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Recycled concrete doped with phosphorus tailing slag-steel slag and preparation method thereof
The invention provides recycled concrete doped with phosphorus tailing slag and steel slag and a preparation method of the recycled concrete, and belongs to the technical field of concrete. The raw materials comprise cement, a natural coarse aggregate, a recycled coarse aggregate, a natural fine aggregate, a phosphorus slag fine aggregate, water, a phosphorus slag and superfine steel slag powder composite admixture and a polycarboxylate superplasticizer according to a ratio of 1: (1.44-1.52): (1.44-1.64): (0-1.18): (0.51-1.69): (0.45-0.65): (0.1-0.2): (0.011-0.027). The natural river sand is partially or completely replaced with the recycled aggregate, the resource utilization level of the building solid waste is improved, the problem of extreme shortage of the natural gravel and the natural river sand at present is solved, meanwhile, the strength of the prepared recycled concrete can meet the strength grade requirement, the concrete production cost of an enterprise is reduced, and the economic benefits of enterprises are improved. And the method has a practical engineering application prospect.
本发明提出了一种掺入磷尾矿渣‑钢渣的再生混凝土及其制备方法，属于混凝土技术领域，按质量比计，原料包括：水泥∶天然粗骨料∶再生粗骨料∶天然细骨料∶磷渣细骨料∶水∶磷渣与超细钢渣粉复合掺合料∶聚羧酸高效减水剂＝1∶(1.44‑1.52)∶(1.44‑1.64)∶(0‑1.18)∶(0.51‑1.69)∶(0.45‑0.65)∶(0.1‑0.2)∶(0.011‑0.027)。本发明采用再生骨料部分或是全部替换天然河砂，不仅提高了建筑固废的资源化利用水平，缓解了目前天然碎石和天然河砂极度短缺的问题，同时制备得到的再生混凝土的强度还可以达到强度等级要求，减轻企业生产混凝土的成本，具有实际的工程应用前景。
Recycled concrete doped with phosphorus tailing slag-steel slag and preparation method thereof
The invention provides recycled concrete doped with phosphorus tailing slag and steel slag and a preparation method of the recycled concrete, and belongs to the technical field of concrete. The raw materials comprise cement, a natural coarse aggregate, a recycled coarse aggregate, a natural fine aggregate, a phosphorus slag fine aggregate, water, a phosphorus slag and superfine steel slag powder composite admixture and a polycarboxylate superplasticizer according to a ratio of 1: (1.44-1.52): (1.44-1.64): (0-1.18): (0.51-1.69): (0.45-0.65): (0.1-0.2): (0.011-0.027). The natural river sand is partially or completely replaced with the recycled aggregate, the resource utilization level of the building solid waste is improved, the problem of extreme shortage of the natural gravel and the natural river sand at present is solved, meanwhile, the strength of the prepared recycled concrete can meet the strength grade requirement, the concrete production cost of an enterprise is reduced, and the economic benefits of enterprises are improved. And the method has a practical engineering application prospect.
本发明提出了一种掺入磷尾矿渣‑钢渣的再生混凝土及其制备方法，属于混凝土技术领域，按质量比计，原料包括：水泥∶天然粗骨料∶再生粗骨料∶天然细骨料∶磷渣细骨料∶水∶磷渣与超细钢渣粉复合掺合料∶聚羧酸高效减水剂＝1∶(1.44‑1.52)∶(1.44‑1.64)∶(0‑1.18)∶(0.51‑1.69)∶(0.45‑0.65)∶(0.1‑0.2)∶(0.011‑0.027)。本发明采用再生骨料部分或是全部替换天然河砂，不仅提高了建筑固废的资源化利用水平，缓解了目前天然碎石和天然河砂极度短缺的问题，同时制备得到的再生混凝土的强度还可以达到强度等级要求，减轻企业生产混凝土的成本，具有实际的工程应用前景。
Recycled concrete doped with phosphorus tailing slag-steel slag and preparation method thereof
一种掺入磷尾矿渣-钢渣的再生混凝土及其制备方法
CHEN XUYONG (author) / LIU CHENG (author) / BAI XIXUAN (author) / CHENG SHUKAI (author)
2024-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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