Short fiber-reinforced concrete structure using continuous fiber-reinforced polymer material

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United States of America Patent

PATENT NO 11753823
APP PUB NO 20220145626A1
SERIAL NO

17601922

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Abstract

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A concrete structure includes a continuous fiber-reinforced polymer material arranged as a main reinforcing material or a tendon. A short fiber reinforcing material consisting of an organic fiber is mixed in 0.5% or more with respect to an entire volume. The continuous fiber-reinforced polymer material is shaped like a rod or a stranded wire. A ratio Lf/Gm between a fiber length Lf of the organic fiber of the short fiber reinforcing material and a maximum aggregate diameter Gm of a concrete composition is 1.2 to 3.7, and an aspect ratio Lf/De, in which De is an equivalent diameter that is a cross-sectional area of the organic fiber converted into a circle diameter, is 30 to 69.

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Patent Owner(s)

Patent OwnerAddress
TOKYO ROPE MFG CO LTD3-6-2 NIHONBASHI CHUO-KU TOKYO 103-8306
ORIENTAL SHIRAISHI CORPORATION5-6-52 TOYOSU KOTO-KU TOKYO 135-0061

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ishii, Tomohiro Tokyo, JP 104 1127
Koda, Eiji Tokyo, JP 6 47
Tanaka, Toru Tokyo, JP 237 1692
Tanaka, Yoshihiro Tokyo, JP 125 1284
Tsunomoto, Meguru Tokyo, JP 2 3
Watase, Hiroshi Tokyo, JP 6 88

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