A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to an environment-friendly liquid alkali-free accelerator and a preparation method thereof. The environment-friendly liquid alkali-free accelerator is prepared from 50 parts of aluminum salt, 20 parts of magnesium sulfate, 2 parts of triethanolamine, 2 parts of triisopropanolamine, 2 parts of modified alcohol amine, 6 parts of lactic acid, 1 part of early strength agent, 6 parts of inorganic acid, 35 parts of solvent, 1 part of ferrous sulfate, 1 part of polyhydroxy compound, 1 part of cyclic amide monomer, 1 part of magnesium bromide and 5 parts of hyperbranched polymer. Dissolving aluminum salt and magnesium sulfate in a solvent, heating to 40-70 DEG C, adding modified alcohol amine and the organic agent obtained in the step S2, stirring for 30-70 minutes at a constant temperature, adding montmorillonite powder, stirring for 30-60 minutes at a constant temperature, adding inorganic acid, stirring for 10-30 minutes at a constant temperature, and cooling to room temperature to obtain the alkali-free liquid accelerator. The method has the advantages of stability improvement, low strong doping amount and high strength.
本发明涉及一种环保型液体无碱速凝剂及其制备方法，包括铝盐50份、硫酸镁20份、三乙醇胺2份、三异丙醇胺2份、改性醇胺2份、乳酸6份、早强剂1份、无机酸6份、溶剂35份、硫酸亚铁1份、多羟基化合物1份、环酰胺类单体1份、溴化镁1份、超支化聚合物5份；将铝盐、硫酸镁溶于溶剂中，升温至40‑70℃，加入改性醇胺和步骤S2所得有机剂，恒温搅拌30‑70分钟后，加入蒙脱石散恒温搅拌30‑60分钟，再加入无机酸恒温搅拌10‑30分钟，冷却至室温，得到液体无碱液体速凝剂。优点：提高稳定性、低强掺量、强度高。
The invention relates to an environment-friendly liquid alkali-free accelerator and a preparation method thereof. The environment-friendly liquid alkali-free accelerator is prepared from 50 parts of aluminum salt, 20 parts of magnesium sulfate, 2 parts of triethanolamine, 2 parts of triisopropanolamine, 2 parts of modified alcohol amine, 6 parts of lactic acid, 1 part of early strength agent, 6 parts of inorganic acid, 35 parts of solvent, 1 part of ferrous sulfate, 1 part of polyhydroxy compound, 1 part of cyclic amide monomer, 1 part of magnesium bromide and 5 parts of hyperbranched polymer. Dissolving aluminum salt and magnesium sulfate in a solvent, heating to 40-70 DEG C, adding modified alcohol amine and the organic agent obtained in the step S2, stirring for 30-70 minutes at a constant temperature, adding montmorillonite powder, stirring for 30-60 minutes at a constant temperature, adding inorganic acid, stirring for 10-30 minutes at a constant temperature, and cooling to room temperature to obtain the alkali-free liquid accelerator. The method has the advantages of stability improvement, low strong doping amount and high strength.
本发明涉及一种环保型液体无碱速凝剂及其制备方法，包括铝盐50份、硫酸镁20份、三乙醇胺2份、三异丙醇胺2份、改性醇胺2份、乳酸6份、早强剂1份、无机酸6份、溶剂35份、硫酸亚铁1份、多羟基化合物1份、环酰胺类单体1份、溴化镁1份、超支化聚合物5份；将铝盐、硫酸镁溶于溶剂中，升温至40‑70℃，加入改性醇胺和步骤S2所得有机剂，恒温搅拌30‑70分钟后，加入蒙脱石散恒温搅拌30‑60分钟，再加入无机酸恒温搅拌10‑30分钟，冷却至室温，得到液体无碱液体速凝剂。优点：提高稳定性、低强掺量、强度高。
Environment-friendly liquid alkali-free accelerator and preparation method thereof
一种环保型液体无碱速凝剂及其制备方法
MENG BIN (author)
2023-06-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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