Concrete Cracking 1

[Inchtain]

Hello,

I wonder if there is a recommended product and procedure for repairing horizontal and vertical cracks at a single concrete foundation for a 9-meter lighting post?!

Thanks,

 

[1503-44]

Got pictures of the damage?

Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

 

[jayrod12]

Yeah, both vertical and horizontal cracking is indicative of something potentially serious being wrong. Pictures at a minimum so we know what level of cracking we're dealing with.

The answer may be, remove and replace the foundation (if possible) or relocate the light on a new foundation if replacement of the existing foundation isn't possible.

Or, if the cracking is essentially shrinkage cracking, you may just be able to caulk the crack and move on with your life.

But until someone can put eyes on it, you can't know.

 

[dik]

If it can be 'patched', I'd use epoxy or polyurethane injection methods. If you can use caulk, the cracks are really wide.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[jayrod12]

The caulking was intended on being cosmetic only. Might actually make things worse cosmetically, but it's an option I've seen used. I agree, epoxy or polyurethane injection is likely better, but that's also only if the cracking isn't to do with something more nefarious.

 

[dik]

I've use 'no shrink' jointing compound for patching, occasionally. I agree... often patching makes things 'real ugly'.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[bimr]

Second the posts by jayrod12 and 1503-44, a picture would be helpful.

Sika makes products for repairing concrete cracks.

https://usa.sika.com/

 

[FacEngrPE]

Repairing cracks without understanding their cause will just hide something important, that could compromise the foundations strength.

 

[BridgeSmith]

Definitely need pictures. If it's flexural cracking, it's unlikely that any repair to the existing foundation concrete will be successful, because the problem is inadequate reinforcing.

Rod Smith, P.E., The artist formerly known as HotRod10

 

[Lomarandil]

With both vertical and horizontal cracking -- is it possible that the lightning post took a hit?

 

[Inchtain]

Thanks for the feedback

Actually, the concrete foundation was cracked because one of the unskilled Contractors workers hit one of the embedded anchor bolts to accommodate the hole of the post base plate.