Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide an admixture material composition capable of sufficiently exhibiting shrinkage reducing performance and flowability of a cement composition.SOLUTION: An admixture material composition contains a shrinkage reducing agent and a polycarboxylic acid-based water-reducing agent, where the shrinkage reducing agent contains a compound satisfying conditions (1) to (5). (1) a ratio between 15 tap flow values after 10 minutes from the start of kneading mortar obtained by addition of the compound with solid content concentration of 0.1% and mortar that does not contain the compound:120 or less; (2) a ratio of a ratio of a 15 tap flow value after 2 hours from the start of kneading the mortar composition obtained by addition of the compound with the solid content concentration of 0.1% to the mortar that does not contain the compound to a ratio of a 15 tap flow value after 10 minutes from the start of kneading the substances: 110 or less; (3) an average particle diameter of the compound in an alkali solution of 2.2-8.5 nm; (4) a rate of a monomer having an acid group in 100 mol% of a monomer component being a raw material of the compound of 25 mol% or more; and (5) surface tension of the compound of 55-70 mN/m.SELECTED DRAWING: None
【課題】収縮低減性とセメント組成物の流動性とを充分に発揮させることができる混和材料組成物を提供する。【解決手段】収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物であって、収縮低減剤は、（１）〜（５）の条件を満たす化合物を含む組成物。（１）該化合物を０．１％の固形分濃度で添加したモルタルと、該化合物を含まない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：１２０以下（２）該化合物を含まないモルタルに対する、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：１１０以下（３）該化合物のアルカリ溶液中での平均粒子直径が２．２〜８．５ｎｍ（４）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２５モル％以上（５）該化合物の表面張力が５５〜７０ｍＮ／ｍ【選択図】なし
PROBLEM TO BE SOLVED: To provide an admixture material composition capable of sufficiently exhibiting shrinkage reducing performance and flowability of a cement composition.SOLUTION: An admixture material composition contains a shrinkage reducing agent and a polycarboxylic acid-based water-reducing agent, where the shrinkage reducing agent contains a compound satisfying conditions (1) to (5). (1) a ratio between 15 tap flow values after 10 minutes from the start of kneading mortar obtained by addition of the compound with solid content concentration of 0.1% and mortar that does not contain the compound:120 or less; (2) a ratio of a ratio of a 15 tap flow value after 2 hours from the start of kneading the mortar composition obtained by addition of the compound with the solid content concentration of 0.1% to the mortar that does not contain the compound to a ratio of a 15 tap flow value after 10 minutes from the start of kneading the substances: 110 or less; (3) an average particle diameter of the compound in an alkali solution of 2.2-8.5 nm; (4) a rate of a monomer having an acid group in 100 mol% of a monomer component being a raw material of the compound of 25 mol% or more; and (5) surface tension of the compound of 55-70 mN/m.SELECTED DRAWING: None
【課題】収縮低減性とセメント組成物の流動性とを充分に発揮させることができる混和材料組成物を提供する。【解決手段】収縮低減剤とポリカルボン酸系減水剤とを含む混和材料組成物であって、収縮低減剤は、（１）〜（５）の条件を満たす化合物を含む組成物。（１）該化合物を０．１％の固形分濃度で添加したモルタルと、該化合物を含まない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：１２０以下（２）該化合物を含まないモルタルに対する、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：１１０以下（３）該化合物のアルカリ溶液中での平均粒子直径が２．２〜８．５ｎｍ（４）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２５モル％以上（５）該化合物の表面張力が５５〜７０ｍＮ／ｍ【選択図】なし
ADMIXTURE MATERIAL COMPOSITION
混和材料組成物
MASANAGA MARI (Autor:in)
12.10.2017
Patent
Elektronische Ressource
Japanisch