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Cement-based composite material suitable for high-altitude, large-temperature-difference, dry and salt freezing environments
The invention relates to a cement-based composite material suitable for high-altitude, large-temperature-difference, dry and salt freezing environments, which is prepared from the following components in percentage by mass: 32 to 38 parts of cement, 4 to 10 parts of mineral admixture, 30 to 40 parts of sand, 5 to 10 parts of porous fine particles, 0.1 to 5.0 parts of functional component, 10 to 20 parts of water and 0.5 to 5 parts of fiber. The cement-based composite material has high strength, high ductility, high freezing resistance and high sulfate corrosion resistance, and is suitable for concrete structure post-cast strip pouring, kerf-free pavement connection, concrete structure node reinforcement and other scenes in high-altitude, large-temperature-difference, dry and intense-radiation environments. Compared with an unmodified composite material, the drying shrinkage is reduced by 50%, the frost resistance is improved by 50%, and the sulfate corrosion resistance is improved by 30%.
本发明涉及一种适用于高海拔、大温差、干燥和盐冻环境的水泥基复合材料，按质量百分比计，包含：水泥32～38份、矿物掺合料4～10份、砂30～40份、多孔细颗粒5～10份、功能性组分0.1～5.0份、水10～20份、纤维0.5～5份。上述水泥基复合材料具有高强度、高延性、高抗冻性、高抗硫酸盐侵蚀性，适用于高海拔、大温差、干燥和强辐射环境下混凝土结构后浇带浇筑、无切缝路面连接、混凝土结构结点加固等场景。相比于未改性复合材料，干燥收缩降低50％，抗冻性能提升50％，抗硫酸盐侵蚀性能提升30％。
Cement-based composite material suitable for high-altitude, large-temperature-difference, dry and salt freezing environments
The invention relates to a cement-based composite material suitable for high-altitude, large-temperature-difference, dry and salt freezing environments, which is prepared from the following components in percentage by mass: 32 to 38 parts of cement, 4 to 10 parts of mineral admixture, 30 to 40 parts of sand, 5 to 10 parts of porous fine particles, 0.1 to 5.0 parts of functional component, 10 to 20 parts of water and 0.5 to 5 parts of fiber. The cement-based composite material has high strength, high ductility, high freezing resistance and high sulfate corrosion resistance, and is suitable for concrete structure post-cast strip pouring, kerf-free pavement connection, concrete structure node reinforcement and other scenes in high-altitude, large-temperature-difference, dry and intense-radiation environments. Compared with an unmodified composite material, the drying shrinkage is reduced by 50%, the frost resistance is improved by 50%, and the sulfate corrosion resistance is improved by 30%.
本发明涉及一种适用于高海拔、大温差、干燥和盐冻环境的水泥基复合材料，按质量百分比计，包含：水泥32～38份、矿物掺合料4～10份、砂30～40份、多孔细颗粒5～10份、功能性组分0.1～5.0份、水10～20份、纤维0.5～5份。上述水泥基复合材料具有高强度、高延性、高抗冻性、高抗硫酸盐侵蚀性，适用于高海拔、大温差、干燥和强辐射环境下混凝土结构后浇带浇筑、无切缝路面连接、混凝土结构结点加固等场景。相比于未改性复合材料，干燥收缩降低50％，抗冻性能提升50％，抗硫酸盐侵蚀性能提升30％。
Cement-based composite material suitable for high-altitude, large-temperature-difference, dry and salt freezing environments
一种适用于高海拔、大温差、干燥和盐冻环境的水泥基复合材料
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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