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A platform for research: civil engineering, architecture and urbanism
High-temperature-resistant ultra-high-performance concrete material and preparation method thereof
The invention belongs to the technical field of concrete materials, and particularly relates to a high-temperature-resistant ultra-high-performance concrete material and a preparation method thereof. The concrete material is prepared from a concrete matrix and fibers, the volume percentage of the fibers to the concrete matrix is (2.1-2.4): 100, the fibers comprise copper-plated steel fibers, polypropylene fibers and calcium sulfate whiskers, and the volume ratio of the copper-plated steel fibers to the polypropylene fibers to the calcium sulfate whiskers is (1.5-1.7): (0.3-0.5): (1-4). The calcium sulfate whiskers, the polypropylene fibers and the copper-plated steel fibers are added, so that the reinforcing and toughening effects of the steel fibers on the concrete material and the improvement effect of the polypropylene fibers on the anti-burst performance of the ultra-high-performance concrete are ensured, and the bearing capacity and the anti-burst performance of the concrete material at high temperature are improved; and meanwhile, due to excellent durability and low cost, the composite material has good market popularization potential.
本发明属于混凝土材料技术领域，具体涉及一种耐高温超高性能混凝土材料及其制备方法。所述混凝土材料制备原料包括混凝土基体和纤维，纤维与混凝土基体之间的体积百分比为2.1～2.4：100，纤维包括镀铜钢纤维、聚丙烯纤维和硫酸钙晶须，镀铜钢纤维、聚丙烯纤维和硫酸钙晶须的体积比为1.5～1.7:0.3～0.5:1～4。本发明由于加入硫酸钙晶须、聚丙烯纤维和镀铜钢纤维，保证钢纤维对混凝土材料的增强增韧作用，以及聚丙烯纤维对超高性能混凝土抗爆裂性能的改善作用，提高混凝土材料在高温下的承载力、抗爆裂性能，同时由于其具有优异的耐久性和低廉的成本，因此具有良好的市场推广潜力。
High-temperature-resistant ultra-high-performance concrete material and preparation method thereof
The invention belongs to the technical field of concrete materials, and particularly relates to a high-temperature-resistant ultra-high-performance concrete material and a preparation method thereof. The concrete material is prepared from a concrete matrix and fibers, the volume percentage of the fibers to the concrete matrix is (2.1-2.4): 100, the fibers comprise copper-plated steel fibers, polypropylene fibers and calcium sulfate whiskers, and the volume ratio of the copper-plated steel fibers to the polypropylene fibers to the calcium sulfate whiskers is (1.5-1.7): (0.3-0.5): (1-4). The calcium sulfate whiskers, the polypropylene fibers and the copper-plated steel fibers are added, so that the reinforcing and toughening effects of the steel fibers on the concrete material and the improvement effect of the polypropylene fibers on the anti-burst performance of the ultra-high-performance concrete are ensured, and the bearing capacity and the anti-burst performance of the concrete material at high temperature are improved; and meanwhile, due to excellent durability and low cost, the composite material has good market popularization potential.
本发明属于混凝土材料技术领域，具体涉及一种耐高温超高性能混凝土材料及其制备方法。所述混凝土材料制备原料包括混凝土基体和纤维，纤维与混凝土基体之间的体积百分比为2.1～2.4：100，纤维包括镀铜钢纤维、聚丙烯纤维和硫酸钙晶须，镀铜钢纤维、聚丙烯纤维和硫酸钙晶须的体积比为1.5～1.7:0.3～0.5:1～4。本发明由于加入硫酸钙晶须、聚丙烯纤维和镀铜钢纤维，保证钢纤维对混凝土材料的增强增韧作用，以及聚丙烯纤维对超高性能混凝土抗爆裂性能的改善作用，提高混凝土材料在高温下的承载力、抗爆裂性能，同时由于其具有优异的耐久性和低廉的成本，因此具有良好的市场推广潜力。
High-temperature-resistant ultra-high-performance concrete material and preparation method thereof
一种耐高温超高性能混凝土材料及其制备方法
ZHANG BO (author) / LUO YIMING (author) / WU SHOUJUN (author) / LIU YANYU (author) / ZHANG QINGYU (author) / ZHANG HAIYAN (author) / YAO RUFANG (author) / JIANG JIANMIN (author) / KIM WOOK-YONG (author) / MA YUE (author)
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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