Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-alkali waterproof anti-crack expanding agent
The invention relates to the technical field of concrete additives, and provides a low-alkali waterproof anti-crack expanding agent. The low-alkali waterproof anti-cracking expanding agent comprises the following components in parts by weight: 25-40 parts of calcium oxide clinker, 30-50 parts of calcium sulphoaluminate clinker, 10-20 parts of first-grade fly ash, 6-11 parts of gypsum, 10-22 parts of modified mineral powder, 7-10 parts of a modified sponge iron-loaded expansion source and 1-3 parts of a polycarboxylate superplasticizer. The formula of the expanding agent is optimized and improved, and the activated mineral powder and the modified supported sponge iron expansion source are designed, so the dispersity is high, and the interaction activity is high; the effect and durability of the expanding agent are effectively improved, the concrete workability is good, and the restrained expansion rate is remarkably improved; meanwhile, the compressive strength is also improved, the comprehensive performance is better, and the expanding agent is worthy of application and popularization.
本发明涉及混凝土添加剂技术领域，提出了一种低碱防水抗裂膨胀剂，该低碱防水抗裂膨胀剂包括以下重量份数组分，氧化钙熟料25‑40份、硫铝酸钙熟料30‑50份、一级粉煤灰10‑20份、石膏6‑11份、改性矿粉10‑22份、改性负载海绵铁膨胀源7‑10份、聚羧酸减水剂1‑3份，本发明通过对膨胀剂配方进行优化改进，设计活化矿粉和改性负载海绵铁膨胀源，分散性强，交互活性高，有效提高了膨胀剂的效用和持久性，混凝土和易性好，限制膨胀率显著改善，同时抗压强度也有所提高，综合性能更佳，值得推广应用。
Low-alkali waterproof anti-crack expanding agent
The invention relates to the technical field of concrete additives, and provides a low-alkali waterproof anti-crack expanding agent. The low-alkali waterproof anti-cracking expanding agent comprises the following components in parts by weight: 25-40 parts of calcium oxide clinker, 30-50 parts of calcium sulphoaluminate clinker, 10-20 parts of first-grade fly ash, 6-11 parts of gypsum, 10-22 parts of modified mineral powder, 7-10 parts of a modified sponge iron-loaded expansion source and 1-3 parts of a polycarboxylate superplasticizer. The formula of the expanding agent is optimized and improved, and the activated mineral powder and the modified supported sponge iron expansion source are designed, so the dispersity is high, and the interaction activity is high; the effect and durability of the expanding agent are effectively improved, the concrete workability is good, and the restrained expansion rate is remarkably improved; meanwhile, the compressive strength is also improved, the comprehensive performance is better, and the expanding agent is worthy of application and popularization.
本发明涉及混凝土添加剂技术领域，提出了一种低碱防水抗裂膨胀剂，该低碱防水抗裂膨胀剂包括以下重量份数组分，氧化钙熟料25‑40份、硫铝酸钙熟料30‑50份、一级粉煤灰10‑20份、石膏6‑11份、改性矿粉10‑22份、改性负载海绵铁膨胀源7‑10份、聚羧酸减水剂1‑3份，本发明通过对膨胀剂配方进行优化改进，设计活化矿粉和改性负载海绵铁膨胀源，分散性强，交互活性高，有效提高了膨胀剂的效用和持久性，混凝土和易性好，限制膨胀率显著改善，同时抗压强度也有所提高，综合性能更佳，值得推广应用。
Low-alkali waterproof anti-crack expanding agent
一种低碱防水抗裂膨胀剂
ZHANG JINFENG (Autor:in) / HU YUTIAN (Autor:in) / PENG XIONGHUA (Autor:in)
03.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
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