I’ve got a 10 year old concrete driveway that was poured in several roughly 10’x10’ sections. From the street, the first few sections slope down about 5 feet to the house, and the last section slopes back upwards a couple of inches to keep runoff out of the garage. The driveway’s also 3 sections wide, sloping slightly to the left to ensure drainage, maybe a 3" drop over a 30’ run.
But now it’s starting to need a little work. I do a lot of my own work, I just need a few hints about special tools, materials, and tricks of the trades …
- Expansion joint replacement.
The expansion joints between sections were installed with that bark-like quasi-wood quasi-felt stuff that’s been used for years. It’s about 3/8" thick and 2" tall.
Eventually that stuff get sodden, rots, and falls apart leaving a gap between each slab that gets invaded by weeds. That also lets water get under the slabs, contributing to settling.
I’m looking for a replacement joint filler, ideally some goo I could inject into the gap after I clean out the old expansion material & dirt. I could certainly go down to the local DIY Big Box and buy a case of outdoor caulk, but I’m looking for a product meant for, or at least commonly used for, this specific application.
- Uneven settling.
One point where 4 sections meet has settled 1/2" or so, resulting in a belly in the middle of the driveway which doesn’t drain. We get plenty of rain around here, and that near-perpetual 10’ diameter x 1/2" deep puddle is a problem. I’d like a controlled way to raise two sections on one side 3/4" and the other two sections about 1/4", restoring the proper slope.
It looks like these 4 sections are not separated by expansion joints; they’re just depressed score lines like most sidewalk “cracks”. The concrete below the score line has cracked as they’ve settled, and I’m predicting eventual problems with freeze/thaw as water works into those cracks. After I get them jacked into place I’d want to seal the cracks with something.
Jacking these slabs might not be DIY, but if anyone has any practical DIY experience, advice, or even cost WAGs for a pro job, I’d greatly appreciate it. Ditto suggestions on penetrating crack sealers.
Thanks in advance …