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High-strength alkali-free liquid accelerator and preparation method thereof
The invention relates to a high-strength alkali-free liquid accelerator and a preparation method thereof. The high-strength alkali-free liquid accelerator comprises the following raw materials in percentage by mass: 14-30% of aluminum sulfate, 5%-10% of fluorine-containing acid, 5%-9% of aluminum hydroxide, 2%-7% of alcohol amine compounds, 10%-20% of an organic polymer coagulation accelerating component, 0.5%-2% of a dispersing agent, and the balance of water, wherein the sum of the mass percentages of the components is 100%. The invention also comprises a preparation method of the accelerator. The high-strength alkali-free liquid accelerator disclosed by the invention is stable in property and good in accelerating effect; when being used in concrete, the accelerator is short in setting time, high in early strength, high in later strength retention rate and low in injection resilience rate; the accelerator can be widely applied to supporting, leaking stoppage and repair of tunnels, highways, railways, mines and subways.
一种高强型无碱液体速凝剂及其制备方法，所述高强型无碱液体速凝剂的原料的质量分数如下：硫酸铝：14%~30%；含氟酸：5%~10%；氢氧化铝：5%~9%；醇胺类化合物：2%~7%；有机高分子促凝成分：10%~20%；分散剂：0.5%~2%；水：余量；以上各组分质量百分比之和为100％；本发明还包括所述速凝剂的制备方法。本发明高强型无碱液体速凝剂性质稳定，速凝效果好；用于混凝土中，凝结时间短、早期强度高、后期强度保留率大、喷射回弹率低；可广泛应用于隧道、公路、铁路、矿山、地铁的支护、堵漏、修补。
High-strength alkali-free liquid accelerator and preparation method thereof
The invention relates to a high-strength alkali-free liquid accelerator and a preparation method thereof. The high-strength alkali-free liquid accelerator comprises the following raw materials in percentage by mass: 14-30% of aluminum sulfate, 5%-10% of fluorine-containing acid, 5%-9% of aluminum hydroxide, 2%-7% of alcohol amine compounds, 10%-20% of an organic polymer coagulation accelerating component, 0.5%-2% of a dispersing agent, and the balance of water, wherein the sum of the mass percentages of the components is 100%. The invention also comprises a preparation method of the accelerator. The high-strength alkali-free liquid accelerator disclosed by the invention is stable in property and good in accelerating effect; when being used in concrete, the accelerator is short in setting time, high in early strength, high in later strength retention rate and low in injection resilience rate; the accelerator can be widely applied to supporting, leaking stoppage and repair of tunnels, highways, railways, mines and subways.
一种高强型无碱液体速凝剂及其制备方法，所述高强型无碱液体速凝剂的原料的质量分数如下：硫酸铝：14%~30%；含氟酸：5%~10%；氢氧化铝：5%~9%；醇胺类化合物：2%~7%；有机高分子促凝成分：10%~20%；分散剂：0.5%~2%；水：余量；以上各组分质量百分比之和为100％；本发明还包括所述速凝剂的制备方法。本发明高强型无碱液体速凝剂性质稳定，速凝效果好；用于混凝土中，凝结时间短、早期强度高、后期强度保留率大、喷射回弹率低；可广泛应用于隧道、公路、铁路、矿山、地铁的支护、堵漏、修补。
High-strength alkali-free liquid accelerator and preparation method thereof
一种高强型无碱液体速凝剂及其制备方法
WANG WEI (author) / ZHOU TINGTING (author)
2021-03-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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