The ease of placing and finishing silica-fume concrete increases directly
with slump. Because the concrete is cohesive and resistant to segregation,
slump can be increased. Don't forget: slump increase must be achieved
through the use of chemical admixtures rather than through the addition of
water.
The increase in slump should be coordinated between the contractor and the
concrete supplier during initial discussions on concrete requirements.
The Silica Fume Association
38860 Sierra Lane, Lovettsville, VA 20180
Tel: 540.257.4224 Fax: 540.822.9456