Silicate clinker and cement prepared with same

Abstract

The invention belongs to the technical field of building materials, and provides silicate clinker and cement prepared with the same to overcome the defects of high raw material cost, poor burnability of raw batch, low long-term strength of clinker, difficulty in improving the long-term strength of the clinker, limitation of adulteration quantity of the raw batch and the clinker in cement and composite material preparation. The silicate clinker provided by the invention comprises steel slag, magnesium slag, coal ash, sandstone and limestone according to a certain proportion; the cement provided by the invention comprises the silicate clinker, coal ash, mineral waste residue and gypsum according to the certain proportion. As steel slag and magnesium slag are adopted as raw materials, the clinker of relatively high saturation ratio and silica ratio can be prepared easily, the strength of the clinker can be improved effectively, the adulteration proportion of cement admixture is improved, the burnability of the clinker is improved, and heat consumption is reduced; as industrial residues (steel slag and magnesium slag) are utilized effectively, the problems of environmental pollution and resource shortage are solved, and an effective way is provided for industrial residue treatment. Therefore, the social benefit, economic benefit and environmental benefit are very high.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a silicate clinker and cement prepared therefrom. Background technique [0002] At present, the iron correction raw materials used in the raw materials of silicate clinker in the domestic building materials market are iron powder or sulfuric acid slag. The raw materials prepared with these two correction raw materials have poor burnability and high raw material costs. And the late strength of clinker is generally 53-56Mpa, which is difficult to be greatly improved, so the amount of admixture (especially industrial waste residue) in the prepared general-purpose Portland cement is restricted. The cement produced with this kind of clinker has poor adaptability to lignin and naphthalene-based water reducing agents, and its resistance to sulfate attack, drying shrinkage and alkali aggregate expansion inhibition are poor. Limestone, another raw material, is also...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the high cost of raw materials for the traditional batching of Portland clinker, the poor burnability of the prepared raw meal, and the low strength of the clinker in the later stage and it is difficult to improve, the present invention uses it to prepare general-purpose Portland cement. The admixture amount, especially the admixture amount of industrial waste slag is restricted and other shortcomings, and a kind of silicate clinker and the cement prepared by it are provided

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