How to Repair a Crack in Concrete
LESLIE: Marta in Iowa, you’ve got The Money Pit. How can we help you today?
MARTA: I have a set of concrete steps that are adjoined to my concrete driveway. And they are separating. The step is separating from the driveway.
MARTA: And I have a big crack and it’s – and the concrete is kind of starting to eat away. But I also have sand coming out and I want to know what I can do to, well – because I’ve got to fix it. I don’t know if I can just – do I use concrete in there? Do I use a sealer in there? I don’t know. But I’ve got to do something and I don’t want the crack getting bigger, especially with winter coming.
TOM: Right. And you’re correct because if you do let it get bigger, what’s going to happen is water will get in there and it’ll freeze and expand. So you do want to seal that. I would take a look at QUIKRETE.com – Q-U-I-K-R-E-T-E.com. They’ve got step-by-step videos there that will take you through this process.
But essentially, you’re going to use one of a number of different types of crack-repair or concrete-repair products that they sell premixed, ready to rock and roll. And you’re just going to apply it. Some come in caulking tubes, for example; some come in squeeze bottles. You apply it to those cracks – let it flow, let it settle, let it dry – and that will seal the crack and stop it from any further deterioration.
MARTA: Because it’s up along the house, too. And I put some concrete in there but …
TOM: Well, the problem is you can’t use regular concrete. Because if you put concrete in by itself, what happens is it will freeze and break and crack and fall out rather quickly. That’s why you need to use the products that are designed for repair because they both adhere to the old concrete and then they stop the water from flowing in.
TOM: And that’s going to do the job. OK, Marta?
MARTA: Sounds good. It was QUIKRETE.com?
TOM: QUIKRETE.com. Thanks so much for calling us at 888-MONEY-PIT.