need literal concrete advice

[This_bio_guy]

so hear me out guys, I have a little issue, concrete is not really my thing so i need help, the slab right outside my aunt's garage door was raised some years back and that was after it started sinking. It seems to be holding up fine, but the expansion joint between the new and old slab is deteriorating. Should I be concerned about this? Is there a good product to seal it up, like a caulk or something?, she's got a few cracks in the concrete also, what's the best way to seal them, and is it even necessary?

 

[concreteer1]

is the slab holding good? if it is, then it's just a matter or taking care of the joint and I'd say use a flexible sealent to fix your problem. If the crack is deeper you can use foam backer rod and make sure you clean the place to have a nice bond

 

[Clipper1]

so hear me out guys, I have a little issue, concrete is not really my thing so i need help, the slab right outside my aunt's garage door was raised some years back and that was after it started sinking. It seems to be holding up fine, but the expansion joint between the new and old slab is deteriorating. Should I be concerned about this? Is there a good product to seal it up, like a caulk or something?, she's got a few cracks in the concrete also, what's the best way to seal them, and is it even necessary?

For the expansion joint, apply a concrete expansion joint filler or caulk like sikaflex. For small cracks a concrete crack filler will get the job done and for larger ones, use polyurethane sealant or concrete patch. Sealing will help with water damage, but if the slab is stable enough, then it's probably for maintenance.

 

[Myrelle Berengari]

For the expansion joint, apply a concrete expansion joint filler or caulk like sikaflex. For small cracks a concrete crack filler will get the job done and for larger ones, use polyurethane sealant or concrete patch. Sealing will help with water damage, but if the slab is stable enough, then it's probably for maintenance.

do you have a go-to sealant brand?

 

[mix&go]

Totally agree, the right kind of sealant really depends on how big the crack is. If there's not much movement, sealing it up is mostly about prevention, you know? Just like a little extra protection to keep it in good shape.