Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
UNDERWATER NON-SEPARABLE MORTAR COMPOSITION
PROBLEM TO BE SOLVED: To provide an underwater non-separable composition capable of reducing setting time while having satisfactory underwater non-separability even in an environment of below 20°C.SOLUTION: Provided is an underwater non-separable mortar composition, to cement (A) of 100 pts.mass, comprising: a fine aggregate (B) of 20 to 70 pts.mass; a thickener (C) of 0.13 to 0.3 pts.mass; and a polycarboxylic acid-based water reducing agent (D) of 0.4 to 0.9 pts.mass, in which the mass ratio of the polycarboxylic acid-based water reducing agent (D) to the thickener (C), (D/C) being 2.0 to 4.0. Also provided is an underwater non-separable mortar composition in which the cement (A) is preferably being high early strength portland cement, further, an expansion agent (E) is desirably included, and the end of setting time is more preferably 16 hr or lower.SELECTED DRAWING: None
【課題】２０℃未満の環境下においても良好な水中不分離性を具備しつつ、凝結時間の短縮ができる水中不分離性モルタル組成物を提供。【解決手段】（Ａ）セメント１００質量部に対して（Ｂ）細骨材２０〜７０質量部、（Ｃ）増粘剤０．１３〜０．３質量部及び（Ｄ）ポリカルボン酸系減水剤０．４〜０．９質量部を含有し、（Ｃ）増粘剤に対する（Ｄ）ポリカルボン酸系減水剤の質量比（Ｄ／Ｃ）が２．０〜４．０である水中不分離モルタル組成物。（Ａ）セメントが早強ポルトランドセメントであることが好ましく、更に（Ｅ）膨張剤を含有することが望ましく、凝結時間の終結が１６時間以内であることがより好ましい水中不分離性モルタル組成物。【選択図】なし
UNDERWATER NON-SEPARABLE MORTAR COMPOSITION
PROBLEM TO BE SOLVED: To provide an underwater non-separable composition capable of reducing setting time while having satisfactory underwater non-separability even in an environment of below 20°C.SOLUTION: Provided is an underwater non-separable mortar composition, to cement (A) of 100 pts.mass, comprising: a fine aggregate (B) of 20 to 70 pts.mass; a thickener (C) of 0.13 to 0.3 pts.mass; and a polycarboxylic acid-based water reducing agent (D) of 0.4 to 0.9 pts.mass, in which the mass ratio of the polycarboxylic acid-based water reducing agent (D) to the thickener (C), (D/C) being 2.0 to 4.0. Also provided is an underwater non-separable mortar composition in which the cement (A) is preferably being high early strength portland cement, further, an expansion agent (E) is desirably included, and the end of setting time is more preferably 16 hr or lower.SELECTED DRAWING: None
【課題】２０℃未満の環境下においても良好な水中不分離性を具備しつつ、凝結時間の短縮ができる水中不分離性モルタル組成物を提供。【解決手段】（Ａ）セメント１００質量部に対して（Ｂ）細骨材２０〜７０質量部、（Ｃ）増粘剤０．１３〜０．３質量部及び（Ｄ）ポリカルボン酸系減水剤０．４〜０．９質量部を含有し、（Ｃ）増粘剤に対する（Ｄ）ポリカルボン酸系減水剤の質量比（Ｄ／Ｃ）が２．０〜４．０である水中不分離モルタル組成物。（Ａ）セメントが早強ポルトランドセメントであることが好ましく、更に（Ｅ）膨張剤を含有することが望ましく、凝結時間の終結が１６時間以内であることがより好ましい水中不分離性モルタル組成物。【選択図】なし
UNDERWATER NON-SEPARABLE MORTAR COMPOSITION
水中不分離性モルタル組成物
AKAE SHINYA (Autor:in)
29.06.2017
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
UNDERWATER INSEPARABLE MORTAR COMPOSITION, AND UNDERWATER INSEPARABLE MORTAR
| Europäisches Patentamt | 2019
| Europäisches Patentamt | 2021
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2020