... and other advantages.it can be made into many kinds of bricks(forexample:600×200×100,80×80×180,240× ... example sand,they can be used directly if hasenough degree of small (for example coal ash.Mixing calcium material lime cement ... /m3,(according the market in produce ),same as1/3 of clay brick and 1/5 common concrete.So use the ... 0.22W/(mk),the same as 1/4 or1/5 of clay brick,so it is best materials now in ...