... brick,the porous rate is 70-80%.3.Advantages light weight Areated concrete density is usually 400-700kg/m3,(according the ... concrete.So use the Light brick can reduce the weight of the build more,and also reduce the beam of roof and pillar ... , cutting, evaporating and curing, crane cramp, transporting etc.,1 Product weight is according to 600kg/m3 to control.2 annual capacity ...