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SHRINKAGE REDUCING AGENT FOR HYDRAULIC MATERIAL
PROBLEM TO BE SOLVED: To provide an additive excellent in shrinkage reducing performance.SOLUTION: A shrinkage reducing agent for hydraulic material contains a shrinkage reducing agent (A) and a shrinkage reducing agent (B), where the shrinkage reducing agent (A) contains a compound (a) satisfying the following (1) to (3) conditions, the shrinkage reducing agent (B) contains a compound represented by formula (1): [R-(OR)-]Y[-(RO)-R]. (1) a ratio between 15 tap flow values after 10 minutes from the start of kneading a mortar composition containing the compound (a) with solid content concentration of 0.1% and mortar containing no compound (a)×100 is 120 or less; (2) a ratio between a ratio of 15 tap flow values after 2 hours from the start of kneading the mortar composition containing the compound (a) with the solid content concentration of 0.1% and the mortar containing no compound (a) to a ratio of 15 tap flow values after 10 minutes from the start of kneading the substances×100 is 110 or less; and (3) a rate of a monomer having an acid group in 100 mol% of a monomer component being a raw material of the compound is 1-97 mol%.SELECTED DRAWING: None
【課題】収縮低減性能に優れる添加剤の提供。【解決手段】収縮低減剤（Ａ）と収縮低減剤（Ｂ）とを含み、該収縮低減剤（Ａ）は、下記（１）〜（３）の条件を満たす化合物（ａ）を含み、該収縮低減剤（Ｂ）は、下記式（１）であらわされる化合を含む水硬性材料用収縮低減剤。［Ｒ１−（ＯＲ３）ｍ−］ｐＹ［−（Ｒ４Ｏ）ｎ−Ｒ２］ｑ（１）、（１）該化合物（ａ）を０．１％の固形分濃度のモルタル組成物と、該化合物（ａ）を含まないモルタルとの混練開始から１０分後の１５打フロー値の比×１００が１２０以下、（２）該化合物（ａ）を含まないモルタルに対する、該化合物（ａ）を０．１％の固形分濃度のモルタル組成物の混練開始から２時間後の１５打フロー値の比と、１０分後の１５打フロー値の比との比×１００が１１０以下（３）該化合物の原料である単量体成分１００モル％中の酸基を有する単量体の割合が１〜９７モル％【選択図】なし
SHRINKAGE REDUCING AGENT FOR HYDRAULIC MATERIAL
PROBLEM TO BE SOLVED: To provide an additive excellent in shrinkage reducing performance.SOLUTION: A shrinkage reducing agent for hydraulic material contains a shrinkage reducing agent (A) and a shrinkage reducing agent (B), where the shrinkage reducing agent (A) contains a compound (a) satisfying the following (1) to (3) conditions, the shrinkage reducing agent (B) contains a compound represented by formula (1): [R-(OR)-]Y[-(RO)-R]. (1) a ratio between 15 tap flow values after 10 minutes from the start of kneading a mortar composition containing the compound (a) with solid content concentration of 0.1% and mortar containing no compound (a)×100 is 120 or less; (2) a ratio between a ratio of 15 tap flow values after 2 hours from the start of kneading the mortar composition containing the compound (a) with the solid content concentration of 0.1% and the mortar containing no compound (a) to a ratio of 15 tap flow values after 10 minutes from the start of kneading the substances×100 is 110 or less; and (3) a rate of a monomer having an acid group in 100 mol% of a monomer component being a raw material of the compound is 1-97 mol%.SELECTED DRAWING: None
【課題】収縮低減性能に優れる添加剤の提供。【解決手段】収縮低減剤（Ａ）と収縮低減剤（Ｂ）とを含み、該収縮低減剤（Ａ）は、下記（１）〜（３）の条件を満たす化合物（ａ）を含み、該収縮低減剤（Ｂ）は、下記式（１）であらわされる化合を含む水硬性材料用収縮低減剤。［Ｒ１−（ＯＲ３）ｍ−］ｐＹ［−（Ｒ４Ｏ）ｎ−Ｒ２］ｑ（１）、（１）該化合物（ａ）を０．１％の固形分濃度のモルタル組成物と、該化合物（ａ）を含まないモルタルとの混練開始から１０分後の１５打フロー値の比×１００が１２０以下、（２）該化合物（ａ）を含まないモルタルに対する、該化合物（ａ）を０．１％の固形分濃度のモルタル組成物の混練開始から２時間後の１５打フロー値の比と、１０分後の１５打フロー値の比との比×１００が１１０以下（３）該化合物の原料である単量体成分１００モル％中の酸基を有する単量体の割合が１〜９７モル％【選択図】なし
SHRINKAGE REDUCING AGENT FOR HYDRAULIC MATERIAL
水硬性材料用収縮低減剤
MASANAGA MARI (author)
2017-10-12
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
| European Patent Office | 2018
| European Patent Office | 2015