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A platform for research: civil engineering, architecture and urbanism
Ultra-high performance concrete with high breaking strength, and preparation method thereof
The invention provides ultra-high performance concrete, which is prepared from the following raw materials in parts by mass: 550 to 850 parts of cement, 150 to 250 parts of silica fume, 100 to 300 parts of ultrafine fly ash, 150 to 300 parts of water, 10 to 30 parts of a polycarboxylate superplasticizer, 1000 to 1500 parts of fine sand and 150 to 250 parts of ultrafine steel fiber, wherein the cement, the silica fume and the ultrafine fly ash are concrete cementing materials, the raw materials further comprise epoxy resin E-51, a curing agent H103B and an active diluent, the mass of the epoxyresin E-51 accounts for 8-20% of the total mass of the concrete cementing material, the mass ratio of the epoxy resin E-51 to the curing agent H103B is 4:1, and the mass ratio of the epoxy resin E-51to the active diluent is (4-5):1. The folding-pressing ratio of the ultra-high performance concrete disclosed by the invention in 60 days can reach about 0.14.
本发明提供一种超高性能混凝土，按质量份计，原料包括：水泥550～850份，硅灰150～250份，超细粉煤灰100～300份，水150～300份，聚羧酸减水剂10～30份，细砂1000～1500份，超细钢纤维150～250份；其中所述水泥、硅灰和超细粉煤灰为混凝土胶凝材料；所述原料还包括环氧树脂E‑51、固化剂H103B和活性稀释剂，所述环氧树脂E‑51的质量为所述混凝土胶凝材料总质量的8～20％，所述环氧树脂E‑51和固化剂H103B的质量比为4:1，所述环氧树脂E‑51和所述活性稀释剂的质量比为4～5:1。本发明所述超高性能混凝土的60天折压比可以达到0.14左右。
Ultra-high performance concrete with high breaking strength, and preparation method thereof
The invention provides ultra-high performance concrete, which is prepared from the following raw materials in parts by mass: 550 to 850 parts of cement, 150 to 250 parts of silica fume, 100 to 300 parts of ultrafine fly ash, 150 to 300 parts of water, 10 to 30 parts of a polycarboxylate superplasticizer, 1000 to 1500 parts of fine sand and 150 to 250 parts of ultrafine steel fiber, wherein the cement, the silica fume and the ultrafine fly ash are concrete cementing materials, the raw materials further comprise epoxy resin E-51, a curing agent H103B and an active diluent, the mass of the epoxyresin E-51 accounts for 8-20% of the total mass of the concrete cementing material, the mass ratio of the epoxy resin E-51 to the curing agent H103B is 4:1, and the mass ratio of the epoxy resin E-51to the active diluent is (4-5):1. The folding-pressing ratio of the ultra-high performance concrete disclosed by the invention in 60 days can reach about 0.14.
本发明提供一种超高性能混凝土，按质量份计，原料包括：水泥550～850份，硅灰150～250份，超细粉煤灰100～300份，水150～300份，聚羧酸减水剂10～30份，细砂1000～1500份，超细钢纤维150～250份；其中所述水泥、硅灰和超细粉煤灰为混凝土胶凝材料；所述原料还包括环氧树脂E‑51、固化剂H103B和活性稀释剂，所述环氧树脂E‑51的质量为所述混凝土胶凝材料总质量的8～20％，所述环氧树脂E‑51和固化剂H103B的质量比为4:1，所述环氧树脂E‑51和所述活性稀释剂的质量比为4～5:1。本发明所述超高性能混凝土的60天折压比可以达到0.14左右。
Ultra-high performance concrete with high breaking strength, and preparation method thereof
一种具有较高抗折强度的超高性能混凝土及其制备方法
XUE WANYIN (author) / PU QI (author) / ZHANG CHENGZHI (author) / DAI DALI (author) / XIE XINRU (author) / XI FEIDA (author)
2021-01-08
Patent
Electronic Resource
Chinese
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