Foundation crack repair

[f7sp]

anyone know the best place or private contractor around edm area that does different types of concrete work? I have a crack in my foundation,some cracks in my basement floor that need to get fixed up and would like to pour a new pad from a walk out. I'm not too worried about the pad but lookin for someone experienced to fix the foundation crack from inside,and prevent me from tearing up the outside.

 

[Tchetek]

I don't have any recommendations but an FYI that a life time no leak warranty and other repairs covered if the repaired crack ever leaks might be offered by some companies.

Second hand info from my buddy that had a few cracks done. I think they injected an epoxy from the inside.

Don't think it was cheap though.

I can get more info from him if required but somebody here will probably fill us in.

 

[X-it]

Are your cracks getting worse? Houses get built on all kinds of crap, or you can get frost pushing from near by hills.

 

[f7sp]

The cracks on the floor were caused by venting in the floor that sunk a bit. Galvanized vents were put in the floor and surrounded in concrete. So we're thinking of filling in all those vents and having an hvac setup in the ceiling instead. My foundation crack is from the front step hanging on it. The step was surrounded by a concrete pad and is binding on the step pulling it down on the foundation. I'm hoping maybe that epoxy that was mentioned may work from the inside, but most people say the proper way to fix it is to expose it from the outside as well.

 

[snochuk]

The cracks on the floor were caused by venting in the floor that sunk a bit. Galvanized vents were put in the floor and surrounded in concrete. So we're thinking of filling in all those vents and having an hvac setup in the ceiling instead. My foundation crack is from the front step hanging on it. The step was surrounded by a concrete pad and is binding on the step pulling it down on the foundation. I'm hoping maybe that epoxy that was mentioned may work from the inside, but most people say the proper way to fix it is to expose it from the outside as well.

Post a picture of the crack and I can give some advice options on repairs.
Sounds like a repair from the inside is possible.
Patching wit epoxy is always an option as is a cement grout with additives like xypex to waterproof the repair permanently.
Epoxy can not do that if there is minor future movement.

Post some pics.
Abalone is really good at these repairs.

 

[rknight111]

xypex is the stuff. National concrete accessories has it.

 

[niner]

xypex is the stuff. National concrete accessories has it.

Xypex works great for ceiling concrete, have used it on many cisterns on the inside. But if your crack is through the foundation, which it probably is, then you would need to fill that also. Otherwise it will just find another crack or seam.Another good product is sikaflex. It's a rubberized caulking. They use it on precast panels to seal them together. Is there moisture coming through the foundation now?

 

[snochuk]

Xypex works great for ceiling concrete, have used it on many cisterns on the inside. But if your crack is through the foundation, which it probably is, then you would need to fill that also. Otherwise it will just find another crack or seam.Another good product is sikaflex. It's a rubberized caulking. They use it on precast panels to seal them together. Is there moisture coming through the foundation now?

Xypex can be bought at pretty much any concrete store like National Concrete, Unicon, Northlands, Brock & White etc. Xypex works best when applied to the water infiltration side but can work from either side if the "concentrate" is used and a 1/4" X 1/2"deep wriglet is made for application. Keep moist for three days for the crystal transfer into the existing concrete. All crystaline cementitious products need to be kept moist for three days after application.
I like the crystaline products as once applied properly the crystals last forever and are reactivated by water whenever it is present.

Sikaflex 1A and 2C ruberized caulkings are good also as they can stretch/compress 50% of cured size (also use a wriglet) without loss of efectiveness - just be sure to use the optional primer on cleaned surface for a lifetime bond.
Sikaswell is a caulking you can use that swells when it comes in contact with water - if the crack is big enough to get the caulking in - or - make a wriglet.

Most concrete accessories shops will explain what you need to do also.
Missplelled Abalone above in previous post, it's "Abalon"