... conceptionCommon concrete density is usually 1600-2400kg/m3,but Areated concrete are 500kg/m3,600kg/m3,700kg/m3.It has not the big grain ... . Advantages light weight Areated concrete density is usually 400-700kg/m3,(according the market ti produce ),same as 1/3 of ... dust and other silicon materials . Save more landwhen produce 10000 m3 light weight brick ,will use 4200 Ton coal ash ,and ...