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A platform for research: civil engineering, architecture and urbanism
Low-carbon quick-hardening early-strength concrete and preparation method thereof
The invention discloses low-carbon quick-hardening early-strength concrete which is prepared from the following raw materials: a cementing material, coarse aggregate, fine aggregate, a water reducing agent, an early-strength agent, a retarder and water, and the cementing material at least comprises sulphoaluminate cement and waste concrete ultrafine powder; the sulphoaluminate cement and the waste concrete ground powder are matched for use, and the advantages that the early strength of the sulphoaluminate cement develops quickly, the later strength of the Portland cement is continuously increased and the like are combined, so that excellent working performance of the quick-hardening early-strength concrete is guaranteed, construction is facilitated, the early strength develops quickly, and the later strength is stably increased. Compared with ordinary Portland cement, the adopted sulphoaluminate cement has the advantages that the calcination temperature is reduced, the carbonate content is reduced, and the carbon emission capacity of cement raw materials can be effectively reduced; and the reuse of the waste concrete ground powder reduces the cement consumption in the concrete, facilitates the reduction of the overall carbon emission of the concrete, and promotes the transformation and upgrading of concrete production to low-carbon production.
本发明公开了一种低碳型快硬早强混凝土，所述混凝土原料包括胶凝材料、粗骨料、细骨料、减水剂、早强剂、缓凝剂、水，所述胶凝材料至少包括硫铝酸盐水泥和废弃混凝土超细粉；采用的硫铝酸盐水泥与废弃混凝土磨细粉搭配使用，通过结合硫铝酸盐水泥早期强度发展快，硅酸盐水泥后期强度持续增加等优势，保证快硬早强混凝土工作性能优异，方便施工的同时早期强度发展较快，后期强度稳步增长。所采用的硫铝酸盐水泥较于普通硅酸盐水泥的煅烧温度降低、碳酸盐含量降低，可有效降低水泥原材料的碳排放能力；且废弃混凝土磨细粉的再利用使得混凝土中水泥用量减少，利于减少混凝土整体的碳排放，促进混凝土生产向低碳生产转型升级。
Low-carbon quick-hardening early-strength concrete and preparation method thereof
The invention discloses low-carbon quick-hardening early-strength concrete which is prepared from the following raw materials: a cementing material, coarse aggregate, fine aggregate, a water reducing agent, an early-strength agent, a retarder and water, and the cementing material at least comprises sulphoaluminate cement and waste concrete ultrafine powder; the sulphoaluminate cement and the waste concrete ground powder are matched for use, and the advantages that the early strength of the sulphoaluminate cement develops quickly, the later strength of the Portland cement is continuously increased and the like are combined, so that excellent working performance of the quick-hardening early-strength concrete is guaranteed, construction is facilitated, the early strength develops quickly, and the later strength is stably increased. Compared with ordinary Portland cement, the adopted sulphoaluminate cement has the advantages that the calcination temperature is reduced, the carbonate content is reduced, and the carbon emission capacity of cement raw materials can be effectively reduced; and the reuse of the waste concrete ground powder reduces the cement consumption in the concrete, facilitates the reduction of the overall carbon emission of the concrete, and promotes the transformation and upgrading of concrete production to low-carbon production.
本发明公开了一种低碳型快硬早强混凝土，所述混凝土原料包括胶凝材料、粗骨料、细骨料、减水剂、早强剂、缓凝剂、水，所述胶凝材料至少包括硫铝酸盐水泥和废弃混凝土超细粉；采用的硫铝酸盐水泥与废弃混凝土磨细粉搭配使用，通过结合硫铝酸盐水泥早期强度发展快，硅酸盐水泥后期强度持续增加等优势，保证快硬早强混凝土工作性能优异，方便施工的同时早期强度发展较快，后期强度稳步增长。所采用的硫铝酸盐水泥较于普通硅酸盐水泥的煅烧温度降低、碳酸盐含量降低，可有效降低水泥原材料的碳排放能力；且废弃混凝土磨细粉的再利用使得混凝土中水泥用量减少，利于减少混凝土整体的碳排放，促进混凝土生产向低碳生产转型升级。
Low-carbon quick-hardening early-strength concrete and preparation method thereof
一种低碳型快硬早强混凝土及其制备方法
HE MOU (author) / BAN KECHENG (author) / DUAN HOUHONG (author) / CHANG SHIWEN (author) / WEI XIAOFAN (author) / LIANG MEIKUN (author) / BAI TING (author)
2022-12-20
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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