CEMENT COMPOSITION AND HYDRAULIC COMPOSITION
Provided are a cement composition that contains a crushed product of a sintered material as a cement admixture, that has excellent strength development, and that can reduce the total amount of carbon dioxide released by absorbing and fixing a large amount of carbon dioxide during the curing process,...
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Main Authors | , , , |
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Format | Patent |
Language | English French Japanese |
Published |
20.06.2024
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Subjects | |
Online Access | Get full text |
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Summary: | Provided are a cement composition that contains a crushed product of a sintered material as a cement admixture, that has excellent strength development, and that can reduce the total amount of carbon dioxide released by absorbing and fixing a large amount of carbon dioxide during the curing process, and a hydraulic composition containing said cement composition. A cement composition containing (A) a powdered cement-containing material containing a crushed product of a sintered material that contains (i) a Portland cement or a Portland cement clinker crushed product and (ii) 2CaO∙SiO2 and 2CaO∙Al2O3∙SiO2 and that satisfies conditions (1) and (2) and (B) (iii) an amine. (1) The amount of the 2CaO∙Al2O3∙SiO2 per 100 mass parts of the 2CaO∙SiO2 is 10-100 mass parts. (2) The sintered material is free of 3CaO∙Al2O3 or contains the same in an amount of 15 mass parts or less per 100 mass parts of the 2CaO∙SiO2.
L'invention concerne une composition de ciment qui contient un produit broyé d'un matériau fritté en tant qu'adjuvant de ciment, qui a un excellent développement de résistance, et qui peut réduire la quantité totale de dioxyde de carbone libéré par absorption et fixation d'une grande quantité de dioxyde de carbone pendant le processus de durcissement, et une composition hydraulique contenant ladite composition de ciment. Une composition de ciment contient (A) un matériau contenant du ciment en poudre contenant un produit broyé d'un matériau fritté qui contient (i) un ciment Portland ou un produit broyé de clinker de ciment Portland et (ii) 2CaO∙SiO2 et 2CaO∙Al2O3∙SiO2 et qui satisfait les conditions (1) et (2) et (B) (iii) une amine. (1) la quantité de 2CaO∙Al2O3∙SiO2 pour 100 parties en masse de 2CaO∙SiO2 est de 10 à 100 parties en masse. (2) le matériau fritté est exempt de 3CaO∙Al2O3 ou contient celui-ci à hauteur de 15 parties en masse ou moins pour 100 parties en masse du 2CaO∙SiO2.
セメント混和材として焼成物の粉砕物を含み、強度発現性に優れ、かつ、養生過程において多量の二酸化炭素を吸収、固定化することにより、排出される二酸化炭素の総量を低減することができるセメント組成物及び該セメント組成物を含む水硬性組成物を提供する。 (A)(i)ポルトランドセメント又はポルトランドセメントクリンカ粉砕物と、(ii)2CaO・SiO2及び2CaO・Al2O3・SiO2を含む焼成物の粉砕物であって、以下の(1)~(2)の条件を満たす焼成物の粉砕物、を含む粉末状セメント含有物、並びに、(B)(iii)アミンを含むセメント組成物。 (1)上記2CaO・SiO2100質量部に対する上記2CaO・Al2O3・SiO2の量が10~100質量部であること (2)上記焼成物が3CaO・Al2O3を含まない、又は、上記2CaO・SiO2100質量部に対して15質量部以下の量で含むこと |
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Bibliography: | Application Number: WO2023JP44385 |