Thanks Ron for the info. It's interesting that the guys in the office at the Quarry are saying the dust is a better choice. Maybe they are wanting to get rid of dust instead of sand.
I am building a 60 x 100 structural steel building. The building will have a 2' x 2' reinforced concrete foundation. Concrete blocks will will bring the building up to grade. The height of the blocks will be about 2' in the back and 4' in the front. My question is what would be the best...