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A platform for research: civil engineering, architecture and urbanism
Slope self-compacting concrete and pouring construction method thereof
The invention provides a slope self-compacting concrete. The slope self-compacting concrete is prepared from the following components in parts by weight: 60 to 70 parts of Portland cement, 60 to 100 parts of coarse aggregate, 48 to 78 parts of fine aggregate, 15 to 30 parts of mineral admixture and 0.6 to 2.1 parts of an additive, wherein the water-binder ratio is 0.26 to 0.35; the coarse aggregate is granite stone; the fine aggregate is river sand; the mineral admixture is a mixture of steel slag, fly ash and silicon powder according to a mass ratio of 1: 1: 0.5; the additive is a water reducing agent; and the steel slag is steel slag micro-powder subjected to surface modification by nano silicon dioxide. The steel slag micro-powder is subjected to surface silicon dioxide modification, the volcanic ash activity of the steel slag micro-powder is improved, the steel slag micro-powder can replace a part of a conventional admixture, meanwhile, the early strength of the doped concrete is improved, the application range of the steel slag concrete is expanded, and the production cost is also reduced.
本发明提供一种斜面自密实混凝土，具有以下重量组分组成：硅酸盐水泥60‑70份，粗骨料60‑100份，细骨料48‑78份，矿物掺合料15‑30份，外加剂0.6‑2.1份；水胶比在0.26‑0.35；所述粗骨料为花岗岩石子；所述细骨料为河砂；所述矿物掺和料为钢渣、粉煤灰和硅粉的混合物，其质量比例为1:1:0.5；所述外加剂为减水剂；所述钢渣为纳米二氧化硅表面改性的钢渣微粉。本申请通过对钢渣微粉进行表面二氧化硅改性，提高钢渣微粉的火山灰活性，替代部分常规掺和料，同时提高掺杂混凝土的早期强度，扩展了钢渣混凝土的应用范围，也降低了生产成本。
Slope self-compacting concrete and pouring construction method thereof
The invention provides a slope self-compacting concrete. The slope self-compacting concrete is prepared from the following components in parts by weight: 60 to 70 parts of Portland cement, 60 to 100 parts of coarse aggregate, 48 to 78 parts of fine aggregate, 15 to 30 parts of mineral admixture and 0.6 to 2.1 parts of an additive, wherein the water-binder ratio is 0.26 to 0.35; the coarse aggregate is granite stone; the fine aggregate is river sand; the mineral admixture is a mixture of steel slag, fly ash and silicon powder according to a mass ratio of 1: 1: 0.5; the additive is a water reducing agent; and the steel slag is steel slag micro-powder subjected to surface modification by nano silicon dioxide. The steel slag micro-powder is subjected to surface silicon dioxide modification, the volcanic ash activity of the steel slag micro-powder is improved, the steel slag micro-powder can replace a part of a conventional admixture, meanwhile, the early strength of the doped concrete is improved, the application range of the steel slag concrete is expanded, and the production cost is also reduced.
本发明提供一种斜面自密实混凝土，具有以下重量组分组成：硅酸盐水泥60‑70份，粗骨料60‑100份，细骨料48‑78份，矿物掺合料15‑30份，外加剂0.6‑2.1份；水胶比在0.26‑0.35；所述粗骨料为花岗岩石子；所述细骨料为河砂；所述矿物掺和料为钢渣、粉煤灰和硅粉的混合物，其质量比例为1:1:0.5；所述外加剂为减水剂；所述钢渣为纳米二氧化硅表面改性的钢渣微粉。本申请通过对钢渣微粉进行表面二氧化硅改性，提高钢渣微粉的火山灰活性，替代部分常规掺和料，同时提高掺杂混凝土的早期强度，扩展了钢渣混凝土的应用范围，也降低了生产成本。
Slope self-compacting concrete and pouring construction method thereof
一种斜面自密实混凝土及其浇筑施工方法
MENG FANJUN (author) / WANG FANG (author) / LI QINGTAO (author) / ZHAO GUANGXIN (author) / GAO CHANGGUO (author)
2020-10-16
Patent
Electronic Resource
Chinese
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