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Ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete is prepared from the following raw materials: 20%-40% of Portland cement, 5%-10% of silica fume, 2%-6% of fly ash microbeads, 30%-50% of quartz sand, 1%-5% of modified oil shale lightweight aggregate, 0.1%-10% of an internal curing agent, 1%-10% of modified wollastonite superfine fiber powder, 0.1%-1% of a hyperdispersant, 0.1%-1% of a superplasticizer, 3%-8% of copper-plated microfilament steel fibers and the balance of water. The ultra-high performance concrete has the advantages of good fluidity, easy mixing, slow release of internal moisture along with the prolongation of time after molding, great reduction of shrinkage, excellent volume stability and durability, reduction of the self weight and cost of the ultra-high performance concrete, broadening of the application way of the oil shale waste residue, and reduction of environmental pollution.
本发明涉及混凝土技术领域，具体涉及一种超高性能混凝土及其制备方法，按照质量百分比计，制备所述超高性能混凝土的原料包括：硅酸盐水泥20%～40%、硅灰5%～10%、粉煤灰微珠2%～6%、石英砂30%～50%、改性油页岩轻质骨料1%～5%、内养剂0.1%～10%、改性硅灰石超细纤维粉1%～10%、超分散剂0.1%～1%、超塑化剂0.1%～1%、镀铜微丝钢纤维3%～8%、余量为水。该超高性能混凝土流动性好，易拌合，成型后会随着时间的延长缓慢释放内部水分，大幅降低收缩，体积稳定性和耐久性优异，同时降低了超高性能混凝土自重以及成本，拓宽了油页岩废渣的应用途径，减少了环境污染。
Ultra-high performance concrete and preparation method thereof
The invention relates to the technical field of concrete, in particular to ultra-high performance concrete and a preparation method thereof. The ultra-high performance concrete is prepared from the following raw materials: 20%-40% of Portland cement, 5%-10% of silica fume, 2%-6% of fly ash microbeads, 30%-50% of quartz sand, 1%-5% of modified oil shale lightweight aggregate, 0.1%-10% of an internal curing agent, 1%-10% of modified wollastonite superfine fiber powder, 0.1%-1% of a hyperdispersant, 0.1%-1% of a superplasticizer, 3%-8% of copper-plated microfilament steel fibers and the balance of water. The ultra-high performance concrete has the advantages of good fluidity, easy mixing, slow release of internal moisture along with the prolongation of time after molding, great reduction of shrinkage, excellent volume stability and durability, reduction of the self weight and cost of the ultra-high performance concrete, broadening of the application way of the oil shale waste residue, and reduction of environmental pollution.
本发明涉及混凝土技术领域，具体涉及一种超高性能混凝土及其制备方法，按照质量百分比计，制备所述超高性能混凝土的原料包括：硅酸盐水泥20%～40%、硅灰5%～10%、粉煤灰微珠2%～6%、石英砂30%～50%、改性油页岩轻质骨料1%～5%、内养剂0.1%～10%、改性硅灰石超细纤维粉1%～10%、超分散剂0.1%～1%、超塑化剂0.1%～1%、镀铜微丝钢纤维3%～8%、余量为水。该超高性能混凝土流动性好，易拌合，成型后会随着时间的延长缓慢释放内部水分，大幅降低收缩，体积稳定性和耐久性优异，同时降低了超高性能混凝土自重以及成本，拓宽了油页岩废渣的应用途径，减少了环境污染。
Ultra-high performance concrete and preparation method thereof
一种超高性能混凝土及其制备方法
LI GUANJIE (author) / LIU DANYANG (author) / WANG JINGWEI (author) / XIA HONGTU (author) / XU SHOUYAN (author)
2023-10-24
Patent
Electronic Resource
Chinese
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