A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT HARDENING BODY AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a cement hardening body containing a powdery material other than Portland cement, especially one having less discharge amount of carbon dioxide during manufacturing of powder than Portland cement, but capable of largely reducing the total amount of discharged carbon dioxide by absorbing a large amount of carbon dioxide in a hardening process even when hardening is conducted at a room temperature (about 20°C), for example not at high temperature such as 60°C, and having a small percentage of reduction of compressive strength based on the case that total amount of the powder material consists of Portland cement.SOLUTION: There is provided a cement hardening body by carbonization of a hardening body of a cement mixing product containing (A) a powdery cement composition that contains a ground product of a burned product containing CAS of 10 to 200 pts.mass based on 100 pts.mass of CS and having the content of CA of 20 pts.mass or less, and Portland cement, (B) water and (C) an aggregate.SELECTED DRAWING: None
【課題】本発明は、ポルトランドセメント以外の粉末材料（特に、ポルトランドセメントに比べて、粉末の製造時の二酸化炭素の排出量が少ないもの）を含むものの、例えば、６０℃等の高温ではなく、常温（２０℃程度）で養生を行った場合であっても、養生過程において多量の二酸化炭素を吸収することにより、排出される二酸化炭素の総量を大幅に低減することができ、かつ、粉末材料の全量がポルトランドセメントからなる場合を基準としたときに、圧縮強さの低下の割合が小さいセメント質硬化体を提供することを目的とする。【解決手段】（Ａ）Ｃ２Ｓ１００質量部に対して、Ｃ２ＡＳを１０〜２００質量部含有し、かつ、Ｃ３Ａの含有量が２０質量部以下である焼成物の粉砕物と、ポルトランドセメントを含む粉末状セメント組成物と、（Ｂ）水と、（Ｃ）骨材、の各材料を含むセメント混練物の硬化体を、炭酸化してなることを特徴とするセメント質硬化体を、提供する。【選択図】なし
CEMENT HARDENING BODY AND MANUFACTURING METHOD THEREFOR
PROBLEM TO BE SOLVED: To provide a cement hardening body containing a powdery material other than Portland cement, especially one having less discharge amount of carbon dioxide during manufacturing of powder than Portland cement, but capable of largely reducing the total amount of discharged carbon dioxide by absorbing a large amount of carbon dioxide in a hardening process even when hardening is conducted at a room temperature (about 20°C), for example not at high temperature such as 60°C, and having a small percentage of reduction of compressive strength based on the case that total amount of the powder material consists of Portland cement.SOLUTION: There is provided a cement hardening body by carbonization of a hardening body of a cement mixing product containing (A) a powdery cement composition that contains a ground product of a burned product containing CAS of 10 to 200 pts.mass based on 100 pts.mass of CS and having the content of CA of 20 pts.mass or less, and Portland cement, (B) water and (C) an aggregate.SELECTED DRAWING: None
【課題】本発明は、ポルトランドセメント以外の粉末材料（特に、ポルトランドセメントに比べて、粉末の製造時の二酸化炭素の排出量が少ないもの）を含むものの、例えば、６０℃等の高温ではなく、常温（２０℃程度）で養生を行った場合であっても、養生過程において多量の二酸化炭素を吸収することにより、排出される二酸化炭素の総量を大幅に低減することができ、かつ、粉末材料の全量がポルトランドセメントからなる場合を基準としたときに、圧縮強さの低下の割合が小さいセメント質硬化体を提供することを目的とする。【解決手段】（Ａ）Ｃ２Ｓ１００質量部に対して、Ｃ２ＡＳを１０〜２００質量部含有し、かつ、Ｃ３Ａの含有量が２０質量部以下である焼成物の粉砕物と、ポルトランドセメントを含む粉末状セメント組成物と、（Ｂ）水と、（Ｃ）骨材、の各材料を含むセメント混練物の硬化体を、炭酸化してなることを特徴とするセメント質硬化体を、提供する。【選択図】なし
CEMENT HARDENING BODY AND MANUFACTURING METHOD THEREFOR
セメント質硬化体およびその製造方法
AKI TOMOKO (author) / KUBOTA OSAMU (author) / HIRAO HIROSHI (author)
2016-04-07
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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