... Chemical reflect.then produce Hydrogen to make the concrete slop to expanding or swell,foam.Next,put ... -80%.3.AAC block Advantages light weight Areated concrete density is usually 400-700kg/m3,(according the ... /3 of clay brick and 1/5 common concrete.So use the Light brick can reduce the ... good after-sale service.Capacity: from 20000 cubic meter to 300,000 cubic meters per year. Equipments: stocking raw ...