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A platform for research: civil engineering, architecture and urbanism
Repair mortar suitable for large temperature difference and salt freezing environment and preparation method thereof
The invention discloses repair mortar suitable for a large-temperature-difference salt freezing environment and a preparation method of the repair mortar. The repair mortar is prepared by mixing the following raw materials in parts by mass: 15-20 parts of cement, 5-8 parts of a mineral admixture, 40-65 parts of sand, 5-8 parts of porous fine particles, 1.2-4.5 parts of redispersible latex powder, 1.9-3.0 parts of a functional component and 5-12 parts of water. The prepared repair mortar has good freezing resistance, sulfate corrosion resistance, corrosion resistance, permeability resistance, cohesiveness, workability and mechanical properties, can be transported in bags, can be constructed by adding water and stirring on site, can adopt construction processes such as pouring, spraying and slip form, is particularly suitable for concrete structures such as roads, bridges, tunnels and dams under large temperature difference and salt freezing environments, and has a wide application prospect. Compared with unmodified mortar, the anti-freezing performance is improved by 100%, and the sulfate dry-wet cycle resistance is improved by 150%.
本发明公开了一种适用于大温差、盐冻环境的修补砂浆及其制备方法。所述修补砂浆由以下原料按质量比混合而成：水泥15～20份、矿物掺合料5～8份、砂40～65份、多孔细颗粒5～8份、可再分散乳胶粉1.2～4.5份、功能性组分1.9～3.0份、水5～12份。本发明制备出的修补砂浆具有良好的抗冻性、抗硫酸盐侵蚀、防腐、抗渗性、粘结性、工作性以及力学性能，可袋装运输，现场加水搅拌即可施工，可采用浇筑、喷射、滑模等施工工艺，特别适用于大温差、盐冻环境下公路、桥梁、隧道、大坝等混凝土结构，相对于未改性的砂浆，抗冻性能提升了100％，抗硫酸盐干湿循环性能提升了150％。
Repair mortar suitable for large temperature difference and salt freezing environment and preparation method thereof
The invention discloses repair mortar suitable for a large-temperature-difference salt freezing environment and a preparation method of the repair mortar. The repair mortar is prepared by mixing the following raw materials in parts by mass: 15-20 parts of cement, 5-8 parts of a mineral admixture, 40-65 parts of sand, 5-8 parts of porous fine particles, 1.2-4.5 parts of redispersible latex powder, 1.9-3.0 parts of a functional component and 5-12 parts of water. The prepared repair mortar has good freezing resistance, sulfate corrosion resistance, corrosion resistance, permeability resistance, cohesiveness, workability and mechanical properties, can be transported in bags, can be constructed by adding water and stirring on site, can adopt construction processes such as pouring, spraying and slip form, is particularly suitable for concrete structures such as roads, bridges, tunnels and dams under large temperature difference and salt freezing environments, and has a wide application prospect. Compared with unmodified mortar, the anti-freezing performance is improved by 100%, and the sulfate dry-wet cycle resistance is improved by 150%.
本发明公开了一种适用于大温差、盐冻环境的修补砂浆及其制备方法。所述修补砂浆由以下原料按质量比混合而成：水泥15～20份、矿物掺合料5～8份、砂40～65份、多孔细颗粒5～8份、可再分散乳胶粉1.2～4.5份、功能性组分1.9～3.0份、水5～12份。本发明制备出的修补砂浆具有良好的抗冻性、抗硫酸盐侵蚀、防腐、抗渗性、粘结性、工作性以及力学性能，可袋装运输，现场加水搅拌即可施工，可采用浇筑、喷射、滑模等施工工艺，特别适用于大温差、盐冻环境下公路、桥梁、隧道、大坝等混凝土结构，相对于未改性的砂浆，抗冻性能提升了100％，抗硫酸盐干湿循环性能提升了150％。
Repair mortar suitable for large temperature difference and salt freezing environment and preparation method thereof
一种适用于大温差、盐冻环境的修补砂浆及其制备方法
DING XIAOPING (author) / HAO TINGYU (author) / ZHANG RUN (author) / HAN YUDONG (author) / CAO QINGYU (author)
2024-03-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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