78402407
Apr 15, 2004
Oct 30, 2007
Aggregate composed of fly ash, bottom ash, and/or flu gas desulphurization materials for use in masonry, structural and architectural concrete, precast floor and wall slabs, terrazzo flooring surfaces, manufactured stone veneer, geotechnical fill and grouting; loose aggregate composed of fly ash, bottom ash, and/or flu gas desulphurization materials for ground cover
Nonmetallic Building Materials