Pouring an ICF Project Lessons Aggregate

Aggregate

The aggregate in your concrete mix should be 3/8″ (10mm) rock chip or river rock. A 1/2″ (12mm) aggregate can be used but will require additional vibration to ensure proper consolidation.

Step 11: The aggregate should be 3/8" (10mm) rock chip or river rock. A 1/2" (12mm) aggregate can be used, but will require more vibration to ensure proper consolidation.