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Any concrete experts? singlewchildren 09-16-2006
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Posted by on September 16, 2006, 7:14 pm

If anyone knows there way around concrete, I sure have a question:

I want to to some patching and touchup on my concrete driveway to try
and postpone the inevitable replacement.

Does new concrete adhere to the older concrete? One pad at the
entrance to the garage has drooped, and so I have about a 1.5 inch bump
to drive over. I just want to smooth that with cement from the Home
Depot, knowing that it will continue to drop a bit further, eventually
crack off, and require full replacement of the pad one day. Just hoping
to postpone the inevitable due to finance issues.

If I smooth that bump, will the concrete "stick" to the driveway, or
will I just be creating a sort of angled piece of concrete that will
slide off the existing surface?

Hope I explained that okay, as I don't know anything about concrete,
other than I know that fixing my driveway will one day cost me a
fortune :-)

Thanks,

Mark


Posted by Richard J Kinch on September 16, 2006, 7:58 pm
> If I smooth that bump, will the concrete "stick" to the driveway, or
> will I just be creating a sort of angled piece of concrete that will
> slide off the existing surface?

The latter.

Polymer-modified stuff will stick better but still unlikely to hold up.

You might consider the bagged asphalt patch material, if you're trying to
transition a 1.5 inch high step with a wedge of material.

Posted by on September 16, 2006, 8:16 pm

Richard J Kinch wrote:
> > If I smooth that bump, will the concrete "stick" to the driveway, or
> > will I just be creating a sort of angled piece of concrete that will
> > slide off the existing surface?
>
> The latter.
>
> Polymer-modified stuff will stick better but still unlikely to hold up.
>
> You might consider the bagged asphalt patch material, if you're trying to
> transition a 1.5 inch high step with a wedge of material.

ask at your building center. There is a patching concrete or an
additive that will work fine.

If you take a masonary bit and drill a few holes to help it key
together. 1.5 inches is fine for a topping layer. The problem will
occur at the thin edge .


Posted by chuckster on September 16, 2006, 9:08 pm
ARDEX - google this for a dealer in your area. This stuff is the cats
ass for leveling and patching concrete.




marks542004@yahoo.com wrote:
> Richard J Kinch wrote:
> > > If I smooth that bump, will the concrete "stick" to the driveway, or
> > > will I just be creating a sort of angled piece of concrete that will
> > > slide off the existing surface?
> >
> > The latter.
> >
> > Polymer-modified stuff will stick better but still unlikely to hold up.
> >
> > You might consider the bagged asphalt patch material, if you're trying to
> > transition a 1.5 inch high step with a wedge of material.
>
> ask at your building center. There is a patching concrete or an
> additive that will work fine.
>
> If you take a masonary bit and drill a few holes to help it key
> together. 1.5 inches is fine for a topping layer. The problem will
> occur at the thin edge .


Posted by Greg on September 17, 2006, 1:08 am
Well, I can tell ya, when you are forced to get it done by a "professional,"
make sure you look around! We just paid a fortune to get our driveway
redone, yet have several spots that look wet, they feel hollow, and are
quite brittle. Called the fella, but did not receive a call back. So I
don't know what the problem is, but I can guarantee we won't be using him
again.

73
Greg
ki4bbl




>
> If anyone knows there way around concrete, I sure have a question:
>
> I want to to some patching and touchup on my concrete driveway to try
> and postpone the inevitable replacement.
>
> Does new concrete adhere to the older concrete? One pad at the
> entrance to the garage has drooped, and so I have about a 1.5 inch bump
> to drive over. I just want to smooth that with cement from the Home
> Depot, knowing that it will continue to drop a bit further, eventually
> crack off, and require full replacement of the pad one day. Just hoping
> to postpone the inevitable due to finance issues.
>
> If I smooth that bump, will the concrete "stick" to the driveway, or
> will I just be creating a sort of angled piece of concrete that will
> slide off the existing surface?
>
> Hope I explained that okay, as I don't know anything about concrete,
> other than I know that fixing my driveway will one day cost me a
> fortune :-)
>
> Thanks,
>
> Mark
>



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