The one-pass technique simply means that all of the steps in finishing are
completed in sequence without any waiting for the concrete to reach enough
strength to support the weight of finishers. This means that the
traditional waiting period of several hours between initial screeding and
bull floating and applying the final surface texture is eliminated. As soon
as the concrete is placed, it is screeded, bull floated, textured, and then
protected until curing begins (curing is discussed later in detail.) When
done properly, this process saves time and cost because the finishing crew
does not have to wait on the concrete to set to apply the final finish.
Protect refers to the continuing requirement during placing and finishing to
protect the silica-fume concrete from drying and plastic shrinkage cracking
(also discussed later in detail.)
The Silica Fume Association
38860 Sierra Lane, Lovettsville, VA 20180
Tel: 540.257.4224 Fax: 540.822.9456
