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CONCRETE CONSTRUCTION METHOD AND CRACK PREVENTION MEMBER
To provide a concrete construction method and a crack prevention member capable of preventing creation of crack in an area adjacent to a corner of a side wall of newly placed concrete.SOLUTION: A concrete construction method comprises a step of preparing a crack prevention member 20 provided with a body 22 having an outer wall surface 22a arcuately swollen and an inwardly concave inner wall surface 22b positioned opposite to the outer wall surface 22a at a site placing concrete in a substrate 12 surrounded by a side wall having a corner part 10a projecting inward. Subsequently, the method proceeds a step of burying a crack prevention member 20 arranged in a way of surrounding the vicinity of a top part of the corner part 10a with the inner wall surface 22b of the body 22 in ready mixed concrete 16n, before or after pouring the ready mixed concrete 16n onto the substrate 12.SELECTED DRAWING: Figure 1
【課題】新設コンクリートの、側壁の角部分に近い領域に、ひび割れが発生するのを容易に抑制できるコンクリート施工方法及びひび割れ抑制部材を提供する。【解決手段】内向きに突出した角部分10aを有する側壁に囲まれた下地12にコンクリートを打設する現場において、円弧状に膨出した外壁面22aと、外壁面22aに対向するように内向きに凹んだ内壁面22bとを有する本体22部を備えたひび割れ抑制部材20を用意する。次に、生コンクリート16nを下地12の上に流し込む前又は後に、ひび割れ抑制部材20を、角部分10aの頂部近傍を本体部22の内壁面22bで囲むように配して生コンクリート16の中に埋設する。【選択図】図1
CONCRETE CONSTRUCTION METHOD AND CRACK PREVENTION MEMBER
To provide a concrete construction method and a crack prevention member capable of preventing creation of crack in an area adjacent to a corner of a side wall of newly placed concrete.SOLUTION: A concrete construction method comprises a step of preparing a crack prevention member 20 provided with a body 22 having an outer wall surface 22a arcuately swollen and an inwardly concave inner wall surface 22b positioned opposite to the outer wall surface 22a at a site placing concrete in a substrate 12 surrounded by a side wall having a corner part 10a projecting inward. Subsequently, the method proceeds a step of burying a crack prevention member 20 arranged in a way of surrounding the vicinity of a top part of the corner part 10a with the inner wall surface 22b of the body 22 in ready mixed concrete 16n, before or after pouring the ready mixed concrete 16n onto the substrate 12.SELECTED DRAWING: Figure 1
【課題】新設コンクリートの、側壁の角部分に近い領域に、ひび割れが発生するのを容易に抑制できるコンクリート施工方法及びひび割れ抑制部材を提供する。【解決手段】内向きに突出した角部分10aを有する側壁に囲まれた下地12にコンクリートを打設する現場において、円弧状に膨出した外壁面22aと、外壁面22aに対向するように内向きに凹んだ内壁面22bとを有する本体22部を備えたひび割れ抑制部材20を用意する。次に、生コンクリート16nを下地12の上に流し込む前又は後に、ひび割れ抑制部材20を、角部分10aの頂部近傍を本体部22の内壁面22bで囲むように配して生コンクリート16の中に埋設する。【選択図】図1
CONCRETE CONSTRUCTION METHOD AND CRACK PREVENTION MEMBER
コンクリート施工方法及びひび割れ抑制部材
YAMAZAKI YOSHIKIYO (Autor:in) / ITO HAJIME (Autor:in)
17.06.2021
Patent
Elektronische Ressource
Japanisch
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