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A platform for research: civil engineering, architecture and urbanism
Superfine iron tailing sand concrete and preparation method thereof
The invention provides superfine iron tailing sand concrete. The superfine iron tailing sand concrete is prepared from the following components in parts by weight: 9-16 parts of cement, 14-15 parts of superfine iron tailing sand, 20-25 parts of natural sand, 10-11 parts of fine stone, 35-38 parts of green gravel, 4-5 parts of fly ash, 5-6 parts of slag powder, 2.3-2.5 parts of a polycarboxylate superplasticizer and 9-10 parts of water, the superfine iron tailing sand is used for replacing 40% of natural sand, so that the performance and the setting time of a concrete mixture are not influenced, and the cost can be saved; by changing the formula of the polycarboxylic acid additive, the ultra-fine and ultra-tailing sand concrete mixture can meet the requirements of pump concrete and the requirements of standard specifications; the performance of a concrete mixture is improved, the slump loss is reduced, the environment is protected, and the sustainable development of the building industry is facilitated.
本发明提供了一种特细铁尾矿砂混凝土，包含如下重量份的成分：水泥9～16份、特细铁尾矿砂14～15份、天然砂20～25份，细石10～11份、青碎石35～38份、粉煤灰4～5份、矿渣粉5～6份、聚羧酸减水剂2.3～2.5份、水9～10份；本发明采用特细铁尾矿砂替代40％天然砂不影响混凝土拌合物性能及凝结时间，可以节约成本；通过改变聚羧酸外加剂配方，可以使特细特尾矿砂混凝土拌合物符合泵送混凝土要求，并且满足标准规范要求；并且提升了混凝土拌合物性能，降低了坍落度损失，利于保护环境，利于建筑行业的可持续发展。
Superfine iron tailing sand concrete and preparation method thereof
The invention provides superfine iron tailing sand concrete. The superfine iron tailing sand concrete is prepared from the following components in parts by weight: 9-16 parts of cement, 14-15 parts of superfine iron tailing sand, 20-25 parts of natural sand, 10-11 parts of fine stone, 35-38 parts of green gravel, 4-5 parts of fly ash, 5-6 parts of slag powder, 2.3-2.5 parts of a polycarboxylate superplasticizer and 9-10 parts of water, the superfine iron tailing sand is used for replacing 40% of natural sand, so that the performance and the setting time of a concrete mixture are not influenced, and the cost can be saved; by changing the formula of the polycarboxylic acid additive, the ultra-fine and ultra-tailing sand concrete mixture can meet the requirements of pump concrete and the requirements of standard specifications; the performance of a concrete mixture is improved, the slump loss is reduced, the environment is protected, and the sustainable development of the building industry is facilitated.
本发明提供了一种特细铁尾矿砂混凝土，包含如下重量份的成分：水泥9～16份、特细铁尾矿砂14～15份、天然砂20～25份，细石10～11份、青碎石35～38份、粉煤灰4～5份、矿渣粉5～6份、聚羧酸减水剂2.3～2.5份、水9～10份；本发明采用特细铁尾矿砂替代40％天然砂不影响混凝土拌合物性能及凝结时间，可以节约成本；通过改变聚羧酸外加剂配方，可以使特细特尾矿砂混凝土拌合物符合泵送混凝土要求，并且满足标准规范要求；并且提升了混凝土拌合物性能，降低了坍落度损失，利于保护环境，利于建筑行业的可持续发展。
Superfine iron tailing sand concrete and preparation method thereof
一种特细铁尾矿砂混凝土及其制备方法
DING LIFANG (author) / CHEN XIANGZHE (author) / YAO ZHIYU (author) / ZHANG SIYU (author) / QIAO ZITENG (author) / SUN ZHIJUN (author) / SUN ZHIBIN (author) / ZHANG MENG (author) / GU YONGLIANG (author) / ZHANG LIN (author)
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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