Environment-friendly cement and preparation method thereof

Abstract

The invention discloses environment-friendly cement and a preparation method thereof. The environment-friendly cement is prepared from limestone, coal ash, fluorgypsum, kaolin, industrial waste residues, modified natural rubber, coal gangue, vanadium slag, a reinforcing agent, an anti-permeability agent and water, and the modified natural rubber, the limestone and the coal ash are added into the prepared cement for effective filling; the strength and durability of cement are improved, in addition, the kaolin can change the grain composition of the cement, improve the coarse grain content of the cement, enhance the skeleton effect and further improve the strength and durability of the cement, so that the cement has a wide application prospect, and meanwhile, the reinforcing agent is added in the cement preparation process; the reinforcing agent reduces the viscosity of the cement material and promotes the dispersion of the particles by adjusting the fluidity of the cement material and the surface electrical properties of the particles, so that the flowability of the cement material is improved, the initial setting time in the cement preparation process is remarkably prolonged, and the later compressive/flexural strength is also remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to an environmentally friendly cement and a preparation method thereof. Background technique [0002] Cement is one of the inseparable building materials for human production and life. It has the advantages of abundant raw materials, low cost, convenient construction, good durability, and easy maintenance. It is widely used in civil engineering, water conservancy, national defense and other projects. It has become the most widely used and used building material by human beings. The quality of its performance directly determines the quality of the project. There are many types of cement, which can be divided into three categories: general cement, special cement and special cement according to their use and performance. [0003] For example, Patent Application No. 201310621914.5 discloses a preparation method of a novel composite cement. The natural mineral raw materials ...

AI Technical Summary

Problems solved by technology

[0005] 1. In the production process of cement currently on the market, the problem of coal consumption and material consumption is very serious, and the strength and durability of cement are poor;

[0006] 2. At present, the cement preparation cost on the market is relatively high, and it is not energy-saving and environmentally friendly;

[0007] 3. The cement currently on the market is not equipped with pre-crushing and impurity removal for slag, fly ash, furnace slag, steel slag or ferro-titanium alloy slag during the preparation process, which reduces the quality of cement preparation

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