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Posted by BobK207 on September 24, 2006, 6:54 pm
como1982@hotmail.com wrote:
> Hello All,
>
> I'm writing with a question regarding the repair of a concrete driveway
> that I hope somebody might be able to answer for me...
>
> I have a ten year old concrete driveway made up of four sections that
> is in very good condition apart from the fact that small gaps have
> recently developed between some of the sections that were not connected
> by expansion strips.
>
> I know that, unless I close these cracks up before winter, the ice and
> snow will work them apart and I will have much more trouble down the
> road.
>
> My plan is to clean any debris out of the gaps and then fill them with
> either foam backer rods or cane fiber expansion joint strips. After
> that I was going to treat them with some sort of polyurethane sealant.
>
> Does this sound like a reasonable plan? Are there any improvements that
> might be made to it or anything that I'm missing? Thanks in advance for
> any suggestions you might provide!
>
> Christopher
I recently used SIKA self leveling grout......comes in one of those
huge caulking cartridges.
The gun was only $15 & the stuff worked great.
Got them all at HDepot
The stuff is rather runny when applied so use a backer rod. and keep
the grout cross section towards the low limit of the specs.
I had a rather troublesome application...variable joint width & I had
some leaks....be prepared for leaks by having some extra backer rod &
scissors handy so you can cut a piece to plug the leak....just stuff
the piece below the surface with stick or probe.
The stuff appears to cure by chemical reaction so warmer weather is
better.
I looked a little to bright "light grey" when applied but mine has been
self staining from concrete / dirt / dust....perfect match now.
cheers
Bob
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