CARBONATION CURING METHOD FOR PRECAST CONCRETE MEMBER

To provide a carbonation curing method for concrete members that can be performed even at a factory or a construction site and enables CO2 to be efficiently immobilized using a simple facility.SOLUTION: In a carbonation curing method for cement hardened bodies, the cement hardened bodies are covered...

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Bibliographische Detailangaben
Hauptverfasser:	SHOJI AKIO, WATASE HIROSHI, AZUMA YOSUKE
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY PERFORMING OPERATIONS REFRACTORIES SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER SLAG TRANSPORTING TREATMENT OF NATURAL STONE WORKING CEMENT, CLAY, OR STONE
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Beschreibung
Zusammenfassung:	To provide a carbonation curing method for concrete members that can be performed even at a factory or a construction site and enables CO2 to be efficiently immobilized using a simple facility.SOLUTION: In a carbonation curing method for cement hardened bodies, the cement hardened bodies are covered with an airtight curing sheet 2, and a gas including carbon dioxide is blown into the curing sheet 2 to produce calcium carbonate in the cement hardened bodies 1, immobilizing carbon dioxide. The curing sheet 2 is a heat-retentive sheet 2' with insulation capabilities. The heat of hydration of the cement hardened bodies 1 is used to promote the calcium carbonate producing reaction.SELECTED DRAWING: Figure 1 【課題】工場や建設現場でも実行可能な簡易な施設で効率的にＣＯ２を固定化させることができるコンクリート部材の炭酸化養生方法を提供する。【解決手段】セメント硬化体の炭酸化養生方法において、気密性を有する養生シート２でセメント硬化体を覆い、養生シート２内に二酸化炭素を含むガスを吹き込んでセメント硬化体１中に炭酸カルシウムを生成して二酸化炭素を固定化する。また、養生シート２は断熱性を有する保温シート２’であり、セメント硬化体１の水和熱で炭酸カルシウムを生成する反応を促進する。【選択図】図１