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HYDRAULIC COMPOSITION, HYDRAULIC MORTAR, CURED BODY THEREOF, AND MANUFACTURING METHOD OF HYDRAULIC COMPOSITION
To provide a hydraulic composition capable of providing a cured body having excellent effects on reduction of initial shrinkage amount, and having an appropriate air amount even when a shrinkage reduction agent stored in a prescribed time is used.SOLUTION: There is provided a hydraulic composition containing a shrinkage reduction agent containing an alkylene oxide adduct represented by the following general formula (1) and polypropylene glycol having weight average molecular weight Mw1 calculated from a hydroxyl group value measured according to JIS K1557-1:2007 of 1300 to 5500, and a hydraulic component, in which a mass ratio of the polypropylene glycol to total of the alkylene oxide adduct and the polypropylene glycol, Ris 4 to 17 mass%, and the weight average molecular weight Mw1 and the mass ratio Rsatisfy the following formula (α1). RO-[(PO)/(EO)]-H (1) 300R+Mw1≥4000 (α1)SELECTED DRAWING: Figure 1
【課題】初期収縮量の低減について優れた効果を有し、且つ、一定期間貯蔵した収縮低減剤を用いた場合も適度な空気量を有する硬化体を得ることが可能な水硬性組成物を提供することを目的とする。【解決手段】下記一般式（１）で表されるアルキレンオキサイド付加物、及びＪＩＳ Ｋ１５５７−１：２００７に準拠して測定される水酸基価から計算される重量平均分子量Ｍｗ１で１３００〜５５００を有するポリプロピレングリコールを含有する収縮低減剤と、水硬性成分とを含み、上記アルキレンオキサイド付加物及び上記ポリプロピレングリコールの合計に対する、上記ポリプロピレングリコールの質量比率ＲＰが４〜１７質量％であり、上記重量平均分子量Ｍｗ１と上記質量比率ＲＰとが下記式（α１）を満たす、水硬性組成物。ＲＯ−［（ＰＯ）ｐ／（ＥＯ）ｑ］−Ｈ （１）３００ＲＰ＋Ｍｗ１≧４０００ （α１）【選択図】図１
HYDRAULIC COMPOSITION, HYDRAULIC MORTAR, CURED BODY THEREOF, AND MANUFACTURING METHOD OF HYDRAULIC COMPOSITION
To provide a hydraulic composition capable of providing a cured body having excellent effects on reduction of initial shrinkage amount, and having an appropriate air amount even when a shrinkage reduction agent stored in a prescribed time is used.SOLUTION: There is provided a hydraulic composition containing a shrinkage reduction agent containing an alkylene oxide adduct represented by the following general formula (1) and polypropylene glycol having weight average molecular weight Mw1 calculated from a hydroxyl group value measured according to JIS K1557-1:2007 of 1300 to 5500, and a hydraulic component, in which a mass ratio of the polypropylene glycol to total of the alkylene oxide adduct and the polypropylene glycol, Ris 4 to 17 mass%, and the weight average molecular weight Mw1 and the mass ratio Rsatisfy the following formula (α1). RO-[(PO)/(EO)]-H (1) 300R+Mw1≥4000 (α1)SELECTED DRAWING: Figure 1
【課題】初期収縮量の低減について優れた効果を有し、且つ、一定期間貯蔵した収縮低減剤を用いた場合も適度な空気量を有する硬化体を得ることが可能な水硬性組成物を提供することを目的とする。【解決手段】下記一般式（１）で表されるアルキレンオキサイド付加物、及びＪＩＳ Ｋ１５５７−１：２００７に準拠して測定される水酸基価から計算される重量平均分子量Ｍｗ１で１３００〜５５００を有するポリプロピレングリコールを含有する収縮低減剤と、水硬性成分とを含み、上記アルキレンオキサイド付加物及び上記ポリプロピレングリコールの合計に対する、上記ポリプロピレングリコールの質量比率ＲＰが４〜１７質量％であり、上記重量平均分子量Ｍｗ１と上記質量比率ＲＰとが下記式（α１）を満たす、水硬性組成物。ＲＯ−［（ＰＯ）ｐ／（ＥＯ）ｑ］−Ｈ （１）３００ＲＰ＋Ｍｗ１≧４０００ （α１）【選択図】図１
HYDRAULIC COMPOSITION, HYDRAULIC MORTAR, CURED BODY THEREOF, AND MANUFACTURING METHOD OF HYDRAULIC COMPOSITION
水硬性組成物、水硬性モルタル、及びその硬化体、並びに水硬性組成物の製造方法
TAKAHASHI KEISUKE (author) / ITO TAKAYASU (author) / SAIGA MASATAKA (author) / KITANO KENICHI (author)
2020-01-16
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
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