Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength grouting material modified by anti-sticking polycarboxylate superplasticizer as well as preparation method and application of high-strength grouting material
The invention provides a high-strength grouting material modified by an anti-sticking polycarboxylate superplasticizer as well as a preparation method and application of the high-strength grouting material. The composite cement-based material comprises the following raw materials in parts by mass: 70-80 parts of cement, 3-8 parts of polypropylene fiber, 1-5 parts of gypsum and 5-20 parts of fly ash; the composite admixture comprises the following components in parts by weight: 3-10 parts of a gelatinizing agent, 0.5-2 parts of an anti-sticking polycarboxylic acid water reducing agent and 0.5-2 parts of an accelerator; and 35-48 parts of water. Aiming at the high-viscosity grouting material, a monomer containing a large number of carboxylic acid functional groups is selected, the polycarboxylic acid water reducing agent used in the high-viscosity grouting material is synthesized, the water reducing agent can release a large number of carboxyl groups in the using process, the viscosity of the grouting material is effectively reduced, and the working performance is improved. On the basis that high strength is reserved and viscosity is reduced, the purposes of improving durability, toughness and stability are achieved by optimizing the proportion of the grouting material, meanwhile, industrial waste is added, resources are saved, and the environment is protected.
本发明提供一种利用抗粘性聚羧酸减水剂改性的高强注浆材料及其制备方法和应用。以质量份数计，原料组成包括：复合水泥基材料：水泥70‑80份，聚丙烯纤维3‑8份，石膏1‑5份和粉煤灰5‑20份；复合外加剂：胶凝剂3‑10份，抗粘性聚羧酸减水剂0.5‑2份和速凝剂0.5‑2份；以及水35‑48份。本发明针对高粘度注浆材料，选择含有大量羧酸管能团的单体，合成一种在高黏度注浆材料使用的聚羧酸减水剂，该减水剂可以在使用过程释放出大量羧基，有效降低注浆材料粘度，改善工作性能。本发明在保留高强度、降低粘度的基础上，通过优化注浆材料配比，达到提高耐久性、韧性和稳定性的目的，同时添加工业废物，节约资源和保护环境。
High-strength grouting material modified by anti-sticking polycarboxylate superplasticizer as well as preparation method and application of high-strength grouting material
The invention provides a high-strength grouting material modified by an anti-sticking polycarboxylate superplasticizer as well as a preparation method and application of the high-strength grouting material. The composite cement-based material comprises the following raw materials in parts by mass: 70-80 parts of cement, 3-8 parts of polypropylene fiber, 1-5 parts of gypsum and 5-20 parts of fly ash; the composite admixture comprises the following components in parts by weight: 3-10 parts of a gelatinizing agent, 0.5-2 parts of an anti-sticking polycarboxylic acid water reducing agent and 0.5-2 parts of an accelerator; and 35-48 parts of water. Aiming at the high-viscosity grouting material, a monomer containing a large number of carboxylic acid functional groups is selected, the polycarboxylic acid water reducing agent used in the high-viscosity grouting material is synthesized, the water reducing agent can release a large number of carboxyl groups in the using process, the viscosity of the grouting material is effectively reduced, and the working performance is improved. On the basis that high strength is reserved and viscosity is reduced, the purposes of improving durability, toughness and stability are achieved by optimizing the proportion of the grouting material, meanwhile, industrial waste is added, resources are saved, and the environment is protected.
本发明提供一种利用抗粘性聚羧酸减水剂改性的高强注浆材料及其制备方法和应用。以质量份数计，原料组成包括：复合水泥基材料：水泥70‑80份，聚丙烯纤维3‑8份，石膏1‑5份和粉煤灰5‑20份；复合外加剂：胶凝剂3‑10份，抗粘性聚羧酸减水剂0.5‑2份和速凝剂0.5‑2份；以及水35‑48份。本发明针对高粘度注浆材料，选择含有大量羧酸管能团的单体，合成一种在高黏度注浆材料使用的聚羧酸减水剂，该减水剂可以在使用过程释放出大量羧基，有效降低注浆材料粘度，改善工作性能。本发明在保留高强度、降低粘度的基础上，通过优化注浆材料配比，达到提高耐久性、韧性和稳定性的目的，同时添加工业废物，节约资源和保护环境。
High-strength grouting material modified by anti-sticking polycarboxylate superplasticizer as well as preparation method and application of high-strength grouting material
一种利用抗粘性聚羧酸减水剂改性的高强注浆材料及其制备方法和应用
ZHANG HAIBO (Autor:in) / YANG XU (Autor:in) / QIN GANG (Autor:in) / ZOU DINGHUA (Autor:in) / HE XINGWANG (Autor:in) / ZHANG MENGZHAO (Autor:in)
07.06.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2016