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A platform for research: civil engineering, architecture and urbanism
Powdery alkali-free accelerator and preparation method thereof
The invention provides a powdery alkali-free accelerator and a preparation method thereof. The powdery alkali-free accelerator is prepared from the following raw materials in parts by weight: 62-80 parts of a coagulant, 5-12 parts of modified nano ettringite, 4-10 parts of fluoride, 4-8 parts of a complexing agent, 2-3 parts of an early strength agent, 2-3 parts of a pH regulator, 1-2 parts of a stabilizer, 0.5-1 part of a viscosity regulator and 0.01-0.02 part of a defoaming agent. The powdery alkali-free accelerator is prepared from the raw materials, the early strength of sprayed concrete can be effectively improved, and the rebound rate is reduced.
本发明提供了一种粉状无碱速凝剂及其制备方法，所述粉状无碱速凝剂的制备原料按重量份计包括：促凝剂62～80份，改性纳米钙矾石5～12份，氟化物4～10份，络合剂4～8份，早强剂2～3份，pH调节剂2～3份，稳定剂1～2份，粘度调节剂0.5～1份，消泡剂0.01～0.02份。该粉状无碱速凝剂采用上述原料制备，可以有效提升喷射混凝土的早期强度，降低回弹率。
Powdery alkali-free accelerator and preparation method thereof
The invention provides a powdery alkali-free accelerator and a preparation method thereof. The powdery alkali-free accelerator is prepared from the following raw materials in parts by weight: 62-80 parts of a coagulant, 5-12 parts of modified nano ettringite, 4-10 parts of fluoride, 4-8 parts of a complexing agent, 2-3 parts of an early strength agent, 2-3 parts of a pH regulator, 1-2 parts of a stabilizer, 0.5-1 part of a viscosity regulator and 0.01-0.02 part of a defoaming agent. The powdery alkali-free accelerator is prepared from the raw materials, the early strength of sprayed concrete can be effectively improved, and the rebound rate is reduced.
本发明提供了一种粉状无碱速凝剂及其制备方法，所述粉状无碱速凝剂的制备原料按重量份计包括：促凝剂62～80份，改性纳米钙矾石5～12份，氟化物4～10份，络合剂4～8份，早强剂2～3份，pH调节剂2～3份，稳定剂1～2份，粘度调节剂0.5～1份，消泡剂0.01～0.02份。该粉状无碱速凝剂采用上述原料制备，可以有效提升喷射混凝土的早期强度，降低回弹率。
Powdery alkali-free accelerator and preparation method thereof
粉状无碱速凝剂及其制备方法
ZHAO MINGMIN (author) / TENG WENSHENG (author) / HUANG YUMEI (author) / WANG JINCHUN (author) / WANG YUQIAN (author) / WANG LONGFEI (author) / LIU JIANGTAO (author) / LIU XUFEI (author) / LIU KUNSONG (author) / DU WENBIN (author)
2023-10-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Powdery alkali-free accelerator and preparation method thereof
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