Within the general area of improving durability, by far the greatest use of
silica fume has been in concrete susceptible to corrosion caused by chloride
ion attack of the reinforcing steel. This category includes concrete
exposed to either deicing salt or to marine salts. The protection mechanism
in this case is primarily the reduction of the permeability of the concrete,
which significantly increases the time that it takes for the chlorides to
reach the level of the reinforcing steel.
The Silica Fume Association
38860 Sierra Lane, Lovettsville, VA 20180
Tel: 540.257.4224 Fax: 540.822.9456
