Glazed tile produced by waste materials of red bricks, and producing method thereof

Abstract

The invention provides a glazed tile produced by waste materials of red bricks, and a producing method thereof. The glazed tile comprises a blank body layer, a ground coat layer and a stenciled decoration layer from bottom up, wherein the blank body layer is prepared by the following steps: using the following components in percent by weight: 20-40 percent of the waste materials of the red bricks, 20-40 percent of plastic clay soil, 10-30 percent of potassium feldspar, 15-20 percent of kaolinite and 2-5 percent of soapstone as blank body raw materials, performing punch forming, and then performing baking at an oxidative atmosphere. Compared with the prior art, the method has the following advantages: firstly, in the technical scheme of the method, a recovery processing process of the waste materials of the red bricks is simple, and a great amount of waste materials of the building red bricks can be consumed; secondary, iron elements in the blank body layer can be completely converted into ferric oxide, so the performance is stable and unitive; thirdly, defects that the blank body layer is easy to deform and quantities of blank bubbles and pinholes are more in a high-temperature sintering process as the content of the iron elements is high are overcome.

Description

technical field [0001] The invention relates to a comprehensive utilization technology of construction waste materials, in particular to a production method of glazed bricks using red brick waste materials. Background technique [0002] Commonly known as clay bricks, red bricks refer to iron-rich yellow clay, shale, coal gangue, etc. Sintered building bricks fired with an oxidizing flame. Before the 1990s, it was widely used as a main building material. However, red bricks have a huge demand for clay and cause serious damage to the environment. In the mid-1990s, the country banned the production and sales of red bricks. Since the beginning of the 21st century, with the acceleration of the transformation of old cities and the construction of new urbanization, these red bricks have been widely used as wall materials in old Chinese buildings, masonry columns, arches, industrial chimneys, ground walls and other basic constructions. It has been replaced by new environmentally ...

AI Technical Summary

Problems solved by technology

If the sintering system of these iron oxides with unstable valence is not properly controlled, the color of the green body will change easily during the sintering process, and it will easily deform and cause defects such as green foam and pinholes, which will limit its application in the production of ceramic wall and floor tiles.

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