Widen Concrete Driveway

Old 02-22-09, 04:35 AM
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Join Date: Feb 2009
Location: West Palm Beach, FL
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Widen Concrete Driveway

I want to widen my existing 10ft concrete driveway another 6ft. The current driveway was poured approx 6 months ago. I plan on doing this myself however need to know if I can simply butt the expansion up against the existing driveway or do I need to install some type of expansion material? I'm also want to add a walkway in the rear and was wondering would the existing 4in thick driveway bear the weight of the cement truck or should I go with my better judgement and have it pumped or haul it back there? I afraid that much wieght could crack the concrete. The current drievway was done with fiber reinforced concrete. No metal fabric. I'm in South Florida and the soil is all sand. Thanks.
Old 02-22-09, 06:15 PM
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Expansion joint material should be used wherever fresh concrete is placed against a rigid structure, like a wall or another concrete slab. It acts as a "shock absorber' to eliminate chipping when the two seperate slabs move against one another.
Your driveway may possibly hold the weight of a mixer, but I wouldn't risk it. A few guys with wheelbarrows can easily move a few yards of concrete without need of a pump. Good luck.

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