A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Anticorrosive concrete additive and preparation method thereof
The invention relates to the technical field of chemical additives of building materials, in particular to an anti-corrosion concrete additive and a preparation method thereof. The concrete additive comprises the following components in parts by weight: 40-80 parts of fly ash, 10-20 parts of modified plant fibers, 5-8 parts of a water reducing agent, 3-6 parts of inorganic salt and 10-30 parts of water, and the modified plant fibers are obtained by grafting and modifying semi-carbonized plant fibers and fluorosilane; the water reducing agent is an amphoteric polycarboxylic acid water reducing agent. In the anticorrosive concrete additive provided by the invention, concrete pores are filled with the fly ash, so that the microstructure is improved; the modified plant fiber enhances the mechanical property and crack resistance of the concrete; the amphoteric polycarboxylate superplasticizer not only improves the workability of the concrete, but also forms a protective film on the surface of the steel bar; the inorganic salt further enhances the impermeability of the concrete, and the additive can comprehensively improve the comprehensive performance of the concrete, especially the corrosion resistance and the service life of the concrete in a severe environment through multi-component compounding.
本发明涉及建筑材料化学添加剂技术领域，尤其涉及一种防腐混凝土添加剂及其制备方法。所述混凝土添加剂，按重量份数计，包括粉煤灰40‑80份、改性植物纤维10‑20份、减水剂5‑8份、无机盐3‑6份和水10‑30份，所述改性植物纤维由半碳化处理的植物纤维与氟硅烷接枝改性得到；所述减水剂为两性聚羧酸减水剂。本发明提供的防腐混凝土添加剂中，粉煤灰填充混凝土孔隙，改善了微观结构；改性植物纤维增强了混凝土的力学性能和抗裂性；两性聚羧酸减水剂不仅改善了混凝土的工作性，还在钢筋表面形成保护膜；无机盐则进一步增强了混凝土的抗渗性，多组分复合使添加剂能够全面提升混凝土的综合性能，尤其是在恶劣环境下的防腐能力和使用寿命。
Anticorrosive concrete additive and preparation method thereof
The invention relates to the technical field of chemical additives of building materials, in particular to an anti-corrosion concrete additive and a preparation method thereof. The concrete additive comprises the following components in parts by weight: 40-80 parts of fly ash, 10-20 parts of modified plant fibers, 5-8 parts of a water reducing agent, 3-6 parts of inorganic salt and 10-30 parts of water, and the modified plant fibers are obtained by grafting and modifying semi-carbonized plant fibers and fluorosilane; the water reducing agent is an amphoteric polycarboxylic acid water reducing agent. In the anticorrosive concrete additive provided by the invention, concrete pores are filled with the fly ash, so that the microstructure is improved; the modified plant fiber enhances the mechanical property and crack resistance of the concrete; the amphoteric polycarboxylate superplasticizer not only improves the workability of the concrete, but also forms a protective film on the surface of the steel bar; the inorganic salt further enhances the impermeability of the concrete, and the additive can comprehensively improve the comprehensive performance of the concrete, especially the corrosion resistance and the service life of the concrete in a severe environment through multi-component compounding.
本发明涉及建筑材料化学添加剂技术领域，尤其涉及一种防腐混凝土添加剂及其制备方法。所述混凝土添加剂，按重量份数计，包括粉煤灰40‑80份、改性植物纤维10‑20份、减水剂5‑8份、无机盐3‑6份和水10‑30份，所述改性植物纤维由半碳化处理的植物纤维与氟硅烷接枝改性得到；所述减水剂为两性聚羧酸减水剂。本发明提供的防腐混凝土添加剂中，粉煤灰填充混凝土孔隙，改善了微观结构；改性植物纤维增强了混凝土的力学性能和抗裂性；两性聚羧酸减水剂不仅改善了混凝土的工作性，还在钢筋表面形成保护膜；无机盐则进一步增强了混凝土的抗渗性，多组分复合使添加剂能够全面提升混凝土的综合性能，尤其是在恶劣环境下的防腐能力和使用寿命。
Anticorrosive concrete additive and preparation method thereof
一种防腐混凝土添加剂及其制备方法
NIE JUNCHENG (author) / HE GUANGHUI (author) / DING SHENGXIANG (author)
2024-12-10
Patent
Electronic Resource
Chinese
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