Dense aggregate blocks for general use
The blocks are made of {Portland cement}, natural aggregate or blastfurnace slag. The usual mix is 1 part of cement […]
The blocks are made of {Portland cement}, natural aggregate or blastfurnace slag. The usual mix is 1 part of cement […]
Clay bricks are rarely exactly rectangular in shape and they vary in size. Some facing bricks are far from uniform
Cement is made by heating a finely ground mixture of clay and limestone, and water, to a temperature at which
A submicroscopic variety of fibrous quartz, generally translucent and containing variable amounts of opal; reacts with alkalies in portland cement.