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    PRECAST RESIDUAL FORM PANEL THAT SUPPRESSES SALT DAMAGE AND FROST DAMAGE OF THE PRECAST RESIDUAL FORM PANEL, AND MANUFACTURING METHOD OF THE PRECAST RESIDUAL FORM PANEL

    New search for: YAMASHITA JOJI

    To provide a manufacturing method of a precast residual form panel that can reliably suppress salt damage and frost damage.SOLUTION: A manufacturing method of a precast residual form panel includes: a molding step in which excess water containing calcium hydroxide eluted from a cement composition C fills in capillary gaps 9A and the like of a panel body 2, the entire back surface 2a of the panel body 2 is covered with the excess water containing calcium hydroxide, and the panel body 2 is molded; a coating step of covering the entire back surface 2a of the panel body 2 with a covering material 30; and a curing step of curing the cement composition C. By covering the entire back surface 2a of the panel body 2 with the coating material 30, it is possible to prevent the formation of a water-permeable fine powder layer L of calcium carbonate on the back surface 2a, and in the curing step, calcium hydroxide and silica in the cement composition C react chemically to form a waterproof layer 4 containing water-insoluble calcium silicate hydrate over the entire back surface 2a, and the capillary gaps 9 and the like are closed by the waterproof layer 4.SELECTED DRAWING: Figure 1

    【課題】塩害や凍害を確実に抑止できるプレキャスト製残存型枠パネルの製造方法を提供する。【解決手段】プレキャスト製残存型枠パネルの製造方法は、セメント組成物Ｃから溶出した水酸化カルシウムを含む余剰水がパネル本体２の毛細管空隙９Ａ等を埋め、パネル本体２の背面２ａ全域を、水酸化カルシウムを含む余剰水で覆い、パネル本体２を成形する成形工程と、パネル本体２の背面２ａ全域を被覆材３０で被覆する被覆工程と、セメント組成物Ｃを硬化させる養生工程とを含み、パネル本体２の背面２ａ全域を被覆材３０で被覆することで、背面２ａに炭酸カルシウムの透水性微紛層Ｌが形成されることを防止し、養生工程において、水酸化カルシウムとセメント組成物Ｃ中のシリカが化学反応し、水に不溶のケイ酸カルシウム水和物を含む防水層４が背面２ａ全域に形成されると共に、毛細管空隙９等が防水層４によって塞がれる構成をとる。【選択図】図１

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    PRECAST RESIDUAL FORM PANEL THAT SUPPRESSES SALT DAMAGE AND FROST DAMAGE OF THE PRECAST RESIDUAL FORM PANEL, AND MANUFACTURING METHOD OF THE PRECAST RESIDUAL FORM PANEL

    New search for: YAMASHITA JOJI

    To provide a manufacturing method of a precast residual form panel that can reliably suppress salt damage and frost damage.SOLUTION: A manufacturing method of a precast residual form panel includes: a molding step in which excess water containing calcium hydroxide eluted from a cement composition C fills in capillary gaps 9A and the like of a panel body 2, the entire back surface 2a of the panel body 2 is covered with the excess water containing calcium hydroxide, and the panel body 2 is molded; a coating step of covering the entire back surface 2a of the panel body 2 with a covering material 30; and a curing step of curing the cement composition C. By covering the entire back surface 2a of the panel body 2 with the coating material 30, it is possible to prevent the formation of a water-permeable fine powder layer L of calcium carbonate on the back surface 2a, and in the curing step, calcium hydroxide and silica in the cement composition C react chemically to form a waterproof layer 4 containing water-insoluble calcium silicate hydrate over the entire back surface 2a, and the capillary gaps 9 and the like are closed by the waterproof layer 4.SELECTED DRAWING: Figure 1

    【課題】塩害や凍害を確実に抑止できるプレキャスト製残存型枠パネルの製造方法を提供する。【解決手段】プレキャスト製残存型枠パネルの製造方法は、セメント組成物Ｃから溶出した水酸化カルシウムを含む余剰水がパネル本体２の毛細管空隙９Ａ等を埋め、パネル本体２の背面２ａ全域を、水酸化カルシウムを含む余剰水で覆い、パネル本体２を成形する成形工程と、パネル本体２の背面２ａ全域を被覆材３０で被覆する被覆工程と、セメント組成物Ｃを硬化させる養生工程とを含み、パネル本体２の背面２ａ全域を被覆材３０で被覆することで、背面２ａに炭酸カルシウムの透水性微紛層Ｌが形成されることを防止し、養生工程において、水酸化カルシウムとセメント組成物Ｃ中のシリカが化学反応し、水に不溶のケイ酸カルシウム水和物を含む防水層４が背面２ａ全域に形成されると共に、毛細管空隙９等が防水層４によって塞がれる構成をとる。【選択図】図１

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    PRECAST RESIDUAL FORM PANEL THAT SUPPRESSES SALT DAMAGE AND FROST DAMAGE OF THE PRECAST RESIDUAL FORM PANEL, AND MANUFACTURING METHOD OF THE PRECAST RESIDUAL FORM PANEL

    New search for: YAMASHITA JOJI

    To provide a manufacturing method of a precast residual form panel that can reliably suppress salt damage and frost damage.SOLUTION: A manufacturing method of a precast residual form panel includes: a molding step in which excess water containing calcium hydroxide eluted from a cement composition C fills in capillary gaps 9A and the like of a panel body 2, the entire back surface 2a of the panel body 2 is covered with the excess water containing calcium hydroxide, and the panel body 2 is molded; a coating step of covering the entire back surface 2a of the panel body 2 with a covering material 30; and a curing step of curing the cement composition C. By covering the entire back surface 2a of the panel body 2 with the coating material 30, it is possible to prevent the formation of a water-permeable fine powder layer L of calcium carbonate on the back surface 2a, and in the curing step, calcium hydroxide and silica in the cement composition C react chemically to form a waterproof layer 4 containing water-insoluble calcium silicate hydrate over the entire back surface 2a, and the capillary gaps 9 and the like are closed by the waterproof layer 4.SELECTED DRAWING: Figure 1

    【課題】塩害や凍害を確実に抑止できるプレキャスト製残存型枠パネルの製造方法を提供する。【解決手段】プレキャスト製残存型枠パネルの製造方法は、セメント組成物Ｃから溶出した水酸化カルシウムを含む余剰水がパネル本体２の毛細管空隙９Ａ等を埋め、パネル本体２の背面２ａ全域を、水酸化カルシウムを含む余剰水で覆い、パネル本体２を成形する成形工程と、パネル本体２の背面２ａ全域を被覆材３０で被覆する被覆工程と、セメント組成物Ｃを硬化させる養生工程とを含み、パネル本体２の背面２ａ全域を被覆材３０で被覆することで、背面２ａに炭酸カルシウムの透水性微紛層Ｌが形成されることを防止し、養生工程において、水酸化カルシウムとセメント組成物Ｃ中のシリカが化学反応し、水に不溶のケイ酸カルシウム水和物を含む防水層４が背面２ａ全域に形成されると共に、毛細管空隙９等が防水層４によって塞がれる構成をとる。【選択図】図１

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    Title:

    PRECAST RESIDUAL FORM PANEL THAT SUPPRESSES SALT DAMAGE AND FROST DAMAGE OF THE PRECAST RESIDUAL FORM PANEL, AND MANUFACTURING METHOD OF THE PRECAST RESIDUAL FORM PANEL

    Additional title:

    プレキャスト製残存型枠パネルの塩害及び凍害を抑止するプレキャスト製残存型枠パネル、及びプレキャスト製残存型枠パネルの製造方法

    Contributors:

    YAMASHITA JOJI (author)

    Publication date:

    2020-09-03

    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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