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High-adaptability alkali-free accelerator prepared from modified aluminum hydroxide and preparation method of high-adaptability alkali-free accelerator
The invention discloses a high-adaptability alkali-free accelerator prepared from modified aluminum hydroxide and a method thereof. The alkali-free accelerator is prepared from the following raw materials in percentage by mass: 30%-50% of aluminum sulfate, 25%-35% of a fluorine-aluminum complexing component, 5%-10% of modified aluminum hydroxide, 3%-5% of a PH adjusting coagulating component, 0.5%-2% of an alcohol amine coagulating enhancing component and the balance of water. The liquid alkali-free accelerator is simple in production and synthesis process, free of hydrofluoric acid, alkali and chlorine and harmless to construction and the environment, the safety of constructors is guaranteed to a great extent, meanwhile, the alkali-free accelerator is high in adaptability, can adapt to most of existing engineering cement, is low in mixing amount, meets the GB/T35159-2017 standard specification requirement when the mixing amount is 6%, and has a wide application prospect. After the modifier is used for modifying aluminum hydroxide, the setting time of the alkali-free accelerator is prolonged, the alkali-free accelerator is good in stability and high in early strength, and the site construction of sprayed concrete is greatly improved.
本发明公开了一种改性氢氧化铝制备高适应性无碱速凝剂及其方法，该无碱速凝剂由以下质量百分比原材料制备：硫酸铝30％～50％、氟铝络合组分25％～35％、改性氢氧化铝5％～10％、PH调节促凝组分3％～5％、醇胺类促凝增强组分0.5％～2％，其余量为水。该液体无碱速凝剂生产合成工艺简单，无氢氟酸、无碱无氯，对施工及环境无危害，极大程度的保证施工人员的安全，同时该无碱速凝剂适应性强，能适应现大部分工程水泥且掺量低，在掺量为6％，满足GB/T35159‑2017标准规范要求，在使用改性剂改性氢氧化铝后，提高了无碱速凝剂凝结时间、稳定性好及早期强度高，对喷射混凝土现场施工得到很大改善。
High-adaptability alkali-free accelerator prepared from modified aluminum hydroxide and preparation method of high-adaptability alkali-free accelerator
The invention discloses a high-adaptability alkali-free accelerator prepared from modified aluminum hydroxide and a method thereof. The alkali-free accelerator is prepared from the following raw materials in percentage by mass: 30%-50% of aluminum sulfate, 25%-35% of a fluorine-aluminum complexing component, 5%-10% of modified aluminum hydroxide, 3%-5% of a PH adjusting coagulating component, 0.5%-2% of an alcohol amine coagulating enhancing component and the balance of water. The liquid alkali-free accelerator is simple in production and synthesis process, free of hydrofluoric acid, alkali and chlorine and harmless to construction and the environment, the safety of constructors is guaranteed to a great extent, meanwhile, the alkali-free accelerator is high in adaptability, can adapt to most of existing engineering cement, is low in mixing amount, meets the GB/T35159-2017 standard specification requirement when the mixing amount is 6%, and has a wide application prospect. After the modifier is used for modifying aluminum hydroxide, the setting time of the alkali-free accelerator is prolonged, the alkali-free accelerator is good in stability and high in early strength, and the site construction of sprayed concrete is greatly improved.
本发明公开了一种改性氢氧化铝制备高适应性无碱速凝剂及其方法，该无碱速凝剂由以下质量百分比原材料制备：硫酸铝30％～50％、氟铝络合组分25％～35％、改性氢氧化铝5％～10％、PH调节促凝组分3％～5％、醇胺类促凝增强组分0.5％～2％，其余量为水。该液体无碱速凝剂生产合成工艺简单，无氢氟酸、无碱无氯，对施工及环境无危害，极大程度的保证施工人员的安全，同时该无碱速凝剂适应性强，能适应现大部分工程水泥且掺量低，在掺量为6％，满足GB/T35159‑2017标准规范要求，在使用改性剂改性氢氧化铝后，提高了无碱速凝剂凝结时间、稳定性好及早期强度高，对喷射混凝土现场施工得到很大改善。
High-adaptability alkali-free accelerator prepared from modified aluminum hydroxide and preparation method of high-adaptability alkali-free accelerator
一种改性氢氧化铝制备高适应性无碱速凝剂及其方法
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
High-adaptability alkali-free liquid accelerator, preparation method thereof and sprayed concrete
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