What is the difference between red brick and clay firebrick?
Clay bricks, also known as clay firebricks, are a kind of stereotyped refractories. The temperature of the kiln in the sintering process is about 1350℃. It is mainly made of clay as a binder and clay clinker as aggregate. His refractoriness is above 1560 ° C, clay brick is the cheapest of refractory bricks, aluminum content of less than 45%, belongs to low-grade refractory materials, generally used in high temperature kiln inside the less important position. Can only be used at temperatures below 1200 degrees.
Red brick is a building material, with clay, shale, coal gangue and other raw materials, after grinding, mixing and kneading to manual or mechanical pressing molding, after drying at about 900 degrees Celsius fired. After burning, the iron element in the brick is oxidized to iron sesquioxide. Since iron sesquioxide is red, it is also red. It is mainly used for masonry walls.
