Applying a power trowel finish to silica fume concrete can certainly be
done, if the requirements of the project dictate. This step should not be
required for most applications. It may be necessary for heavy-duty floors
or floors in food processing areas.
To apply this type of finish, the contractor must wait until the concrete
has gained enough strength to support the weight of the finisher and the
trowel. The silica- fume concrete must be protected from drying during this
waiting period. Usually, such placements are done by specialty contractors
who are familiar with the requirements for more complex floor finishing.
The Silica Fume Association
38860 Sierra Lane, Lovettsville, VA 20180
Tel: 540.257.4224 Fax: 540.822.9456
