High-performance cement with large mixed material mixing amount and preparation method therefor

Abstract

The invention discloses high-performance cement with a large mixed material mixing amount and a preparation method therefor. The cement contains mineral powder and pulverized coal ash, wherein the total amount of the mineral powder and the pulverized coal ash used accounts for 15-50% of the mass of the cement, and the use amount ratio of the mineral powder to the pulverized coal ash is (3.5-5.0): 1. According to the invention, being different from the existing research on the influence on the performance of the cement caused by mixed materials from the aspect of mixed material mixing amount, the influence on the performance of the cement caused by the mixed materials is researched from the aspect of mixed material mixing amount ratio; and after the mixed material mixing amount ratio is determined, the consumption of the mixed materials can be increased as high as possible in a certain mixing amount range, the utilization ratio of solid wastes is increased, and the consumption of clinker is lowered, so that the production cost is reduced on one hand, and good social and environment-friendly benefits are brought on the other hand.

Description

technical field [0001] The invention belongs to the field of cement manufacture, and in particular relates to a high-performance cement with optimized mixing materials (referring to mineral powder and fly ash) and a preparation method thereof. Background technique [0002] In the prior art, there are many studies on the compounding of mineral powder and fly ash mixed into the Portland clinker to prepare cement, but the existing research methods are limited to the amount of mineral powder and fly ash and ( total content) on the performance of cement. The result of this research method is that when mineral powder and fly ash are mixed to prepare high-performance cement products, the total amount of the two mixed materials cannot exceed a certain critical value. When this critical value is exceeded, the cement performance will be reduced. Affected, so the amount of the mixture in the clinker is limited. In this way, on the one hand, the amount of mixed materials is limited, a...

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Problems solved by technology

[0002] In the prior art, there are many studies on the compounding of mineral powder and fly ash mixed into the Portland clinker to prepare cement, but the existing research methods are limited to the amount of mineral powder and fly ash and ( total content) on the performance of cement

The result of this research method is that when mineral powder and fly ash are mixed to prepare high-performance cement products, the total amount of the two mixed mate

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