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A platform for research: civil engineering, architecture and urbanism
Fluorine-free high-early-strength liquid alkali-free accelerator as well as preparation method and application thereof
The invention provides a fluoride-free liquid alkali-free accelerator as well as a preparation method and application thereof. The fluoride-free liquid alkali-free accelerator comprises the following raw materials in parts by weight: 450-600 parts of aluminum sulfate, 5-20 parts of a stabilizer, 25-150 parts of an organic complexing activator, 20-100 parts of alcohol amine, 0-10 parts of organic alcohol, 10-75 parts of an early strength agent, 0-10 parts of a neutralizer and deionized water. Wherein the organic complexing exciting agent is a high-molecular multipolymer which is obtained by carrying out redox initiation polymerization on unsaturated amide, unsaturated silane and unsaturated sulfonic acid monomers. The liquid alkali-free accelerator provided by the invention has the characteristic of rapid development of compressive strength in 6h and 1d, has the characteristics of no fluorine and chlorine, good stability, low mixing amount, fast coagulation, high later strength retention rate and the like, and can be widely applied to engineering construction such as railway tunnel and mine roadway support, repair and reinforcement, water prevention and leakage stoppage and the like.
本发明提出了一种无氟型液体无碱速凝剂及制备方法和应用，该无氟型液体无碱速凝剂包括如下重量份数的原料：硫酸铝450～600份、稳定剂5～20份、有机络合激发剂25～150份、醇胺20～100份、有机醇0～10份、早强剂10～75份、中和剂0～10份及去离子水。其中有机络合激发剂为不饱和酰胺、不饱和硅烷和不饱和磺酸单体经氧化还原引发聚合而得的高分子多元共聚物。本发明提供的液体无碱速凝剂具有6h和1d抗压强度发展迅速的特性，同时兼具无氟无氯、稳定性好、掺量低、凝结快、后期强度保留率高等特点，可广泛应用于铁路隧道、矿山巷道支护、修复加固和防水堵漏等工程建设中。
Fluorine-free high-early-strength liquid alkali-free accelerator as well as preparation method and application thereof
The invention provides a fluoride-free liquid alkali-free accelerator as well as a preparation method and application thereof. The fluoride-free liquid alkali-free accelerator comprises the following raw materials in parts by weight: 450-600 parts of aluminum sulfate, 5-20 parts of a stabilizer, 25-150 parts of an organic complexing activator, 20-100 parts of alcohol amine, 0-10 parts of organic alcohol, 10-75 parts of an early strength agent, 0-10 parts of a neutralizer and deionized water. Wherein the organic complexing exciting agent is a high-molecular multipolymer which is obtained by carrying out redox initiation polymerization on unsaturated amide, unsaturated silane and unsaturated sulfonic acid monomers. The liquid alkali-free accelerator provided by the invention has the characteristic of rapid development of compressive strength in 6h and 1d, has the characteristics of no fluorine and chlorine, good stability, low mixing amount, fast coagulation, high later strength retention rate and the like, and can be widely applied to engineering construction such as railway tunnel and mine roadway support, repair and reinforcement, water prevention and leakage stoppage and the like.
本发明提出了一种无氟型液体无碱速凝剂及制备方法和应用，该无氟型液体无碱速凝剂包括如下重量份数的原料：硫酸铝450～600份、稳定剂5～20份、有机络合激发剂25～150份、醇胺20～100份、有机醇0～10份、早强剂10～75份、中和剂0～10份及去离子水。其中有机络合激发剂为不饱和酰胺、不饱和硅烷和不饱和磺酸单体经氧化还原引发聚合而得的高分子多元共聚物。本发明提供的液体无碱速凝剂具有6h和1d抗压强度发展迅速的特性，同时兼具无氟无氯、稳定性好、掺量低、凝结快、后期强度保留率高等特点，可广泛应用于铁路隧道、矿山巷道支护、修复加固和防水堵漏等工程建设中。
Fluorine-free high-early-strength liquid alkali-free accelerator as well as preparation method and application thereof
一种无氟型高早强液体无碱速凝剂及制备方法和应用
XU ZHONGZHOU (author) / WANG HONGWEI (author) / WANG YINGWEI (author)
2022-04-29
Patent
Electronic Resource
Chinese
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