Portland-, Iron Portland-, blast furnace- and trass cement; determination of granulated blast furnace slag content of iron Portland cement and blast furnace cement and trass content of trass cement— 4 стр.
Building material and building elements for three-layered chimneys; elements of light-weight concrete for the outer layer; requirements and tests— 5 стр.
Building material and building elements for three-layered chimneys; elements of light-weight concrete for the inner layer; requirements and tests— 5 стр.