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A platform for research: civil engineering, architecture and urbanism
Modified mineral powder-doped steam-curing-free ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of ultra-high performance concrete, and discloses modified mineral powder doped steam-curing-free ultra-high performance concrete in order to solve the problems of high principle cost, complex curing method and high curing cost of the ultra-high performance concrete in the prior art. Comprising cement, modified mineral powder, silica fume, quartz sand, water, water reducing agent powder, a shrinkage reducing agent and steel fibers, the mass ratio of the cement to the modified mineral powder to the silica fume to the quartz sand to the water to the water reducing agent powder to the shrinkage reducing agent is 1: (0.4-0.8): (0.1-0.3): (1.3-1.6): (0.2-0.3): (0.012-0.02): (0.006-0.01), and the volume mixing amount of the steel fibers is 1-3% of the total volume of the concrete. The ultra-high performance concrete is low in cost, does not need steam curing, and has good mechanical properties and long service life. The invention also discloses a preparation method of the ultra-high performance concrete. The method has simple steps.
本发明涉及超高性能混凝土技术领域，为解决现有技术下超高性能混凝土的原理成本较高，养护方法复杂且养护成本高的问题，公开了一种掺改性矿粉免蒸养的超高性能混凝土，包括水泥、改性矿粉、硅灰、石英砂、水、减水剂粉剂、减缩剂和钢纤维，其中水泥、改性矿粉、硅灰、石英砂、水、减水剂粉剂和减缩剂的质量比为：1∶(0.4～0.8)∶(0.1～0.3)∶(1.3～1.6)∶(0.2～0.3)∶(0.012～0.02)：(0.006～0.01)，钢纤维的体积掺量为混凝土总体积的1～3％。该超高性能混凝土成本低，无需使用蒸汽养护，有良好的力学性能和使用寿命。本发明还公开了该超高性能混凝土的制备方法，该方法步骤简便。
Modified mineral powder-doped steam-curing-free ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of ultra-high performance concrete, and discloses modified mineral powder doped steam-curing-free ultra-high performance concrete in order to solve the problems of high principle cost, complex curing method and high curing cost of the ultra-high performance concrete in the prior art. Comprising cement, modified mineral powder, silica fume, quartz sand, water, water reducing agent powder, a shrinkage reducing agent and steel fibers, the mass ratio of the cement to the modified mineral powder to the silica fume to the quartz sand to the water to the water reducing agent powder to the shrinkage reducing agent is 1: (0.4-0.8): (0.1-0.3): (1.3-1.6): (0.2-0.3): (0.012-0.02): (0.006-0.01), and the volume mixing amount of the steel fibers is 1-3% of the total volume of the concrete. The ultra-high performance concrete is low in cost, does not need steam curing, and has good mechanical properties and long service life. The invention also discloses a preparation method of the ultra-high performance concrete. The method has simple steps.
本发明涉及超高性能混凝土技术领域，为解决现有技术下超高性能混凝土的原理成本较高，养护方法复杂且养护成本高的问题，公开了一种掺改性矿粉免蒸养的超高性能混凝土，包括水泥、改性矿粉、硅灰、石英砂、水、减水剂粉剂、减缩剂和钢纤维，其中水泥、改性矿粉、硅灰、石英砂、水、减水剂粉剂和减缩剂的质量比为：1∶(0.4～0.8)∶(0.1～0.3)∶(1.3～1.6)∶(0.2～0.3)∶(0.012～0.02)：(0.006～0.01)，钢纤维的体积掺量为混凝土总体积的1～3％。该超高性能混凝土成本低，无需使用蒸汽养护，有良好的力学性能和使用寿命。本发明还公开了该超高性能混凝土的制备方法，该方法步骤简便。
Modified mineral powder-doped steam-curing-free ultra-high performance concrete and preparation method thereof
一种掺改性矿粉免蒸养的超高性能混凝土及其制备方法
ZHANG HUAXIAN (author) / HU JINGCHAO (author) / YU CONGDI (author) / LOU XIAOQIANG (author) / ZHANG YAO (author) / WANG LINGBO (author) / ZHOU BIN (author) / SUN KEJIA (author) / WANG JIE (author) / XIE GAOSHENG (author)
2022-11-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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