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A platform for research: civil engineering, architecture and urbanism
STC ultrahigh-toughness concrete and construction and use method thereof
The invention discloses STC ultrahigh-toughness concrete and a construction and use method thereof. The STC ultrahigh-toughness concrete comprises the following components in parts by mass: 800 parts of cement, 1100 parts of quartz sand, 80-100 parts of coal ash, 180-200 parts of mineral powder, 180-200 parts of silica fume, 7-11 parts of a water reducing agent, 1-5 parts of a retarder, 4-7 parts of a slump retaining agent, 0.2 part of a defoaming agent, 150 parts of water and 180 parts of steel fibers. Compared with the prior art, the invention has the advantages of high strength, high performance, high toughness and ultrahigh bending and compressive strength, the compressive strength can reach 180MPa and is far greater than the national standard, the on-site wet mixing processing link is omitted, a small-sized mixing plant does not need to be built on site, one-time stirring forming is realized in a commercial concrete mixing plant, the quality is stable, batch stirring and batch testing are not needed, and the cost is low. The time period from production to pouring use of the STC concrete is greatly shortened, the setting time is as long as 12 hours, and on-site follow-up construction is facilitated.
本发明公开了一种STC超高韧性混凝土及其施工使用方法，其质量份数比例如下：水泥800份、石英砂1100份、煤灰80‑100份、矿粉180‑200份、硅灰180‑200份、减水剂7‑11份、缓凝剂1‑5份、保坍剂4‑7份、消泡剂0.2份、水150份、钢纤维180份。与现有技术相比较，本发明具有高强度、高性能、高韧性、超高抗弯抗压强度，抗压强度能达到180MPa，远大于国家标准，省去了现场湿混加工环节，无需现场建设小型搅拌站，在商品混凝土搅拌站内一次搅拌成型，质量稳定，无需批搅拌和分批测试，大大缩短了STC混凝土的生产至浇筑使用的时间周期，凝结时间长达12个小时，有利于现场后续施工。
STC ultrahigh-toughness concrete and construction and use method thereof
The invention discloses STC ultrahigh-toughness concrete and a construction and use method thereof. The STC ultrahigh-toughness concrete comprises the following components in parts by mass: 800 parts of cement, 1100 parts of quartz sand, 80-100 parts of coal ash, 180-200 parts of mineral powder, 180-200 parts of silica fume, 7-11 parts of a water reducing agent, 1-5 parts of a retarder, 4-7 parts of a slump retaining agent, 0.2 part of a defoaming agent, 150 parts of water and 180 parts of steel fibers. Compared with the prior art, the invention has the advantages of high strength, high performance, high toughness and ultrahigh bending and compressive strength, the compressive strength can reach 180MPa and is far greater than the national standard, the on-site wet mixing processing link is omitted, a small-sized mixing plant does not need to be built on site, one-time stirring forming is realized in a commercial concrete mixing plant, the quality is stable, batch stirring and batch testing are not needed, and the cost is low. The time period from production to pouring use of the STC concrete is greatly shortened, the setting time is as long as 12 hours, and on-site follow-up construction is facilitated.
本发明公开了一种STC超高韧性混凝土及其施工使用方法，其质量份数比例如下：水泥800份、石英砂1100份、煤灰80‑100份、矿粉180‑200份、硅灰180‑200份、减水剂7‑11份、缓凝剂1‑5份、保坍剂4‑7份、消泡剂0.2份、水150份、钢纤维180份。与现有技术相比较，本发明具有高强度、高性能、高韧性、超高抗弯抗压强度，抗压强度能达到180MPa，远大于国家标准，省去了现场湿混加工环节，无需现场建设小型搅拌站，在商品混凝土搅拌站内一次搅拌成型，质量稳定，无需批搅拌和分批测试，大大缩短了STC混凝土的生产至浇筑使用的时间周期，凝结时间长达12个小时，有利于现场后续施工。
STC ultrahigh-toughness concrete and construction and use method thereof
一种STC超高韧性混凝土及其施工使用方法
HE YU (author) / TAO JUN (author) / ZHANG TAO (author) / HU XIAOBO (author) / RAN CHAOLIN (author) / YONG MING (author) / YUE ZHILIANG (author) / TAO JUNXI (author) / YONG QICHAO (author) / ZHONG JUNHAO (author)
2024-04-30
Patent
Electronic Resource
Chinese
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