Lightweight Aggregates for Concrete

30 pounds aggre aggregate sizes aggregate weighs aggregates are available air-cooled slag all-Haydite concrete Anthracite average weight bituminous coal blast-furnace slag breccia Brick burning Calif carbon Cel-Seal cement cinder aggregate clay or shale coarse aggregate Coke breeze commercial concrete aggregate construction crete cubic foot desirable properties diameter diatomaceous shales diatomite discharge dust evolved gases expanded shales expanded slags expanded vermiculite expanded-shale aggregates furnace graded Haydite aggregate heat inch lightweight aggregates lightweight concretes lightweight materials manufacture of precast markets masonry units mixed molten slag obtained operations particles patented process U. S. pellets percent Pottsco pounds per cubic precast building units precast units process U. S. Patent PROCESSED AGGREGATES pugged pumice aggregate raw material rotary kiln sand sawdust scoria shale or clay Short tons silicate sintering sintering machine sound-insulating structural concrete suitable sulfur Superock temperature thermal insulation trade names tuff Tuff-Lite types vitrification volcanic volcanic cinder Waylite weight aggregates