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A platform for research: civil engineering, architecture and urbanism
Ecological early-strength ultra-high-performance concrete prepared from copper tailing sand loaded nano-particles
The invention discloses ecological early-strength ultra-high-performance concrete prepared from copper tailing sand loaded nano-particles. The ecological early-strength ultra-high-performance concrete is prepared from aggregate, a gel material, water, steel fibers and a water reducing agent, the aggregate comprises a copper tailing sand nano-carrier, quartz powder and quartz sand; the mass ratio of the copper tailing sand nano-load body is 30-50% of the total amount of the aggregate, the mass ratio of the quartz powder is 5-15% of the total amount of the aggregate, and the mass ratio of the quartz sand is 40-50% of the total amount of the aggregate; the mass ratios of the cement, the fly ash and the silica fume are respectively 60-70%, 5-15% and 15-25% of the total mass of the cementing material; the mass of the water is 16%-20% of the mass of the cementing material; the volume mixing amount of the steel fibers accounts for 1-3% of the total volume of the ultra-high performance concrete; and the mass of the water reducing agent is 1.5-3% of the mass of the cementing material. According to the invention, the early strength is improved, the grain composition of UHPC is optimized, and the production cost of UHPC is reduced.
本发明公开了一种铜尾矿砂负载纳米颗粒制备生态型早强超高性能混凝土，包括骨料、凝胶材料、水、钢纤维和减水剂；所述骨料包括铜尾矿砂纳米负载体、石英粉和石英砂；铜尾矿砂纳米负载体的质量占比为骨料总量的30‑50％，石英粉的质量占比为骨料总量的5‑15％，石英砂的质量占比为骨料总量的40‑50％；水泥、粉煤灰、硅灰的质量占比分别为胶凝材料总量的60‑70％、5‑15％和15‑25％；水的质量为胶凝材料质量的16％‑20％；钢纤维体积掺量占超高性能混凝土总体积的1‑3％；减水剂的质量为胶凝材料质量的1.5‑3％。本发明具有提高早期强度，优化UHPC颗粒级配组成，降低UHPC的生产成本。
Ecological early-strength ultra-high-performance concrete prepared from copper tailing sand loaded nano-particles
The invention discloses ecological early-strength ultra-high-performance concrete prepared from copper tailing sand loaded nano-particles. The ecological early-strength ultra-high-performance concrete is prepared from aggregate, a gel material, water, steel fibers and a water reducing agent, the aggregate comprises a copper tailing sand nano-carrier, quartz powder and quartz sand; the mass ratio of the copper tailing sand nano-load body is 30-50% of the total amount of the aggregate, the mass ratio of the quartz powder is 5-15% of the total amount of the aggregate, and the mass ratio of the quartz sand is 40-50% of the total amount of the aggregate; the mass ratios of the cement, the fly ash and the silica fume are respectively 60-70%, 5-15% and 15-25% of the total mass of the cementing material; the mass of the water is 16%-20% of the mass of the cementing material; the volume mixing amount of the steel fibers accounts for 1-3% of the total volume of the ultra-high performance concrete; and the mass of the water reducing agent is 1.5-3% of the mass of the cementing material. According to the invention, the early strength is improved, the grain composition of UHPC is optimized, and the production cost of UHPC is reduced.
本发明公开了一种铜尾矿砂负载纳米颗粒制备生态型早强超高性能混凝土，包括骨料、凝胶材料、水、钢纤维和减水剂；所述骨料包括铜尾矿砂纳米负载体、石英粉和石英砂；铜尾矿砂纳米负载体的质量占比为骨料总量的30‑50％，石英粉的质量占比为骨料总量的5‑15％，石英砂的质量占比为骨料总量的40‑50％；水泥、粉煤灰、硅灰的质量占比分别为胶凝材料总量的60‑70％、5‑15％和15‑25％；水的质量为胶凝材料质量的16％‑20％；钢纤维体积掺量占超高性能混凝土总体积的1‑3％；减水剂的质量为胶凝材料质量的1.5‑3％。本发明具有提高早期强度，优化UHPC颗粒级配组成，降低UHPC的生产成本。
Ecological early-strength ultra-high-performance concrete prepared from copper tailing sand loaded nano-particles
铜尾矿砂负载纳米颗粒制备生态型早强超高性能混凝土
CHEN FEIXIANG (author) / JIN LANG (author) / ZHANG GUOZHI (author) / LIU YONG (author) / FANG HUI (author) / LIU KEXIN (author) / WEN QING (author) / WEI KAI (author) / MING XIN (author) / XIAO JI (author)
2024-01-26
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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