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    METHOD FOR MANUFACTURING PRECAST CONCRETE MEMBER, AND PRECAST CONCRETE MEMBER

    New search for: KORENAGA TAKEYOSHI
    New search for: YAMAMOTO YOSHIKI
    New search for: IMAI KAZUMASA
    New search for: SATO NAOKO

    PROBLEM TO BE SOLVED: To provide a method for manufacturing a precast concrete member, and a precast concrete member that can considerably reduce cracks generated at the time of the strength development of concrete.SOLUTION: A method for manufacturing a precast concrete member 1 comprises the steps of: laying a sheath tube 7 in a form and placing concrete into the form; performing primary curing of the placed concrete; performing secondary curing of the concrete, in a state where a compressive force is introduced to a hardening body of the concrete, using a tendon inserted into the sheath tube 7; releasing the compressive force; and arranging a reinforcing bar 8 inside the sheath tube 7 and filling a filler 9 thereinto.

    【課題】コンクリートの強度発現時に生じる微細なひび割れを大幅に削減することを可能としたプレキャストコンクリート部材の製造方法およびプレキャストコンクリート部材を提供する。【解決手段】型枠にシース管７を配管するとともに型枠内にコンクリートを打設する工程と、打設されたコンクリートを一次養生する工程と、シース管７に挿入された緊張材を利用して前記コンクリートの硬化体に圧縮力を導入した状態でコンクリートを二次養生する工程と、圧縮力を解除する工程と、シース管７内に鉄筋８を配筋するとともに充填材９を充填する工程とを備えるプレキャストコンクリート部材１の製造方法。【選択図】図１

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    METHOD FOR MANUFACTURING PRECAST CONCRETE MEMBER, AND PRECAST CONCRETE MEMBER

    New search for: KORENAGA TAKEYOSHI
    New search for: YAMAMOTO YOSHIKI
    New search for: IMAI KAZUMASA
    New search for: SATO NAOKO

    PROBLEM TO BE SOLVED: To provide a method for manufacturing a precast concrete member, and a precast concrete member that can considerably reduce cracks generated at the time of the strength development of concrete.SOLUTION: A method for manufacturing a precast concrete member 1 comprises the steps of: laying a sheath tube 7 in a form and placing concrete into the form; performing primary curing of the placed concrete; performing secondary curing of the concrete, in a state where a compressive force is introduced to a hardening body of the concrete, using a tendon inserted into the sheath tube 7; releasing the compressive force; and arranging a reinforcing bar 8 inside the sheath tube 7 and filling a filler 9 thereinto.

    【課題】コンクリートの強度発現時に生じる微細なひび割れを大幅に削減することを可能としたプレキャストコンクリート部材の製造方法およびプレキャストコンクリート部材を提供する。【解決手段】型枠にシース管７を配管するとともに型枠内にコンクリートを打設する工程と、打設されたコンクリートを一次養生する工程と、シース管７に挿入された緊張材を利用して前記コンクリートの硬化体に圧縮力を導入した状態でコンクリートを二次養生する工程と、圧縮力を解除する工程と、シース管７内に鉄筋８を配筋するとともに充填材９を充填する工程とを備えるプレキャストコンクリート部材１の製造方法。【選択図】図１

    Access

    Download

    METHOD FOR MANUFACTURING PRECAST CONCRETE MEMBER, AND PRECAST CONCRETE MEMBER

    New search for: KORENAGA TAKEYOSHI
    New search for: YAMAMOTO YOSHIKI
    New search for: IMAI KAZUMASA
    New search for: SATO NAOKO

    PROBLEM TO BE SOLVED: To provide a method for manufacturing a precast concrete member, and a precast concrete member that can considerably reduce cracks generated at the time of the strength development of concrete.SOLUTION: A method for manufacturing a precast concrete member 1 comprises the steps of: laying a sheath tube 7 in a form and placing concrete into the form; performing primary curing of the placed concrete; performing secondary curing of the concrete, in a state where a compressive force is introduced to a hardening body of the concrete, using a tendon inserted into the sheath tube 7; releasing the compressive force; and arranging a reinforcing bar 8 inside the sheath tube 7 and filling a filler 9 thereinto.

    【課題】コンクリートの強度発現時に生じる微細なひび割れを大幅に削減することを可能としたプレキャストコンクリート部材の製造方法およびプレキャストコンクリート部材を提供する。【解決手段】型枠にシース管７を配管するとともに型枠内にコンクリートを打設する工程と、打設されたコンクリートを一次養生する工程と、シース管７に挿入された緊張材を利用して前記コンクリートの硬化体に圧縮力を導入した状態でコンクリートを二次養生する工程と、圧縮力を解除する工程と、シース管７内に鉄筋８を配筋するとともに充填材９を充填する工程とを備えるプレキャストコンクリート部材１の製造方法。【選択図】図１

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    Title:

    METHOD FOR MANUFACTURING PRECAST CONCRETE MEMBER, AND PRECAST CONCRETE MEMBER

    Additional title:

    プレキャストコンクリート部材の製造方法およびプレキャストコンクリート部材

    Contributors:

    KORENAGA TAKEYOSHI (author) / YAMAMOTO YOSHIKI (author) / IMAI KAZUMASA (author) / SATO NAOKO (author)

    Publication date:

    2015-07-30

    Type of media:

    Patent

    Type of material:

    Electronic Resource

    Language:

    Japanese

    Classification:

    IPC:  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

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