Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of liquid cement retarder
The invention discloses a preparation method of a liquid cement retarder, and the preparation method comprises the following steps: S1, weighing polyacrylate, aliphatic hydroxymethyl sulfonate and a coagulation extender, putting the weighed polyacrylate, aliphatic hydroxymethyl sulfonate and coagulation extender into a stirrer, stirring, uniformly mixing, and heating to 60-85 DEG C to obtain a first mixture. According to the cement liquid retarder, by adding the fly ash, the lithium silicate and the potassium silicate, capillary pores and fine cracks in concrete can be filled with the prepared cement liquid retarder by the fly ash, the lithium silicate and the potassium silicate, and the anti-cracking performance of the cement liquid retarder is also enhanced while the moisture is maintained; the water control agent is one of acrylamide and potassium acrylate, the water control agent, the acrylamide and the potassium acrylate are combined to obtain a main material, and after the main material is added into cement, the water in the cement is maintained, the surface activity is enhanced, and continuous delayed coagulation treatment is guaranteed when the cement is mixed with water.
本发明公开了一种水泥液态缓凝剂的制备方法，包括以下步骤：S1、称取聚丙烯酸盐、脂肪族羟甲基磺酸盐和凝结延长剂，放入搅拌机内进行搅拌处理，混合均匀后加热至60‑85℃，得到第一混合料，本发明的有益效果是：通过加入了功能添加辅料，实现了粉煤灰、硅酸锂和硅酸钾对制备出的水泥液态缓凝剂进行填充混凝土中的毛细孔和细微裂缝，在水分保持的同时对水泥液态缓凝剂的防裂性能也进行增强，通过加入了聚丙烯酸盐、脂肪族羟甲基磺酸盐和控水剂，控水剂是丙烯酰胺、丙烯酸钾中的其中一种，三者进行结合得到主料，添加进水泥后，对水泥内的水分进行保持，对表面的活性进行增强，保障在水泥与水混合时持续缓凝处理。
Preparation method of liquid cement retarder
The invention discloses a preparation method of a liquid cement retarder, and the preparation method comprises the following steps: S1, weighing polyacrylate, aliphatic hydroxymethyl sulfonate and a coagulation extender, putting the weighed polyacrylate, aliphatic hydroxymethyl sulfonate and coagulation extender into a stirrer, stirring, uniformly mixing, and heating to 60-85 DEG C to obtain a first mixture. According to the cement liquid retarder, by adding the fly ash, the lithium silicate and the potassium silicate, capillary pores and fine cracks in concrete can be filled with the prepared cement liquid retarder by the fly ash, the lithium silicate and the potassium silicate, and the anti-cracking performance of the cement liquid retarder is also enhanced while the moisture is maintained; the water control agent is one of acrylamide and potassium acrylate, the water control agent, the acrylamide and the potassium acrylate are combined to obtain a main material, and after the main material is added into cement, the water in the cement is maintained, the surface activity is enhanced, and continuous delayed coagulation treatment is guaranteed when the cement is mixed with water.
本发明公开了一种水泥液态缓凝剂的制备方法，包括以下步骤：S1、称取聚丙烯酸盐、脂肪族羟甲基磺酸盐和凝结延长剂，放入搅拌机内进行搅拌处理，混合均匀后加热至60‑85℃，得到第一混合料，本发明的有益效果是：通过加入了功能添加辅料，实现了粉煤灰、硅酸锂和硅酸钾对制备出的水泥液态缓凝剂进行填充混凝土中的毛细孔和细微裂缝，在水分保持的同时对水泥液态缓凝剂的防裂性能也进行增强，通过加入了聚丙烯酸盐、脂肪族羟甲基磺酸盐和控水剂，控水剂是丙烯酰胺、丙烯酸钾中的其中一种，三者进行结合得到主料，添加进水泥后，对水泥内的水分进行保持，对表面的活性进行增强，保障在水泥与水混合时持续缓凝处理。
Preparation method of liquid cement retarder
一种水泥液态缓凝剂的制备方法
ZHANG ZHEN (Autor:in) / ZHANG XIAOCHUAN (Autor:in) / ZHANG HONGCHUAN (Autor:in) / LIU YUXIN (Autor:in) / LIANG XUELIAN (Autor:in)
25.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
Enhanced cement retarder and preparation method thereof
| Europäisches Patentamt | 2020