Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special water reducing agent for sprayed concrete and preparation device of special water reducing agent
The invention discloses a special water reducing agent for sprayed concrete and a preparation device thereof, and belongs to the technical field of water reducing agent preparation, and the special water reducing agent comprises 6%-12% of polycarboxylic acid water reducing mother liquor, 4%-10% of polycarboxylic acid slump retaining mother liquor, 0.1%-0.3% of tackifier, 0.5%-1.0% of dispersant, 1%-3% of coagulant, 0-0.5% of air entraining agent, 0-0.1% of defoaming agent and the balance of water. On the basis of realizing the production of the water reducing agent, the water reducing agent is rapidly hydrated after encountering a liquid accelerator, so that the setting time of sprayed concrete is shortened, the rebound amount of the concrete is reduced, the mixing amount of the accelerator can be reduced, and the later strength and durability of the concrete are further guaranteed.
本发明公开了一种喷射混凝土专用减水剂及其制备装置，属于减水剂制备技术领域，包括：聚羧酸减水母液6％～12％，聚羧酸保坍母液4％～10％，增粘剂0.1％～0.3％，分散剂0.5％～1.0％，促凝剂1％～3％，引气剂0～0.5％，消泡剂0～0.1％，水余量。本发明在实现生产减水剂的基础上，使减水剂在遇到液体速凝剂后再快速水化，从而缩短喷射混凝土的凝结时间，降低混凝土回弹量，并可以减少速凝剂的掺量，进而保障混凝土的后期强度和耐久性。
Special water reducing agent for sprayed concrete and preparation device of special water reducing agent
The invention discloses a special water reducing agent for sprayed concrete and a preparation device thereof, and belongs to the technical field of water reducing agent preparation, and the special water reducing agent comprises 6%-12% of polycarboxylic acid water reducing mother liquor, 4%-10% of polycarboxylic acid slump retaining mother liquor, 0.1%-0.3% of tackifier, 0.5%-1.0% of dispersant, 1%-3% of coagulant, 0-0.5% of air entraining agent, 0-0.1% of defoaming agent and the balance of water. On the basis of realizing the production of the water reducing agent, the water reducing agent is rapidly hydrated after encountering a liquid accelerator, so that the setting time of sprayed concrete is shortened, the rebound amount of the concrete is reduced, the mixing amount of the accelerator can be reduced, and the later strength and durability of the concrete are further guaranteed.
本发明公开了一种喷射混凝土专用减水剂及其制备装置，属于减水剂制备技术领域，包括：聚羧酸减水母液6％～12％，聚羧酸保坍母液4％～10％，增粘剂0.1％～0.3％，分散剂0.5％～1.0％，促凝剂1％～3％，引气剂0～0.5％，消泡剂0～0.1％，水余量。本发明在实现生产减水剂的基础上，使减水剂在遇到液体速凝剂后再快速水化，从而缩短喷射混凝土的凝结时间，降低混凝土回弹量，并可以减少速凝剂的掺量，进而保障混凝土的后期强度和耐久性。
Special water reducing agent for sprayed concrete and preparation device of special water reducing agent
一种喷射混凝土专用减水剂及其制备装置
SU YIFAN (Autor:in) / HUANG BIN (Autor:in) / GONG MINGZI (Autor:in) / WANG XIAOWEI (Autor:in) / ZHOU RONGGUI (Autor:in) / WANG TAO (Autor:in)
27.10.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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