NCMA Solutions Center: When is mechanical consolidation of grouting required during a grout pour?

NCMA eNews
November 8, 2018

Per code, mechanical consolidation shall be used for grout pour heights greater than 12 inches. For grout pour height less than 12 inches, puddling (typically done with a wooden rod) or mechanical consolidation can be used. To ensure complete grout fill and good bond in the masonry system, conventional grout always needs to be consolidated and reconsolidated to remove voids that are created from water absorbing into the units. Reconsolidation is generally done 3-10 minutes after initial consolidation. For more information on grouting concrete masonry assemblies, see TEK 3-2A Grouting Concrete Masonry Walls.