Thursday, January 27, 2011
The way I'd always seen foundations done before is to dig trenches, build the edges up with wood, add rebar and pour the trenches full of concrete. Not so, here - there were no trenches. Instead, large areas were scraped flat, then topped with a foot of compacted gravel. The forms for the footings were then built on top of this pad and rebar was added.
After the foundations were poured, the forms were removed and the areas in between the footings were filled with gravel, which was compacted before pouring concrete floors on top of it.