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-   -   Expanding a concrete driveway (http://www.diychatroom.com/f105/expanding-concrete-driveway-156679/)

jamiegirl 09-13-2012 08:16 AM

Expanding a concrete driveway
 
I need to widen my concrete driveway approx. 3' more at the entrance on both sides. I have dug out the sod and topsoil and now I'm down to chunks of rocks and can't dig any deeper by hand. I only have a total of 6" in depth and I keep reading that the concrete needs to be 6" deep. I already brought in crusher stone and put it in about 2". I'm concerned that if I pour the slabs 4" thick that they will crack when we drive on it. Any suggestions??

Canarywood1 09-13-2012 11:19 AM

Quote:

Originally Posted by jamiegirl (Post 1008956)
I need to widen my concrete driveway approx. 3' more at the entrance on both sides. I have dug out the sod and topsoil and now I'm down to chunks of rocks and can't dig any deeper by hand. I only have a total of 6" in depth and I keep reading that the concrete needs to be 6" deep. I already brought in crusher stone and put it in about 2". I'm concerned that if I pour the slabs 4" thick that they will crack when we drive on it. Any suggestions??


Compact the stone you added and pour your drive at 4 inches,and it will be fine.

jamiegirl 09-13-2012 11:51 AM

Thank you for the quick reply
 
Thank You! I thought we would be ok but didn't want to take the chance.
I appreciate your response on the subject. :thumbup:

oodssoo 09-13-2012 11:57 AM

Post some pictures when you are done!

Mort 09-15-2012 12:17 AM

... And make sure to wait at least a week (preferably two weeks) before you drive on it. Concrete will achieve about 80-90% of its strength in 7 days, but takes 28 to be fully cured.

weekendwarrior9 09-15-2012 12:22 AM

remember to use mesh or rebar, and to support them with those little concrete blocks so the mesh/rebar sits in the middle of the concrete.

Also, dunno how long your driveway is, but you may need to add stress cuts

Rocket98 09-15-2012 01:38 AM

Just pour it like it is

jamiegirl 09-15-2012 07:53 AM

today
 
I'll be pouring the concrete today....thanks for all the advice. I do plan on using rebar with mesh. 2x4's on the side with dirt to hold the form and 1/4 luan for an expansion joint. I'll let you know how it goes...:)

jamiegirl 09-17-2012 09:34 AM

Project Finished
 
The driveway expansion turned out super! We used 30 bags of concrete, mixed two at a time. I used a broom to put the texture in it. The kids got to put in their handprints and initials. Yesterday I filled in a little sod on the edges, all the neighbors think we did a great job.
Thanks again for all the advice....Yeah DIY!!:yes:


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