+1 vote

Grouting application

asked Jun 5, 2016 in Structural-Civil by Tank Guerro (390 points)
How long should I wait to apply grouting after pouring concrete foundation?

1 Answer

+1 vote
answered Jun 5, 2016 by GerritMcLane (870 points) | selected Jun 7, 2016 by odadmin
Best answer
Foundations should have cured 28 days minimum before grouting.  Check with the Operations people to see if the duration can be reduced. They should ensure that the concrete on which the grout will bear should have attained its design strength and shrinkage before grouting, and that distortion due to drying shrinkage is determined to be less than alignment integrity requirements.  However, this interval should not be reduced to less than seven days.