A method of producing wear-resistant and anti-seepage cement with activated fly ash

Abstract

The invention discloses a method for producing wear-resisting impervious concrete with activated powdered coal. The method comprises the following steps: uniformly mixing 65-75% of powdered coal with 35-25% of alkali waste material by mass; adding a defined amount of water and fully stirring; preparing into an activated mixture or briquet; stacking, curing and naturally drying the activated mixture or briquet, thereby acquiring the product. The activated powdered coal product produced by utilizing the powdered coal and the alkali waste material according to the method can be used for directly replacing some clinker cement for producing various high grade cement with higher wear resistance, anti-permeability property and anticorrosion property, so that the problem of slag cement unable to resist wear, lower in permeation, corrosion and frost resistance and easy to cause lime sand that has not been solved at home and abroad at present can be solved; the surface foaming and layering phenomena in the concrete formula can be effectively avoided; the concrete can be used for replacing the road cement; the problems of easiness in causing secondary pollution and low use ratio of the alkali waste can be solved; the quality of various cement and concrete can be increased; the production cost is lowered.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a method for producing wear-resistant and anti-seepage cement by using activated fly ash. Background technique [0002] With the continuous improvement of human health care and environmental protection awareness, the requirements for the quality of the living environment are getting higher and higher, and the requirements for ecological buildings and decorative materials are becoming increasingly urgent. People expect more, better, more wear-resistant and impermeable materials. The advent of ecological building materials. [0003] At present, from the situation at home and abroad, there are many ways to use fly ash in the production of cement, but there are no more than the following: one is used for raw cement ingredients; the other is when the active mixture is mixed with clinker to grind Cement production; third, used for road subgrade; fourth, used as wall material...

AI Technical Summary

Problems solved by technology

However, the amount of fly ash used in these methods has a certain limit, which more or less has a certain impact on product quality. When the amount of fly ash in cement is large, the water consumption of cement will be too high, the strength will be reduced, and the application will be affected. certain restrictions

In addition, the quality of general-purpose cement generally has defects such as non-wear resistance and poor impermeability, especially the slag cement has poorer wear resistance and impermeability, and is prone to lime sand

In addition, many power plants have affected the quality of fly ash due to denitrification, resulting in surface foaming and delamination in concrete preparation.

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