Replace concrete gravel and pebbles ceramic sand

To replace the concrete rubble and gravel, is the use of a variety of materials of various types of clay, slate, shale, coal gangue, and industrial solid waste, through ceramics sintered ceramic sand.
Ceramic sand has a low density, excellent thermal insulation, impermeability, excellent alkali aggregate reactivity, low water absorption, frost resistance and good durability, and many other advantages.  maide ceramic proppant , by definition, ceramic particles , fine sand called, also known as oil fracturing proppant.
Ceramic sand Exterior features: Most were round or oval ball, but there are not some imitation gravel round or oval maide resin coated silica sand spheres, and irregular-shaped ceramic gravel color due to the appearance of the raw materials used. and different processes and different. firing ceramic colors are mostly dark red, red ocher, there are some special varieties of pale yellow, gray ceramic sand proppant black, white, gray and so on. ceramic proppant sand oil finished .