Owner(s)

Patent OwnerAddress
JDC CORPORATION A CORP OF JAPAN9-9 AKASAKA 4-CHOME MINATO-KU TOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoshino, Shohei Tokyo, JP 4 56
Sawara, Haruya Tokyo, JP 2 80
Shoji, Yoshiyuki Tokyo, JP 30 180
Takeshita, Haruyuki Tokyo, JP 1 37

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