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A platform for research: civil engineering, architecture and urbanism
SHORT-FIBER REINFORCEMENT CONCRETE STRUCTURE USING CONTINUOUS FIBER-REINFORCED MATERIAL
To provide a concrete structure and a concrete floor slab with low manufacturing cost and super-high durability, taking advantage of the excellent properties of a continuous fiber-reinforced material that compensates for the mechanical shortcomings of the continuous fiber-reinforced material so as not to rust by using the continuous fiber-reinforced material as a main reinforcing material or a tension material and mixing a short fiber-reinforced material with concrete.SOLUTION: In a concrete structure in which a continuous fiber-reinforced material is disposed as a main reinforcing material or a tension material, a short fiber-reinforced material made of organic fibers is mixed in 0.5% or more of the total volume to make the continuous fiber-reinforced material rod-shaped or stranded, a ratio Lf/Gm of a fiber length Lf of the organic fiber of the short fiber-reinforced material to a maximum aggregate diameter Gm of the concrete compound is set to 1.2 to 3.7, and an aspect ratio Lf/De of a cross-sectional area of the organic fibers when the equivalent diameter converted into a circle is De is set to 30 to 69.SELECTED DRAWING: Figure 8
【課題】連続繊維補強材を主補強材又は緊張材とするとともに、短繊維補強材をコンクリートに混入することにより、連続繊維補強材の力学的な欠点を補って錆びるとのない連続繊維補強材の優れた特性を活かした製造コストが安く超高耐久なコンクリート構造物及びコンクリート床版を提供する。【解決手段】連続繊維補強材が主補強材又は緊張材として配設されたコンクリート構造物において、有機繊維からなる短繊維補強材を全体の体積に対して０．５％以上混入し、前記連続繊維補強材を、棒状又はより線状とし、前記短繊維補強材の前記有機繊維の繊維長Ｌｆとコンクリート配合の最大骨材径Ｇｍとの比Ｌｆ／Ｇｍを、１．２〜３．７とし、且つ、有機繊維の断面積を、円換算した等価直径をＤｅとしたときのアスペクト比Ｌｆ／Ｄｅを、３０〜６９とする。【選択図】図８
SHORT-FIBER REINFORCEMENT CONCRETE STRUCTURE USING CONTINUOUS FIBER-REINFORCED MATERIAL
To provide a concrete structure and a concrete floor slab with low manufacturing cost and super-high durability, taking advantage of the excellent properties of a continuous fiber-reinforced material that compensates for the mechanical shortcomings of the continuous fiber-reinforced material so as not to rust by using the continuous fiber-reinforced material as a main reinforcing material or a tension material and mixing a short fiber-reinforced material with concrete.SOLUTION: In a concrete structure in which a continuous fiber-reinforced material is disposed as a main reinforcing material or a tension material, a short fiber-reinforced material made of organic fibers is mixed in 0.5% or more of the total volume to make the continuous fiber-reinforced material rod-shaped or stranded, a ratio Lf/Gm of a fiber length Lf of the organic fiber of the short fiber-reinforced material to a maximum aggregate diameter Gm of the concrete compound is set to 1.2 to 3.7, and an aspect ratio Lf/De of a cross-sectional area of the organic fibers when the equivalent diameter converted into a circle is De is set to 30 to 69.SELECTED DRAWING: Figure 8
【課題】連続繊維補強材を主補強材又は緊張材とするとともに、短繊維補強材をコンクリートに混入することにより、連続繊維補強材の力学的な欠点を補って錆びるとのない連続繊維補強材の優れた特性を活かした製造コストが安く超高耐久なコンクリート構造物及びコンクリート床版を提供する。【解決手段】連続繊維補強材が主補強材又は緊張材として配設されたコンクリート構造物において、有機繊維からなる短繊維補強材を全体の体積に対して０．５％以上混入し、前記連続繊維補強材を、棒状又はより線状とし、前記短繊維補強材の前記有機繊維の繊維長Ｌｆとコンクリート配合の最大骨材径Ｇｍとの比Ｌｆ／Ｇｍを、１．２〜３．７とし、且つ、有機繊維の断面積を、円換算した等価直径をＤｅとしたときのアスペクト比Ｌｆ／Ｄｅを、３０〜６９とする。【選択図】図８
SHORT-FIBER REINFORCEMENT CONCRETE STRUCTURE USING CONTINUOUS FIBER-REINFORCED MATERIAL
連続繊維補強材を使用した短繊維補強コンクリート構造物
TANAKA YOSHIHIRO (author) / KODA EIJI (author) / TANAKA TORU (author) / KAKUMOTO SHU (author) / WATASE HIROSHI (author) / ISHII TOMOHIRO (author)
2020-10-22
Patent
Electronic Resource
Japanese
IPC:
E01D
BRIDGES
,
Brücken
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E04C
STRUCTURAL ELEMENTS
,
Bauelemente
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