What temperature should my foundation be to install grout?

A foundation should be between 65°F to 90°F to install grout.  Having the right temperature is important to ensure proper flow, adhesion and cure of the grout material.

What protection should be provided to a foundation during a cold weather grout pour?

The foundation should be completely enclosed and provided with a heat source to raise the entire foundation and equipment to a temperature above 65°F for 48 hours prior to and after a grout pour.