Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Alkali-free accelerator as well as preparation method and application thereof
The invention relates to the field of accelerators, and particularly discloses an alkali-free accelerator which is prepared from the following raw materials in parts by mass: 360-380 parts of aluminum sulfate; 30 to 50 parts of magnesium fluosilicate; 15-20 parts of phosphoric acid; 65-80 parts of sodium sulfate; 38 to 46 parts of alcohol amine; 55 to 70 parts of a coagulation accelerator; 1-5 parts of xanthan gum; and 180 to 220 parts of water. The invention also discloses a preparation method of the alkali-free accelerator, which comprises the following steps: (1) adding water, sodium sulfate and the accelerator according to the formula to obtain a premix; (2) heating the reaction kettle to 48-52 DEG C, and adding magnesium fluosilicate, aluminum sulfate and xanthan gum into the premix; (3) heating the reaction kettle to 65-70 DEG C, and dropwise adding phosphoric acid and alkylol amine into the reaction kettle; and (4) cooling to normal temperature to obtain the alkali-free accelerator. The alkali-free accelerator provided by the invention can be applied to concrete. The accelerator has the effect of improving the stability of the accelerator.
本申请涉及速凝剂的领域，具体公开了一种无碱速凝剂，由以下质量份数的原料组成：硫酸铝360‑380份；氟硅酸镁30‑50份；磷酸15‑20份；硫酸钠65‑80份；醇胺38‑46份；促凝剂55‑70份；黄原胶1‑5份；水180‑220份。本申请还公开一种无碱速凝剂的制备方法，包括以下步骤：（1）按配方加入水、硫酸钠以及促凝剂，得到预混合料；（2）然后反应釜加热至48‑52℃，往预混合料中加入氟硅酸镁、硫酸铝以及黄原胶；（3）反应釜加热至65‑70℃，往反应釜中滴入磷酸和醇胺；（4）冷却至常温，即可得无碱速凝剂。本申请的无碱速凝剂可以应用于混凝土中。本申请具有使得速凝剂的稳定性提高的效果。
Alkali-free accelerator as well as preparation method and application thereof
The invention relates to the field of accelerators, and particularly discloses an alkali-free accelerator which is prepared from the following raw materials in parts by mass: 360-380 parts of aluminum sulfate; 30 to 50 parts of magnesium fluosilicate; 15-20 parts of phosphoric acid; 65-80 parts of sodium sulfate; 38 to 46 parts of alcohol amine; 55 to 70 parts of a coagulation accelerator; 1-5 parts of xanthan gum; and 180 to 220 parts of water. The invention also discloses a preparation method of the alkali-free accelerator, which comprises the following steps: (1) adding water, sodium sulfate and the accelerator according to the formula to obtain a premix; (2) heating the reaction kettle to 48-52 DEG C, and adding magnesium fluosilicate, aluminum sulfate and xanthan gum into the premix; (3) heating the reaction kettle to 65-70 DEG C, and dropwise adding phosphoric acid and alkylol amine into the reaction kettle; and (4) cooling to normal temperature to obtain the alkali-free accelerator. The alkali-free accelerator provided by the invention can be applied to concrete. The accelerator has the effect of improving the stability of the accelerator.
本申请涉及速凝剂的领域，具体公开了一种无碱速凝剂，由以下质量份数的原料组成：硫酸铝360‑380份；氟硅酸镁30‑50份；磷酸15‑20份；硫酸钠65‑80份；醇胺38‑46份；促凝剂55‑70份；黄原胶1‑5份；水180‑220份。本申请还公开一种无碱速凝剂的制备方法，包括以下步骤：（1）按配方加入水、硫酸钠以及促凝剂，得到预混合料；（2）然后反应釜加热至48‑52℃，往预混合料中加入氟硅酸镁、硫酸铝以及黄原胶；（3）反应釜加热至65‑70℃，往反应釜中滴入磷酸和醇胺；（4）冷却至常温，即可得无碱速凝剂。本申请的无碱速凝剂可以应用于混凝土中。本申请具有使得速凝剂的稳定性提高的效果。
Alkali-free accelerator as well as preparation method and application thereof
一种无碱速凝剂及其制备方法及其应用
LU WEIXIONG (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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