A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a concrete mortar anti-cracking additive and a preparation method thereof. The anti-cracking additive comprises the following raw materials in percentage by weight: 45-55% of fly ash, 8-12% of modified basalt fiber, 3-8% of a high-shrinkage additive, 0.5-0.8% of an air entraining agent, 2-5% of a dispersing agent and the balance of water. The raw materials of the components are easy to obtain, the preparation process is simple, the polyacrylic acid hydrogel is selected as the high-shrinkage additive, and strong interaction is generated between the polyacrylic acid hydrogel and the basalt fibers into which calcium acetate is introduced through modification, so the organization structure of the concrete mortar doped with the additive is strongly shrunk, and the concrete mortar with a high-shrinkage and high-energy-density structure is formed, so that the anti-cracking performance and the application performance of the concrete mortar are greatly improved.
本发明涉及一种混凝土砂浆抗裂添加剂及其制备方法，所述抗裂添加剂包括以下重量百分比的原料：粉煤灰45‑55％、改性玄武岩纤维8‑12％、高收缩添加剂3‑8％、引气剂0.5‑0.8％、分散剂2‑5％，余量为水。本发明的各组分原料易得，制备过程简单，通过选择聚丙烯酸水凝胶作为高收缩添加剂，与经过改性引入乙酸钙的玄武岩纤维之间产生强烈的相互作用，使得掺入该添加剂的混凝土砂浆的组织结构得以强烈收缩，形成具有强收缩、高能量密度结构的混凝土砂浆，进而其防裂性能以及应用性能均有大幅度提升。
The invention relates to a concrete mortar anti-cracking additive and a preparation method thereof. The anti-cracking additive comprises the following raw materials in percentage by weight: 45-55% of fly ash, 8-12% of modified basalt fiber, 3-8% of a high-shrinkage additive, 0.5-0.8% of an air entraining agent, 2-5% of a dispersing agent and the balance of water. The raw materials of the components are easy to obtain, the preparation process is simple, the polyacrylic acid hydrogel is selected as the high-shrinkage additive, and strong interaction is generated between the polyacrylic acid hydrogel and the basalt fibers into which calcium acetate is introduced through modification, so the organization structure of the concrete mortar doped with the additive is strongly shrunk, and the concrete mortar with a high-shrinkage and high-energy-density structure is formed, so that the anti-cracking performance and the application performance of the concrete mortar are greatly improved.
本发明涉及一种混凝土砂浆抗裂添加剂及其制备方法，所述抗裂添加剂包括以下重量百分比的原料：粉煤灰45‑55％、改性玄武岩纤维8‑12％、高收缩添加剂3‑8％、引气剂0.5‑0.8％、分散剂2‑5％，余量为水。本发明的各组分原料易得，制备过程简单，通过选择聚丙烯酸水凝胶作为高收缩添加剂，与经过改性引入乙酸钙的玄武岩纤维之间产生强烈的相互作用，使得掺入该添加剂的混凝土砂浆的组织结构得以强烈收缩，形成具有强收缩、高能量密度结构的混凝土砂浆，进而其防裂性能以及应用性能均有大幅度提升。
Concrete mortar anti-cracking additive and preparation method thereof
| European Patent Office | 2020
Concrete mortar anti-cracking admixture and preparation method thereof
| European Patent Office | 2023
Mortar anti-cracking waterproof powder additive and preparation method thereof
| European Patent Office | 2020
Efficient anti-cracking multifunctional concrete mortar and preparation process thereof
| European Patent Office | 2020
Anti-cracking and anti-cracking plastering mortar and preparation method thereof
| European Patent Office | 2023