Nickel slag sand/nickel slag powder blended cement-based grouting material for construction, and preparation method of same

Abstract

The invention relates to nickel slag sand / nickel slag powder blended cement-based grouting material for fabricated construction, and a preparation method of same, wherein the nickel slag cement-basedgrouting material used for fabricated construction includes, by weight, nickel slag sand 52-61%, nickel slag powder 6-14%, cement 23-35%, composite ultrafine powder 10-17%, an expansion regulator 1.5-2.5%, a polycarboxylate water reducer 1.3-1.7%, an enhancer 0.5-1.2%, a defoamer 0.4-0.9%, a retarder 0.6-1.2%, and mixing water 11-18%. The invention provides the nickel slag sand / nickel slag powderblended cement-based grouting material for construction and the preparation method of same; on the basis of micro-expansion of the nickel slag, the nickel slag sand and nickel slag powder, which are obtained by crushing and ball-milling nickel slag, can be applied at large doping quantity and respectively serve as a fine aggregate and a part of cementing material in the system. The technology achieves recycling utilization of solid waste and achieves the object of energy saving and emission reduction.

Description

technical field [0001] The invention relates to the field of industrial solid waste and assembled buildings, in particular to a cement-based grouting material mixed with nickel slag sand and nickel slag powder for construction and a preparation method thereof. Background technique [0002] Since the end of the 1970s, although my country's productivity has developed rapidly and the degree of urbanization has gradually deepened, with the reduction of the demographic dividend, labor costs have become higher and higher, and my country's construction field has encountered many difficulties. Therefore, prefabricated buildings have become an inevitable trend of future construction development in my country and the world due to their advantages such as fast construction speed, short construction period, low production cost, green energy saving and environmental protection. [0003] Cement-based grouting material is a special form of concrete. It is made of cement as the main cementi...

AI Technical Summary

Problems solved by technology

At present, the resource utilization of nickel slag in my country mainly includes cement admixtures, concrete admixtures, building blocks and autoclaved products, extraction of valuable metals, glass ceramics, etc., and has achieved relatively good development. At present, The application of nickel slag in cement-based grouting material is less research and production practice. Nickel slag powder can be obtained after putting nickel slag sand into a ball mill for ball milling. Nickel slag powder can be used as a substitute for cementitious materials after a certain fineness is ensured. At present, even if nickel slag is used in cement-based grouting materials, nickel slag sand is mainly used. No one uses nickel slag powder as a cementitious material, let alone mixing the two. Therefore, it is necessary to develop a nickel slag cement-based grout material, which plays a non-negligible role in the development of industrial society

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