||11-27-2007 02:56 PM
Pouring a concrete slab - Do I need a 4" gravel base?
I have a parking pad, built out of solid 4" X 8" X 16" concrete blocks that butts against my driveway. The size of the pad is about 9ft X 19ft. I'd like to just pull up the blocks, put some forms in, and pour some concrete, and so all that nice finishing stuff you are supposed to do to make the pad look presentable. Do I really need the 4" of gravel for a base? I live in GA, where Sonny Purdue has outlawed the rain, and it rarely gets really cold, so heaving would be a non-issue. The way I see it, if the ground is already compacted underneath, there shouldn't be much of an issue, right? The pad has been down for over 2 years, and erosion has not played a factor. Thanks for your input.