A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide an admixture material composition containing a shrinkage reducing agent capable of exhibiting both shrinkage reducing performance and crack resistance and an expansive additive.SOLUTION: An admixture material composition contains a shrinkage reducing agent for hydraulic material and an expansive additive, where the shrinkage reducing agent for hydraulic material contains a compound satisfying the following (1) to (3) conditions. (1) a ratio between 15 tap flow values of a mortar composition and mortar after 10 minutes from the start of kneading the mortar composition according to JASS 5 M402 obtained by adding the compound thereto with solid content concentration of 0.1% and the mortar according to JASS 5 M402 that does not contain the compound (15 tap flow value of compound-containing mortar composition/(15 tap flow value of mortar containing no compound)×100 is 120 or less; (2) a ratio of 15 tap flow values after 2 hours from the start of kneading the mortar composition according to JASS 5 M402 obtained by adding the compound thereto with solid content concentration of 0.1% to the mortar according to JASS 5 M402 that does not contain the compound to a ratio of 15 tap flow values after 10 minutes from the start of kneading the substances : (ratio 15 tap flow value after 2 hours)/(ratio 15 tap flow value after 10 minutes)×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】収縮低減性とひび割れ抵抗性とをともに充分に発揮させることができる収縮低減剤と膨張材とを含む混和材料組成物を提供する。【解決手段】水硬性材料用収縮低減剤と膨張材とを含む混和材料組成物であって、該水硬性材料用収縮低減剤は、下記（１）〜（３）の条件を満たす化合物を含むことを特徴とする混和材料組成物。（１）該化合物を０．１％の固形分濃度で添加したＪＡＳＳ ５ Ｍ４０２準拠のモルタル組成物と、該化合物を含まないＪＡＳＳ ５ Ｍ４０２準拠のモルタルとの混練開始から１０分後の１５打フロー値の比：（該化合物含有モルタル組成物の１５打フロー値）／（該化合物を含まないモルタルの１５打フロー値）×１００が１２０以下（２）該化合物を含まないＪＡＳＳ ５ Ｍ４０２準拠のモルタルに対する、該化合物を０．１％の固形分濃度で添加したＪＡＳＳ ５ Ｍ４０２準拠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、混練開始から１０分後の１５打フロー値の比との比：（２時間後の１５打フロー値の比）／（１０分後の１５打フロー値の比）×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
PROBLEM TO BE SOLVED: To provide an admixture material composition containing a shrinkage reducing agent capable of exhibiting both shrinkage reducing performance and crack resistance and an expansive additive.SOLUTION: An admixture material composition contains a shrinkage reducing agent for hydraulic material and an expansive additive, where the shrinkage reducing agent for hydraulic material contains a compound satisfying the following (1) to (3) conditions. (1) a ratio between 15 tap flow values of a mortar composition and mortar after 10 minutes from the start of kneading the mortar composition according to JASS 5 M402 obtained by adding the compound thereto with solid content concentration of 0.1% and the mortar according to JASS 5 M402 that does not contain the compound (15 tap flow value of compound-containing mortar composition/(15 tap flow value of mortar containing no compound)×100 is 120 or less; (2) a ratio of 15 tap flow values after 2 hours from the start of kneading the mortar composition according to JASS 5 M402 obtained by adding the compound thereto with solid content concentration of 0.1% to the mortar according to JASS 5 M402 that does not contain the compound to a ratio of 15 tap flow values after 10 minutes from the start of kneading the substances : (ratio 15 tap flow value after 2 hours)/(ratio 15 tap flow value after 10 minutes)×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】収縮低減性とひび割れ抵抗性とをともに充分に発揮させることができる収縮低減剤と膨張材とを含む混和材料組成物を提供する。【解決手段】水硬性材料用収縮低減剤と膨張材とを含む混和材料組成物であって、該水硬性材料用収縮低減剤は、下記（１）〜（３）の条件を満たす化合物を含むことを特徴とする混和材料組成物。（１）該化合物を０．１％の固形分濃度で添加したＪＡＳＳ ５ Ｍ４０２準拠のモルタル組成物と、該化合物を含まないＪＡＳＳ ５ Ｍ４０２準拠のモルタルとの混練開始から１０分後の１５打フロー値の比：（該化合物含有モルタル組成物の１５打フロー値）／（該化合物を含まないモルタルの１５打フロー値）×１００が１２０以下（２）該化合物を含まないＪＡＳＳ ５ Ｍ４０２準拠のモルタルに対する、該化合物を０．１％の固形分濃度で添加したＪＡＳＳ ５ Ｍ４０２準拠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、混練開始から１０分後の１５打フロー値の比との比：（２時間後の１５打フロー値の比）／（１０分後の１５打フロー値の比）×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
ADMIXTURE MATERIAL COMPOSITION
混和材料組成物
MASANAGA MARI (author)
2017-10-12
Patent
Electronic Resource
Japanese