As-produced silica fume. This is silica fume as it comes from the bag
house. While it can be used in concrete, this form is more difficult to
handle and more expensive to transport because of its very low bulk density.
The Silica Fume Association
38860 Sierra Lane, Lovettsville, VA 20180
Tel: 540.257.4224 Fax: 540.822.9456