When should grout be placed under the panel?

• A. Not required
• B. Before erection
• C. After the panel has cured 7 days
• D. As soon as the panel is erected

Answer: (D)

Grouting under a tilt-up panel establishes a solid bearing surface and a clean load path from the wall to the foundation. Placing the grout as soon as the panel is erected seats the panel fully in its correct position, filling any gaps and creating a level, stable base before other work proceeds. This immediate grout-up helps prevent rocking or uneven settlement and ensures the panel locks into place while access is still available for proper placement and tapping. Waiting until after curing or later stages risks misalignment, cracking, and more difficult grout placement, while grouting before erection isn’t possible because there’s nothing to seat yet.