Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
ULTRA-FAST SETTING CEMENT MORTAR
To provide an ultra-fast setting cement mortar useful as a repair material for cement structures, the mortar having: a low fluctuation of setting time due to temperature environment; a low change in properties such as setting time even after long-term storage in a solid state; a low length change rate; and a high freeze-thaw resistance of the hardened material.SOLUTION: An ultra-fast setting cement mortar comprises cement, a fast setting admixture, a fine aggregate, silica fume, oxycarboxylic acid, an inorganic carbonate, alum, a synthetic polymer-based thickening and water retention agent, and water. A content of the inorganic carbonate is in a range of 1.0 pts.mass or more and 2.0 pts.mass or less per 1.0 pts.mass of the oxycarboxylic acid, and a content of the alum is in a range of 0.4 pt.mass or more and 9.0 pts.mass or less per 100 pts.mass of the total of a fast-curing admixture and cement.SELECTED DRAWING: None
【課題】温度環境による凝結時間の変動が小さく、かつ固形物の状態で長期間保存しても凝結時間などの特性が変化しにくく、長さ変化率が低く、硬化物の凍結融解抵抗性が高いセメント構造物の補修材として有用な超速硬性セメントモルタルを提供する。【解決手段】セメントと、速硬性混和材と、細骨材と、シリカフュームと、オキシカルボン酸と、無機炭酸塩と、ミョウバンと、合成ポリマー系増粘保水剤と、水とを含み、前記無機炭酸塩の含有量が、前記オキシカルボン酸１．０質量部に対して１．０質量部以上２．０質量部以下の範囲内にあり、前記ミョウバンの含有量が、速硬性混和材とセメントの合計量１００質量部に対して０．４質量部以上９．０質量部以下 の範囲内にある超速硬性セメントモルタル。【選択図】なし
ULTRA-FAST SETTING CEMENT MORTAR
To provide an ultra-fast setting cement mortar useful as a repair material for cement structures, the mortar having: a low fluctuation of setting time due to temperature environment; a low change in properties such as setting time even after long-term storage in a solid state; a low length change rate; and a high freeze-thaw resistance of the hardened material.SOLUTION: An ultra-fast setting cement mortar comprises cement, a fast setting admixture, a fine aggregate, silica fume, oxycarboxylic acid, an inorganic carbonate, alum, a synthetic polymer-based thickening and water retention agent, and water. A content of the inorganic carbonate is in a range of 1.0 pts.mass or more and 2.0 pts.mass or less per 1.0 pts.mass of the oxycarboxylic acid, and a content of the alum is in a range of 0.4 pt.mass or more and 9.0 pts.mass or less per 100 pts.mass of the total of a fast-curing admixture and cement.SELECTED DRAWING: None
【課題】温度環境による凝結時間の変動が小さく、かつ固形物の状態で長期間保存しても凝結時間などの特性が変化しにくく、長さ変化率が低く、硬化物の凍結融解抵抗性が高いセメント構造物の補修材として有用な超速硬性セメントモルタルを提供する。【解決手段】セメントと、速硬性混和材と、細骨材と、シリカフュームと、オキシカルボン酸と、無機炭酸塩と、ミョウバンと、合成ポリマー系増粘保水剤と、水とを含み、前記無機炭酸塩の含有量が、前記オキシカルボン酸１．０質量部に対して１．０質量部以上２．０質量部以下の範囲内にあり、前記ミョウバンの含有量が、速硬性混和材とセメントの合計量１００質量部に対して０．４質量部以上９．０質量部以下 の範囲内にある超速硬性セメントモルタル。【選択図】なし
ULTRA-FAST SETTING CEMENT MORTAR
超速硬性セメントモルタル
KIMOTO DAISUKE (Autor:in) / TAWARA HIDEO (Autor:in) / ISHIKUMA HARUKI (Autor:in)
11.10.2023
Patent
Elektronische Ressource
Japanisch
IPC:
C04B
Kalk
,
LIME
ULTRA-FAST SETTING CEMENT BASED ON AMORPHOUS CALCIUM ALUMINATE
| Europäisches Patentamt | 2017
ULTRA-FAST SETTING CEMENT BASED ON AMORPHOUS CALCIUM ALUMINATE
| Europäisches Patentamt | 2017
Ultra-fast setting cement based on amorphous calcium aluminate
| Europäisches Patentamt | 2019