A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CEMENT ADDITIVE, CEMENT HARDNESS IMPROVER, CEMENT COMPOSITION, AND HARDNESS IMPROVEMENT METHOD OF CEMENT COMPOSITION
To provide a cement additive capable of remarkably improving the hardness of a cement composition cured product for a long time.SOLUTION: A cement additive of the present invention contains a component A and a component B. The component A is a compound represented by the following general formula (1). The component B is a compound comprising a structure that has a weight-average molecular weight of 3000 or larger and in which alkylene oxides of 5 moles or more are added to polyalcohol of 1 mole. In the general formula (1), R1, R2, R3 and R4 each independently denote a hydrogen atom or an alkyl group of the number of carbon atoms of 1 to 18.SELECTED DRAWING: None
【課題】セメント組成物の硬化物の強度を長期にわたって顕著に向上させ得るセメント用添加剤を提供する。【解決手段】本発明のセメント用添加剤は、下記のＡ成分およびＢ成分を含む：Ａ成分：下記一般式（１）で表される化合物；Ｂ成分：重量平均分子量が３０００より大きく多価アルコール１モルにアルキレンオキシドが５モル以上付加された構造を有する化合物；一般式（１）中、Ｒ１、Ｒ２、Ｒ３およびＲ４は、それぞれ独立に、水素原子または炭素原子数１〜１８のアルキル基である。【選択図】なし
CEMENT ADDITIVE, CEMENT HARDNESS IMPROVER, CEMENT COMPOSITION, AND HARDNESS IMPROVEMENT METHOD OF CEMENT COMPOSITION
To provide a cement additive capable of remarkably improving the hardness of a cement composition cured product for a long time.SOLUTION: A cement additive of the present invention contains a component A and a component B. The component A is a compound represented by the following general formula (1). The component B is a compound comprising a structure that has a weight-average molecular weight of 3000 or larger and in which alkylene oxides of 5 moles or more are added to polyalcohol of 1 mole. In the general formula (1), R1, R2, R3 and R4 each independently denote a hydrogen atom or an alkyl group of the number of carbon atoms of 1 to 18.SELECTED DRAWING: None
【課題】セメント組成物の硬化物の強度を長期にわたって顕著に向上させ得るセメント用添加剤を提供する。【解決手段】本発明のセメント用添加剤は、下記のＡ成分およびＢ成分を含む：Ａ成分：下記一般式（１）で表される化合物；Ｂ成分：重量平均分子量が３０００より大きく多価アルコール１モルにアルキレンオキシドが５モル以上付加された構造を有する化合物；一般式（１）中、Ｒ１、Ｒ２、Ｒ３およびＲ４は、それぞれ独立に、水素原子または炭素原子数１〜１８のアルキル基である。【選択図】なし
CEMENT ADDITIVE, CEMENT HARDNESS IMPROVER, CEMENT COMPOSITION, AND HARDNESS IMPROVEMENT METHOD OF CEMENT COMPOSITION
セメント用添加剤、セメント用強度向上剤、セメント組成物、およびセメント組成物の強度向上方法
OSAWA MASAMI (author)
2020-10-29
Patent
Electronic Resource
Japanese
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