... and other advantages.it can be made into many kinds of bricks(for example:600×200×100,80×80×180,240 ... sand,they can be used directly if has enough degree of small (for example coal ash.Mixing calcium material lime cement water ... m3,(according the market in produce ),same as 1/3 of clay brick and 1/5 common concrete.So use the ... 22W/(mk),the same as 1/4 or 1/5 of clay brick,so it is best materials now in ...