Fly-ash-ceramic-tile raw material, fly-ash ceramic tile and preparing method of fly-ash ceramic tile

Abstract

The invention provides a fly-ash-ceramic-tile raw material, a fly-ash ceramic tile and a preparing method of the fly-ash ceramic tile. The fly-ash-ceramic-tile raw material is prepared from 70-92 parts by weight of fly ash and 8-30 parts by weight of an additive; the additive comprises a plasticizer, a reinforcing agent and a fluxing agent; the plasticizer is selected from one or more of water glass, bentonite and lignosulfonate; the reinforcing agent is selected from one or more of mineral powder, quartz powder, silica fume and perlite; the fluxing agent is albite and / or potassium feldspar. The added amount of the fly ash in the ceramic-tile raw material is greatly increased, a blank prepared from the raw material is high in strength, not prone to fragmentation and capable of conducting actual large-scale production and breaking a limitation of the using amount of past fly ash. By means of the preparing method, a ceramic tile product with the fly ash as the body material can be prepared, the preparing process is simple, actual production is easy to conduct, and actual large-scale production can be achieved.

Description

technical field [0001] The invention relates to the technical field of inorganic non-metallic materials, in particular to a fly ash ceramic brick raw material, a fly ash ceramic brick and a preparation method thereof. Background technique [0002] Ceramic bricks are plate-shaped or block-shaped ceramic products made by molding raw materials formed of clay and other inorganic non-metallic materials to obtain green bodies, and then sintering the green bodies. They are mainly used as walls of buildings and other buildings. Surface and ground decoration materials are used to decorate and protect buildings. The production of traditional ceramic bricks uses clay as the main raw material. The mining of clay has caused a large loss of land resources, and the state's control over clay mining is becoming more and more strict; There are also great safety hazards in the construction process. [0003] Based on this, technicians gradually develop other materials to replace clay. For exa...

AI Technical Summary

Problems solved by technology

It can be seen that in the above schemes, the amount of fly ash added is very low, and it cannot be used as the main raw material to prepare ceramic tiles like clay, and it cannot replace clay well and maximize the utilization of fly ash resources.

[0006] In order to increase the amount of fly ash added, individual solutions have been proposed in the prior art, some of which have been improved in terms of production technology, and the method of slurry casting instead of extrusion, dry pressing and other molding methods is used to increase the yield of finished products. However, this method has a long cycle and cumbersome process, and is not suitable for the actual large-scale production of ceramic tiles.

It was also proposed to modify the fly ash, instead of directly using fly ash, but to modify the fly ash with alkali to obtain modified fly ash, and use the modified fly ash to prepare ceramic bricks, so as to Improve the production status of ceramic tiles; however, alkali is highly corrosive, difficult and dangerous to operate, and will also produce alkaline sewage, requiring additional treatment facilities for alkaline sewage, which is also difficult to promote and use on a large scale

[0007] Therefore, for fly ash ceramic bricks, fly ash cannot be used in large quantities, otherwise the problems of low strength, fragility and difficulty in actual large-scale production of the molded body have not been better improved.