Garden buildings, ground laying, garden paths are mainly paved with landscape bricks , and ceramic tiles are fired from clay. Clay contains a lot of minerals. Which minerals are made of ceramic tiles?
The clay deposits in the raw materials of landscape tiles have also become fundamental deposits. Especially for the production of high porosity hollow bricks, the clay mineral content should be above 35%. Clay deposits are a mixture of multiple fine deposits, and their particles are generally smaller than 0.02 mm. The clay material of the brick and tile material is mainly composed of illite and the like. In view of the functional requirements of landscape tiles, it is desirable to contain more refractory soil and illite.
Although the plasticity of montmorillonite is very good, because its particles are very fine and the specific surface area is large, if there are many other clay minerals at the same time, the drying sensitivity coefficient of the material will be greatly improved, so its content is generally controlled below 3% . Clay consisting mainly of montmorillonite is called bentonite.
Landscape bricks are composed of silicates and other minerals. They have high silicon content, so their properties are very stable. After firing, they are made into ceramic tiles with high hardness and good water permeability. The internal molecules are dense and the fire resistance is good.