Do I need a lot of gravel under concrete?
I just had a a question. Do I need a lot of gravel under concrete for my driveway. I live in California and get no extreme weather changes and I know this can matter in the long run. I have a guy putting concrete in our driveway, which is on a slope, used minimal gravel and rebar. Should this matter? Or should there be more gravel? Please help. Thank you
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