My project includes adding a narrow strip of concrete (1.5' in width) to an existing drive fabricated of 12' x 12' panels, 4" thick, rebar on 12" centers. In order to minimize potential cracking, what sort of enhancements (high strength concrete, 5" or 6" thickness, extra reinforcement, etc.) might be considered? This drive is for auto traffic of typical (say 4000 lbs) size at low speeds.
Thanks to all for their helpful advice.
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