1. Cement bricks and permeable bricks, Jianling bricks are actually a type of bricks, but everybody's name is different, Chaoyu building materials is a relatively well-known manufacturer, but nowadays it is easy to build such a factory, product quality is difficult for ordinary people who do not know how to see that they say that bricks are Jianling bricks. (hereinafter referred to as cement bricks)
2. In terms of production technology, both cement bricks and sintered bricks have mould pressing type, and sintered bricks are separated into vacuum extruded sintered bricks. Coloring, cement brick is divided into surface coloring and general coloring. Sintered brick is unified into general coloring. Cement bricks are colored with pigments, and sintered bricks are fired at high temperatures up to about 1200 degrees. The coloring of cement bricks is very simple, but the coloring of sintered bricks is more difficult, because the different raw materials used will produce different colors, which can be roughly divided into yellow, coffee and red. Relatively speaking, red is the simplest. The raw materials used are yellow, coffee and red. Local raw materials (shale), burned out is red. Coffee brick is based on the local raw materials added a certain proportion of manganese ore powder, and then fired. Yellow fired bricks belong to the highest cost class in our factory. The raw materials are completely transported from other provinces, but the local raw materials can not be fired.
3. Cement brick 6 cm thick strength below 30 MPa. The strength of extruded fired brick is about 65 MPa in 5 cm thickness and that of pressed fired brick is about 40 MPa. Permeable cement brick is stronger than sintered brick, but the gap is not too big. The freeze-thaw resistance of compacted sintered brick is inferior to cement brick and inferior to extruded sintered brick. It can be said that extruded sintered brick is the best.