I believe the hydraulic cement can be applied as water is seeping in - check the label. Make sure to wear gloves and use some kind of trowel. When I was doing similar stuff a few years ago I didn't and my fingers ended up really chewed up trying to push the stuff into the crack by hand. Plus it's not good on your skin; hands get really dry and cracked.
Quikcrete as others have said is not the solution. For a quick fix, I would look at an injectable, hydrophilic epoxy sealer.
The real solution is to call in a specialist. Your moisture protection really needs to be on the outside of the foundation. You need as well graded backfill to all seepage down to the drain tile that you also need.
I'm not calling a specialist. I'm renting the house, and if the landlord doesn't care enough to do it, then why should I? I'm just looking for a high quality bandaid. Sounds like I found one.
I'll either go with dry lock, hydraulic cement, or both. I planned on using a trowel, as applying it by hand sounds awful. Two of these cracks are literally so small, that I won't be able to push anything into them. They're microscopic, so I'll be patching over them. Granted if they're that small, the stuff will get in.
In 1984, I was hospitalized for approaching perfection.
If I can use the DryLok while the walls are wet, I might go that route. Do I need any extra tools for that?
Also, if it makes a difference, one of the cracks is in the floor, the other is an inch up from the floor.
If your cracks are there, it has nothing to do with frost as it only affects the top 1-2 ft of ground if no snow is insulating the ground. This year unless the ground has been exposed all winter, there isn't much frost at all to speak of. With there not being much frost, the melting snow is draining through the ground so as a result the ground it totally saturated right now.
I would walk around the outside of the house to see if you have any ice buildup on something that would cause melting snow to drain towards the house. Do all you can to promote draining away from the house especially this year. Stay away from the quikrete as that stuff doesn't seal and is very porous. I would use some sort of epoxy but go see the guy above from Lowes and they will get you the right stuff.
I've used DryLok Fast Plug hydraulic cement before with good results. Town I live in has nasty clay soil that puts alot of pressure on foundations and doesn't hold much water, to seepage happens in quite a few basements.
You can use it while the walls are wet. Just chisel out the cracks some, mix and install.
This, make sure to chisel the cracks as deep as you can so you fill the hole with as much material as possible. These fast plug products are great, but fast is fast, have all the cracks ready to fill before you mix it up and work fast or do it in a couple batches.
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