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Replacing wood expansion joints in concrete driveway

Posted on 11/9/21 at 1:14 pm
Posted by Tiger1313
Houston, TX
Member since Oct 2006
88 posts
Posted on 11/9/21 at 1:14 pm
I have several locations where my wood expansion joints have rotted away causing gaps in my driveway that just look like crap and is annoying.

Has anyone had any luck with replacing? Maybe using a product called Trim-A-Slab? Any cheaper alternatives?
Posted by ds_engineer
South Mississippi
Member since Dec 2014
386 posts
Posted on 11/9/21 at 1:27 pm to
Have you looked at using backer rod and a self leveling sealant?
Posted by keakar
Member since Jan 2017
30152 posts
Posted on 11/9/21 at 1:36 pm to
they make stuff in a caulking tube to fill cracks you can use, but the best result is pour some hot tar in to fill the cracks. just tape off the area so you dont make a mess
Posted by lsujunky
Down By The River
Member since Jun 2011
2279 posts
Posted on 11/9/21 at 2:20 pm to
Backer Rod

Sika self-leveling sealant

You will also need a caulking gun for a 29oz tube
Posted by Sidicous
Middle of Nowhere
Member since Aug 2015
17307 posts
Posted on 11/9/21 at 6:35 pm to
Mom’s driveway in Hot Springs Village had the wood expansion joints replaced when we went to sell it. Handyman guy replaced them with 2x4. Only took a couple of hours and like 6 boards.

Looked great, worked well for the 3 months or so before moving. No idea how they are holding up for the last 3 years though. I do know it was pressure treated wood though.
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