A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of sulfate-corrosion-resistant high-durability concrete, and particularly relates to the technical field of concrete preparation. According to the sulfate-corrosion-resistant high-durability concrete prepared according to the raw material formula, the fluidity and slump of the concrete can be greatly improved, meanwhile, the mixing water consumption can be effectively reduced, the working performance of the concrete can be remarkably improved, and by conducting chemical modification on the reed pulp, the durability of the concrete is improved. The existing cellulose resource can be fully and effectively utilized, and the environmental pollution caused by improper treatment can be reduced; more importantly, the prepared composite water reducing agent is subjected to etherification reaction with hydroxyl on a cellulose molecular chain through an etherifying agent, a propyl sulfonic acid group is introduced, and a crystalline region of cellulose is destroyed, so that the water solubility of a product is improved, a good water reducing effect on cement paste is achieved, and the purposes of reducing the cost and optimizing the performance can be achieved.
本发明公开了一种抗硫酸盐侵蚀的高耐久混凝土的制备方法，具体涉及混凝土制备技术领域。本发明的原料配方所制备出的抗硫酸盐侵蚀的高耐久混凝土，可以大幅度提高混凝土的流动性和坍落度，同时能够有效降低拌合用水量，显著改善混凝土的工作性能，并且通过对芦苇浆粕进行化学改性，可以对现有的纤维素资源进行更加充分有效的利用，而且还可以减少因处理不当而造成的环境污染；更重要的是，所制备的复合减水剂通过醚化剂与纤维素分子链上的羟基发生醚化反应，引入了丙基磺酸基团，破坏了纤维素的结晶区，从而有利于产物水溶性的提高，对水泥净浆表现出良好的减水作用，进而可达到降低成本、优化性能的目的。
The invention discloses a preparation method of sulfate-corrosion-resistant high-durability concrete, and particularly relates to the technical field of concrete preparation. According to the sulfate-corrosion-resistant high-durability concrete prepared according to the raw material formula, the fluidity and slump of the concrete can be greatly improved, meanwhile, the mixing water consumption can be effectively reduced, the working performance of the concrete can be remarkably improved, and by conducting chemical modification on the reed pulp, the durability of the concrete is improved. The existing cellulose resource can be fully and effectively utilized, and the environmental pollution caused by improper treatment can be reduced; more importantly, the prepared composite water reducing agent is subjected to etherification reaction with hydroxyl on a cellulose molecular chain through an etherifying agent, a propyl sulfonic acid group is introduced, and a crystalline region of cellulose is destroyed, so that the water solubility of a product is improved, a good water reducing effect on cement paste is achieved, and the purposes of reducing the cost and optimizing the performance can be achieved.
本发明公开了一种抗硫酸盐侵蚀的高耐久混凝土的制备方法，具体涉及混凝土制备技术领域。本发明的原料配方所制备出的抗硫酸盐侵蚀的高耐久混凝土，可以大幅度提高混凝土的流动性和坍落度，同时能够有效降低拌合用水量，显著改善混凝土的工作性能，并且通过对芦苇浆粕进行化学改性，可以对现有的纤维素资源进行更加充分有效的利用，而且还可以减少因处理不当而造成的环境污染；更重要的是，所制备的复合减水剂通过醚化剂与纤维素分子链上的羟基发生醚化反应，引入了丙基磺酸基团，破坏了纤维素的结晶区，从而有利于产物水溶性的提高，对水泥净浆表现出良好的减水作用，进而可达到降低成本、优化性能的目的。
Preparation method of sulfate-erosion-resistant high-durability concrete
一种抗硫酸盐侵蚀的高耐久混凝土的制备方法
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of sulfate-erosion-resistant concrete
| European Patent Office | 2024
| European Patent Office | 2021
Sulfate-erosion-resistant concrete and preparation method thereof
| European Patent Office | 2024
Sulfate-erosion-resistant concrete admixture, preparation method thereof and concrete
| European Patent Office | 2022
Sulfate-erosion-resistant concrete preservative and preparation method thereof
| European Patent Office | 2024