MANUFACTURING METHOD OF HYDRAULIC HARDENED BODY AND CEMENT COMPOSITION FOR CARBONATION CURING

• Main Authors: TORII TAKESHI, WATANABE KENZO, MORIYAMA YOSHINORI, SEKI KENGO, SAKATA NOBORU, MUKAI TOSHINARI, SAKAI GORO, TAKAMURA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

To provide a manufacturing method of a hydraulic hardened body and a cement composition for carbonation curing, having excellent workability, less carbon dioxide gas discharge on manufacturing, having carbon dioxide gas fixation function, and exhibiting good strength.SOLUTION: A manufacturing method of a hydraulic hardened body of the present invention is a manufacturing method of a hydraulic hardened body, including manufacturing a hydraulic hardened body by hardening and carbonation curing a cement composition including water, a cement, calcium hydroxide, and a setting retarder, wherein the cement composition includes 5 pts.mass or over and 80 pts.mass or under of the calcium hydroxide to 100 pts.mass of a total amount of the cement and the calcium hydroxide.SELECTED DRAWING: None 【課題】作業性に優れ、製造時の炭酸ガス排出量が少なく、炭酸ガス固定化機能を有し、強度が良好な水硬性硬化体の製造方法および炭酸化養生用セメント組成物を提供する。【解決手段】本発明の水硬性硬化体の製造方法は、水と、セメントと、水酸化カルシウムと、凝結遅延剤と、を含有するセメント組成物を、硬化および炭酸化養生し、水硬性硬化体を製造する、水硬性硬化体の製造方法であって、前記セメント組成物は、前記水酸化カルシウムを、前記セメントと前記水酸化カルシウムの合計量の１００質量部に対して、５質量部以上８０質量部以下含有する。【選択図】なし