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Alkali-free liquid accelerator and preparation method thereof
The invention discloses an alkali-free liquid accelerator which comprises the following components in percentage by mass: 25%-35% of a first rapid hardening component, 4%-7% of a second rapid hardening component, 3%-5% of a fluorine-containing coagulating component, 1%-5% of an early strength component, 16%-28% of a regulator and the balance of water, the first rapid hardening component is aluminum sulfate octadecahydrate, and the second rapid hardening component is one or two of aluminum fluoride or aluminum hydroxide. According to the invention, the induction period of C3S is shortened by increasing the yield of fluorine ions and the regulator, so that the coagulation accelerating effect, the early strength and the stability of the accelerator are greatly improved.
本发明公开了一种无碱液体速凝剂，以质量百分数计，包括如下组分，速凝组分一25%‑35%、速凝组分二4%‑7%、含氟促凝组分3%‑5%、早强组分1%‑5%、调节剂16%‑28%、其余为水，所述速凝组分一为十八水合硫酸铝，所述速凝组分二为氟化铝或氢氧化铝的一种或两种。本发明通过提高了氟离子与调节剂产量以缩小C3S的诱导期，极大地提高了速凝剂的促凝效果、早期强度及稳定性。
Alkali-free liquid accelerator and preparation method thereof
The invention discloses an alkali-free liquid accelerator which comprises the following components in percentage by mass: 25%-35% of a first rapid hardening component, 4%-7% of a second rapid hardening component, 3%-5% of a fluorine-containing coagulating component, 1%-5% of an early strength component, 16%-28% of a regulator and the balance of water, the first rapid hardening component is aluminum sulfate octadecahydrate, and the second rapid hardening component is one or two of aluminum fluoride or aluminum hydroxide. According to the invention, the induction period of C3S is shortened by increasing the yield of fluorine ions and the regulator, so that the coagulation accelerating effect, the early strength and the stability of the accelerator are greatly improved.
本发明公开了一种无碱液体速凝剂，以质量百分数计，包括如下组分，速凝组分一25%‑35%、速凝组分二4%‑7%、含氟促凝组分3%‑5%、早强组分1%‑5%、调节剂16%‑28%、其余为水，所述速凝组分一为十八水合硫酸铝，所述速凝组分二为氟化铝或氢氧化铝的一种或两种。本发明通过提高了氟离子与调节剂产量以缩小C3S的诱导期，极大地提高了速凝剂的促凝效果、早期强度及稳定性。
Alkali-free liquid accelerator and preparation method thereof
一种无碱液体速凝剂及其制备方法
YAN RUIHUA (author) / LYU JUNGANG (author) / MA YULIANG (author) / ZHANG XIN (author) / LIANG ZIWEI (author) / ZHAO HUI (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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