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High-alkalinity high-temperature-resistant ultra-high-performance concrete material and preparation method thereof
The invention discloses a high-alkalinity high-temperature-resistant ultra-high-performance concrete material and a preparation method thereof, the material comprises powder, water, a water reducing agent and fibers, the powder comprises the following components in percentage by mass: 34%-43% of cement, 4%-8% of a silicon-rich mineral admixture, 3%-8% of a high-aluminum mineral admixture and 48%-52% of aggregate; the mass percentage of the water reducing agent relative to the total mass of the powder is 0.78%-1.02%; the water cement ratio is 0.20 to 0.23; the fibers comprise steel fibers and synthetic fibers, the volume percentage of the steel fibers relative to the total volume of the concrete is 2.0-2.4%, and the volume percentage of the synthetic fibers relative to the total volume of the concrete is 0.4-0.7%. The high-temperature-resistant concrete does not burst at the high temperature of 600 DEG C, the compressive strength is not lost, and the breaking strength is reduced by less than 30%.
本发明公开了一种高碱性耐高温超高性能混凝土材料及其制备方法，该材料包括粉料、水、减水剂和纤维，粉料包含以下质量百分含量的组分：水泥为34％～43％，富硅矿物掺合料为4％～8％，高铝矿物掺合料为3％～8％，骨料为48～52％；减水剂相对粉料总质量的质量百分数为0.78％～1.02％；水灰比：0.20～0.23；纤维包括钢纤维和合成纤维，钢纤维相对混凝土总体积的体积百分数为2.0～2.4％，合成纤维相对混凝土总体积的体积百分数为0.4～0.7％。本发明在600℃高温后不发生爆裂，抗压强度不损失，抗折强度降低不到30％。
High-alkalinity high-temperature-resistant ultra-high-performance concrete material and preparation method thereof
The invention discloses a high-alkalinity high-temperature-resistant ultra-high-performance concrete material and a preparation method thereof, the material comprises powder, water, a water reducing agent and fibers, the powder comprises the following components in percentage by mass: 34%-43% of cement, 4%-8% of a silicon-rich mineral admixture, 3%-8% of a high-aluminum mineral admixture and 48%-52% of aggregate; the mass percentage of the water reducing agent relative to the total mass of the powder is 0.78%-1.02%; the water cement ratio is 0.20 to 0.23; the fibers comprise steel fibers and synthetic fibers, the volume percentage of the steel fibers relative to the total volume of the concrete is 2.0-2.4%, and the volume percentage of the synthetic fibers relative to the total volume of the concrete is 0.4-0.7%. The high-temperature-resistant concrete does not burst at the high temperature of 600 DEG C, the compressive strength is not lost, and the breaking strength is reduced by less than 30%.
本发明公开了一种高碱性耐高温超高性能混凝土材料及其制备方法，该材料包括粉料、水、减水剂和纤维，粉料包含以下质量百分含量的组分：水泥为34％～43％，富硅矿物掺合料为4％～8％，高铝矿物掺合料为3％～8％，骨料为48～52％；减水剂相对粉料总质量的质量百分数为0.78％～1.02％；水灰比：0.20～0.23；纤维包括钢纤维和合成纤维，钢纤维相对混凝土总体积的体积百分数为2.0～2.4％，合成纤维相对混凝土总体积的体积百分数为0.4～0.7％。本发明在600℃高温后不发生爆裂，抗压强度不损失，抗折强度降低不到30％。
High-alkalinity high-temperature-resistant ultra-high-performance concrete material and preparation method thereof
一种高碱性耐高温超高性能混凝土材料及其制备方法
GUO LIPING (author) / QIN YAOYI (author) / WU JIANDONG (author)
2022-06-10
Patent
Electronic Resource
Chinese
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