... material. It is based on cement, lime, slag, fly ash, and sand and made of materials such as gas as raw material.It ... clay 1 / 3 of ordinary concrete, 1 / 5, and the lightweight aggregate concrete and hollow block, hollow clay brick, compared to products such ... main reasons. (3) Good process ability Aerated concrete without coarse aggregate, has a good process ability can be sawing, planning, drilling ...