Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Physical self-early-strength slump retaining agent as well as preparation method and application thereof
The invention is applicable to the technical field of slump retaining agents, and provides a physical self-early-strength slump retaining agent, which is prepared from the following raw materials in parts by weight: 20 to 30 parts of stone powder, 10 to 20 parts of water, 1 to 20 parts of polycarboxylate superplasticizer mother liquor, a dispersing agent and an air entraining agent, wherein the weight part of the dispersing agent is 0.1-0.5 permillage of the weight part of the stone powder, and the weight part of the air entraining agent is 0.05-0.1 permillage of the weight part of the stone powder. The invention also provides a preparation method of the physical self-early-strength slump retaining agent. The invention also provides application of the physical self-early-strength slump retaining agent in preparation of concrete. Molecules of slurry are activated in a heating and stirring manner, so that more useful components are inserted into pore structures of the stone powder, the curing efficiency of the stone powder and the production efficiency of the slump retaining agent are improved, the particle size of the stone powder is reduced through mechanical grinding, a larger space is provided for a water reducing component, the early hydration rate of a cement-based material is increased, and the water reducing effect is improved. By adding the dispersing agent and the air entraining agent, the stability and the slump retaining effect of the slump retaining agent are improved, and the preparation is simple.
本发明适用于保坍剂技术领域，提供了一种物理型自早强保坍剂，包括以下重量份的原料：石粉20‑30份、水10‑20份、聚羧酸减水剂母液1‑20份、分散剂和引气剂；其中，所述分散剂重量份为石粉重量份的0.1‑0.5‰，所述引气剂重量份为石粉重量份的0.05‑0.1‰。本发明还提供了一种物理型自早强保坍剂的制备方法。本发明还提供了一种物理型自早强保坍剂在制备混凝土中的应用。本发明通过加热和搅拌的方式激活浆体的分子，使更多的有用组分插入石粉的孔隙结构中，提高石粉的固化效率和保坍剂的生产效率，通过机械研磨降低石粉粒径，为减水组分提供更大的空间，提高水泥基材料的早期水化速率，通过加入分散剂和引气剂提高保坍剂的稳定性和保坍效果，且制备简单。
Physical self-early-strength slump retaining agent as well as preparation method and application thereof
The invention is applicable to the technical field of slump retaining agents, and provides a physical self-early-strength slump retaining agent, which is prepared from the following raw materials in parts by weight: 20 to 30 parts of stone powder, 10 to 20 parts of water, 1 to 20 parts of polycarboxylate superplasticizer mother liquor, a dispersing agent and an air entraining agent, wherein the weight part of the dispersing agent is 0.1-0.5 permillage of the weight part of the stone powder, and the weight part of the air entraining agent is 0.05-0.1 permillage of the weight part of the stone powder. The invention also provides a preparation method of the physical self-early-strength slump retaining agent. The invention also provides application of the physical self-early-strength slump retaining agent in preparation of concrete. Molecules of slurry are activated in a heating and stirring manner, so that more useful components are inserted into pore structures of the stone powder, the curing efficiency of the stone powder and the production efficiency of the slump retaining agent are improved, the particle size of the stone powder is reduced through mechanical grinding, a larger space is provided for a water reducing component, the early hydration rate of a cement-based material is increased, and the water reducing effect is improved. By adding the dispersing agent and the air entraining agent, the stability and the slump retaining effect of the slump retaining agent are improved, and the preparation is simple.
本发明适用于保坍剂技术领域，提供了一种物理型自早强保坍剂，包括以下重量份的原料：石粉20‑30份、水10‑20份、聚羧酸减水剂母液1‑20份、分散剂和引气剂；其中，所述分散剂重量份为石粉重量份的0.1‑0.5‰，所述引气剂重量份为石粉重量份的0.05‑0.1‰。本发明还提供了一种物理型自早强保坍剂的制备方法。本发明还提供了一种物理型自早强保坍剂在制备混凝土中的应用。本发明通过加热和搅拌的方式激活浆体的分子，使更多的有用组分插入石粉的孔隙结构中，提高石粉的固化效率和保坍剂的生产效率，通过机械研磨降低石粉粒径，为减水组分提供更大的空间，提高水泥基材料的早期水化速率，通过加入分散剂和引气剂提高保坍剂的稳定性和保坍效果，且制备简单。
Physical self-early-strength slump retaining agent as well as preparation method and application thereof
一种物理型自早强保坍剂及其制备方法、应用
XU WEI (Autor:in) / WU LEI (Autor:in) / PANG CHUNFEI (Autor:in) / JING ZHE (Autor:in) / TAN YUANYUAN (Autor:in) / WANG JIESHENG (Autor:in) / LI GUOHAO (Autor:in)
13.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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