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A platform for research: civil engineering, architecture and urbanism
Lead-zinc tailing concrete composite admixture and preparation method thereof
The invention provides a lead-zinc tailing concrete composite admixture. The lead-zinc tailing concrete composite admixture is prepared by mixing lead-zinc tailings, lithium slag, an active mineral admixture and an active exciting agent, the active mineral admixture is one or more of furnace bottom ash, slag powder and silica fume, the specific surface area is larger than or equal to 400 m < 2 >/kg, and the 28d activity index is larger than or equal to 85%. According to the invention, various industrial waste residues are scientifically and effectively ground and mixed, and the activity excitation and composite superimposed effect of each component in cement concrete is fully exerted. The preparation method is simple and easy to implement, and a large amount of lead-zinc tailings can be used for producing the concrete admixture; the prepared lead-zinc tailing composite admixture can replace increasingly scarce fly ash to prepare concrete with different strength grades, can meet various performance index requirements of the concrete, and has a wide application prospect in construction projects. The comprehensive utilization value of the lead-zinc tailings is greatly improved, and good economic benefits and environmental effects are achieved.
本发明提供一种铅锌尾矿混凝土复合掺合料，由铅锌尾矿、锂渣、活性矿物掺合料和活性激发剂为原材料混合制备得到；所述的活性矿物掺合料为炉底灰、矿渣粉、硅灰中的一种或多种，且比表面积≥400m2/kg，28d活性指数≥85%。本发明科学有效的将各种工业废渣经粉磨混合，充分发挥各组分在水泥混凝土中的活性激发及复合叠加效应。本发明制备方法简单易行，可大量利用铅锌尾矿生产混凝土掺合料；所制备的铅锌尾矿复合掺合料可替代日益紧缺的粉煤灰配制不同强度等级的混凝土，并可满足混凝土各项性能指标要求，在建设工程中具有广阔的应用前景。大大提高铅锌尾矿的综合利用价值，具有很好的经济效益和环境效应。
Lead-zinc tailing concrete composite admixture and preparation method thereof
The invention provides a lead-zinc tailing concrete composite admixture. The lead-zinc tailing concrete composite admixture is prepared by mixing lead-zinc tailings, lithium slag, an active mineral admixture and an active exciting agent, the active mineral admixture is one or more of furnace bottom ash, slag powder and silica fume, the specific surface area is larger than or equal to 400 m < 2 >/kg, and the 28d activity index is larger than or equal to 85%. According to the invention, various industrial waste residues are scientifically and effectively ground and mixed, and the activity excitation and composite superimposed effect of each component in cement concrete is fully exerted. The preparation method is simple and easy to implement, and a large amount of lead-zinc tailings can be used for producing the concrete admixture; the prepared lead-zinc tailing composite admixture can replace increasingly scarce fly ash to prepare concrete with different strength grades, can meet various performance index requirements of the concrete, and has a wide application prospect in construction projects. The comprehensive utilization value of the lead-zinc tailings is greatly improved, and good economic benefits and environmental effects are achieved.
本发明提供一种铅锌尾矿混凝土复合掺合料，由铅锌尾矿、锂渣、活性矿物掺合料和活性激发剂为原材料混合制备得到；所述的活性矿物掺合料为炉底灰、矿渣粉、硅灰中的一种或多种，且比表面积≥400m2/kg，28d活性指数≥85%。本发明科学有效的将各种工业废渣经粉磨混合，充分发挥各组分在水泥混凝土中的活性激发及复合叠加效应。本发明制备方法简单易行，可大量利用铅锌尾矿生产混凝土掺合料；所制备的铅锌尾矿复合掺合料可替代日益紧缺的粉煤灰配制不同强度等级的混凝土，并可满足混凝土各项性能指标要求，在建设工程中具有广阔的应用前景。大大提高铅锌尾矿的综合利用价值，具有很好的经济效益和环境效应。
Lead-zinc tailing concrete composite admixture and preparation method thereof
一种铅锌尾矿混凝土复合掺合料及其制备方法
ZENG LIANG (author) / CHAI TIANHONG (author) / XI HAIPING (author) / JIANG JIANSONG (author) / SHI QI (author) / HU BIAO (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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