SHORT FIBER-REINFORCED CONCRETE STRUCTURE USING CONTINUOUS FIBER-REINFORCED POLYMER MATERIAL

PROBLEM TO BE SOLVED: To provide a concrete structure and a concrete slab, which, by using a continuous fiber-reinforced polymer material as a main reinforcing material or a tendon, and by mixing a short fiber reinforcing material in concrete, compensate for the mechanical shortcomings of the contin...

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Bibliographic Details
Main Authors TANAKA, Yoshihiro, KODA, Eiji, TSUNOMOTO, Meguru, WATASE, Hiroshi, TANAKA, Toru, ISHII, Tomohiro
Format Patent
LanguageEnglish
Published 12.05.2022
Subjects
ARTIFICIAL STONE
BUILDING
BUILDING MATERIALS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
FIXED CONSTRUCTIONS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SLAG
STRUCTURAL ELEMENTS
TREATMENT OF NATURAL STONE
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Summary:PROBLEM TO BE SOLVED: To provide a concrete structure and a concrete slab, which, by using a continuous fiber-reinforced polymer material as a main reinforcing material or a tendon, and by mixing a short fiber reinforcing material in concrete, compensate for the mechanical shortcomings of the continuous fiber-reinforced polymer material, not rusting, and taking advantage of superior characteristics of the continuous fiber-reinforced polymer material, with low manufacturing cost and ultra-high durability.MEANS TO SOLVE THE PROBLEM: In a concrete structure, in which a continuous fiber-reinforced polymer material is 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 when an equivalent diameter De, which is a cross-sectional area of the organic fiber converted into a circle diameter, is 30 to 69.
Bibliography:Application Number: US202017601922