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VanRIch
LSU Fan
Abita Springs, La
Member since Sep 2007
6654 posts

Need to repair driveway? Advice needed
So we built our house about 4 years ago, and when they poured the driveway, where it meets with the blacktop street, they just poured about and inch of concrete over the asphalt about 4-5 inches out. Now that section is almost completely broken up in chunks.

My thought to repair this is:
1) rent a concrete saw from home depot
2) cut my driveway about 12" back from the road
3) cut out the asphalt where it meets the driveway, probably about 4-5"
4) dig out 10" deep
5) pour new concrete into the 10" X 20" X width of driveway section

So now there would be no overlay of any materials, just a 10" deep concrete wall that meets up with the street.

Does this seem like it would be sufficient?

Pic for visualization.
Image: https://i.imgur.com/t425xi4.png
This post was edited on 11/4 at 11:43 am


Sheepdog1833
LSU Fan
Member since Feb 2019
286 posts

re: Need to repair driveway? Advice needed
10” is unnecessary. 5-6” is sufficient residential at the street.
Think about renting a hammer drill as well to dowel in 1/2” rebar. (Use a 5/8” bit) no less than 24” on center.
Use epoxy in holes.
Add mesh
None of this is necessary but if you are taking the time to fix it, push a bit more into it and it’ll have a better chance to last.


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Boudreaux35
BR
Member since Sep 2007
17197 posts
 Online 

re: Need to repair driveway? Advice needed
I agree with the above except that depending on the existing driveway thickness, it may be difficult to drill holes without cracking the concrete. If you're going to use #5 bars, the hole will need to be 3/4" or larger. If your current drive is 4" thick, that doesn't leave much room above and below the hole. Hopefully you have wire mesh in the concrete now. If you can break out a small section to determine the depth, then set your saw to cut to just above that level. Break out the rest of the concrete and then overlap new mesh onto the existing and pour your new section.

Hopefully that made some kind of sense.


VanRIch
LSU Fan
Abita Springs, La
Member since Sep 2007
6654 posts

re: Need to repair driveway? Advice needed
Thanks guys.
Sounds to me like you’re saying don’t cut all the way down the existing slab. Just enough to expose the mesh, then break up the concrete still attached to the mesh and then I’ll have mesh from the drive way to tie the new pour into?


Boudreaux35
BR
Member since Sep 2007
17197 posts
 Online 

re: Need to repair driveway? Advice needed
quote:

Sounds to me like you’re saying don’t cut all the way down the existing slab. Just enough to expose the mesh, then break up the concrete still attached to the mesh and then I’ll have mesh from the drive way to tie the new pour into?



That's what I would do


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fishfighter
LSU Fan
Baton Rouge
Member since Apr 2008
34725 posts

re: Need to repair driveway? Advice needed
Yes, try to leave the old wire in place. They is about a 100% chance the old wire will not be level across. Get some wire ties and some concrete wire, tie it to the old, then pour.


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Sheepdog1833
LSU Fan
Member since Feb 2019
286 posts

re: Need to repair driveway? Advice needed
quote:

Sounds to me like you’re saying don’t cut all the way down the existing slab. Just enough to expose the mesh, then break up the concrete still attached to the mesh and then I’ll have mesh from the drive way to tie the new pour into?


This is a lot harder than you think. And if you don’t cut all the way through the concrete, you run the risk of transferring a crack to the concrete that you plan to keep. How wide is the apron?


CheEngineer
LSU Fan
Louisiana
Member since Aug 2019
249 posts

re: Need to repair driveway? Advice needed
Yeah I agree trying to bust the concrete off the wire will be dang near impossible.

If it were me I would cut out the section like you discussed but try to dig out under the road and under the existing slab some to make an irregular shape to help it lock together also rough up the mating pieces as much as possible the drilling and rebar is a good idea but again as pointed out probably difficult.


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Sheepdog1833
LSU Fan
Member since Feb 2019
286 posts

re: Need to repair driveway? Advice needed
Whenever I have a spot in a concrete repair where I have two parallel cuts like you’re talking about here, I try to get make them at least 18” apart so that I can get a hammer drill in there. That’s why I asked how wide your driveway was. For a twenty foot wide apron, you’re only looking at an additional 5 bags of quikrete to mix. Again if you’re going through the trouble, a little bit of extra work will stand up much longer.
This post was edited on 11/4 at 9:01 pm


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