A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
METHOD FOR MANUFACTURING CARBON DIOXIDE GAS FIXATION CONCRETE
To provide a method for manufacturing carbon dioxide gas fixation concrete which can reduce an emission amount of carbon dioxide gas compared to conventional methods.SOLUTION: A method for manufacturing carbon dioxide gas fixation concrete includes: a slurry manufacturing step of supplying carbon dioxide gas to a sludge liquid obtained by solid-liquid separation of a concrete sludge, and manufacturing a light calcium carbonate-containing slurry containing a light calcium carbonate which is precipitated in the sludge liquid and where the carbon dioxide gas is immobilized; a water content adjustment step of measuring and adjusting a water content of the light calcium carbonate-containing slurry; a hydraulic fluidized material adjustment step of adjusting a hydraulic fluidized material which contains a water content-adjusted light calcium carbonate-containing slurry having an adjusted water content of the light calcium carbonate-containing slurry, cement, an aggregate, and a precipitation inhibitor for inhibiting precipitation of the light calcium carbonate, and has the water content within a predetermined range; and a curing step of placing and curing the hydraulic fluidized material, to obtain the carbon dioxide gas fixation concrete.SELECTED DRAWING: Figure 1
【課題】従来に比べて炭酸ガスの排出量を削減できる炭酸ガス固定化コンクリートの製造方法を提供する。【解決手段】炭酸ガス固定化コンクリートの製造方法は、コンクリートスラッジを固液分離して得られるスラッジ液に対して炭酸ガスを供給し、前記スラッジ液中に析出させると共に前記炭酸ガスを固定化させた軽質炭酸カルシウムを含む、軽質炭酸カルシウム含有スラリーを製造するスラリー製造工程と、前記軽質炭酸カルシウム含有スラリーの含水率を測定して調整する含水率調整工程と、前記軽質炭酸カルシウム含有スラリーの含水率を調整した含水率調整済み軽質炭酸カルシウム含有スラリーと、セメントと、骨材と、前記軽質炭酸カルシウムの沈殿を抑制するための沈殿抑制剤とを含み、含水率が所定範囲内である、水硬性流動化物を調製する水硬性流動化物調製工程と、前記水硬性流動化物を打設して硬化させ、炭酸ガス固定化コンクリートを得る硬化工程とを有する。【選択図】図１
METHOD FOR MANUFACTURING CARBON DIOXIDE GAS FIXATION CONCRETE
To provide a method for manufacturing carbon dioxide gas fixation concrete which can reduce an emission amount of carbon dioxide gas compared to conventional methods.SOLUTION: A method for manufacturing carbon dioxide gas fixation concrete includes: a slurry manufacturing step of supplying carbon dioxide gas to a sludge liquid obtained by solid-liquid separation of a concrete sludge, and manufacturing a light calcium carbonate-containing slurry containing a light calcium carbonate which is precipitated in the sludge liquid and where the carbon dioxide gas is immobilized; a water content adjustment step of measuring and adjusting a water content of the light calcium carbonate-containing slurry; a hydraulic fluidized material adjustment step of adjusting a hydraulic fluidized material which contains a water content-adjusted light calcium carbonate-containing slurry having an adjusted water content of the light calcium carbonate-containing slurry, cement, an aggregate, and a precipitation inhibitor for inhibiting precipitation of the light calcium carbonate, and has the water content within a predetermined range; and a curing step of placing and curing the hydraulic fluidized material, to obtain the carbon dioxide gas fixation concrete.SELECTED DRAWING: Figure 1
【課題】従来に比べて炭酸ガスの排出量を削減できる炭酸ガス固定化コンクリートの製造方法を提供する。【解決手段】炭酸ガス固定化コンクリートの製造方法は、コンクリートスラッジを固液分離して得られるスラッジ液に対して炭酸ガスを供給し、前記スラッジ液中に析出させると共に前記炭酸ガスを固定化させた軽質炭酸カルシウムを含む、軽質炭酸カルシウム含有スラリーを製造するスラリー製造工程と、前記軽質炭酸カルシウム含有スラリーの含水率を測定して調整する含水率調整工程と、前記軽質炭酸カルシウム含有スラリーの含水率を調整した含水率調整済み軽質炭酸カルシウム含有スラリーと、セメントと、骨材と、前記軽質炭酸カルシウムの沈殿を抑制するための沈殿抑制剤とを含み、含水率が所定範囲内である、水硬性流動化物を調製する水硬性流動化物調製工程と、前記水硬性流動化物を打設して硬化させ、炭酸ガス固定化コンクリートを得る硬化工程とを有する。【選択図】図１
METHOD FOR MANUFACTURING CARBON DIOXIDE GAS FIXATION CONCRETE
炭酸ガス固定化コンクリートの製造方法
SEKI KENGO (author) / WATANABE KENZO (author) / MUKAI TOSHINARI (author) / TORII TAKESHI (author) / ONO KAYOKO (author)
2023-07-07
Patent
Electronic Resource
Japanese
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