Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Early-strength liquid low-alkali accelerator, preparation method and sprayed concrete
The invention provides an early-strength liquid low-alkali accelerator, a preparation method and sprayed concrete, and the method comprises the following steps: dropwise adding a modified calcium silicate crystal solution into alcoholized alkaline aluminum sol, and reacting for 3-4 hours to obtain the early-strength liquid low-alkali accelerator, the alcoholized alkaline aluminum sol is prepared from sodium hydroxide, aluminum hydroxide, acidic aluminum hydroxide gel and alcohols; the modified calcium silicate crystal comprises the following raw materials: a surface modifier, glycerol, ethylene glycol, hydrated magnesium silicate, sodium silicate nonahydrate, sodium metaaluminate, calcium nitrate and water. According to the invention, the early strength of the sprayed concrete can be improved under the condition that an admixture is not used.
本发明提供了一种早强型液体低碱速凝剂、制备方法及喷射混凝土，其方法为向醇化碱性铝溶胶内滴加改性硅酸钙晶体溶液，反应3‑4小时后得到早强型液体低碱速凝剂；所述醇化碱性铝溶胶由氢氧化钠、氢氧化铝、酸性氢氧化铝凝胶和醇类物配制而成；所述改性硅酸钙晶体的原料包括表面改性剂、甘油、乙二醇、水合硅酸镁、九水硅酸钠、偏铝酸钠、硝酸钙和水。本发明能在不使用外掺料的情况下，提高喷射混凝土早期强度。
Early-strength liquid low-alkali accelerator, preparation method and sprayed concrete
The invention provides an early-strength liquid low-alkali accelerator, a preparation method and sprayed concrete, and the method comprises the following steps: dropwise adding a modified calcium silicate crystal solution into alcoholized alkaline aluminum sol, and reacting for 3-4 hours to obtain the early-strength liquid low-alkali accelerator, the alcoholized alkaline aluminum sol is prepared from sodium hydroxide, aluminum hydroxide, acidic aluminum hydroxide gel and alcohols; the modified calcium silicate crystal comprises the following raw materials: a surface modifier, glycerol, ethylene glycol, hydrated magnesium silicate, sodium silicate nonahydrate, sodium metaaluminate, calcium nitrate and water. According to the invention, the early strength of the sprayed concrete can be improved under the condition that an admixture is not used.
本发明提供了一种早强型液体低碱速凝剂、制备方法及喷射混凝土，其方法为向醇化碱性铝溶胶内滴加改性硅酸钙晶体溶液，反应3‑4小时后得到早强型液体低碱速凝剂；所述醇化碱性铝溶胶由氢氧化钠、氢氧化铝、酸性氢氧化铝凝胶和醇类物配制而成；所述改性硅酸钙晶体的原料包括表面改性剂、甘油、乙二醇、水合硅酸镁、九水硅酸钠、偏铝酸钠、硝酸钙和水。本发明能在不使用外掺料的情况下，提高喷射混凝土早期强度。
Early-strength liquid low-alkali accelerator, preparation method and sprayed concrete
一种早强型液体低碱速凝剂、制备方法及喷射混凝土
YAO LONG (Autor:in) / ZHENG CHAOBAO (Autor:in) / GAO HONGBING (Autor:in) / WANG XU (Autor:in) / WANG WEI (Autor:in) / WEI YONGLIANG (Autor:in) / YAO JINGCHUAN (Autor:in) / WEI XIAO (Autor:in) / LI ZHIQING (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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