Anchor Bolt Repair projects

[SKJ25POL]

I am looking for some past projects have been done on corroded anchor bolts for industrial structures.
Anybody has done that can share with some photo or if you know anywhere on internet I can see

Alternative repairs and methods and ideas what I am looking for.

I appreciate your direction

Thank you
Babak

 

[TLHS]

You don't have a lot of options for corroded anchor bolts. If they're generally okay except for visible corrosion, you can blast to clean steel and coat them. Otherwise, if it's just the top that corroded you can cut the bolt down and install an extension. If it's corroded into the concrete or is otherwise not suitable to splice onto, you're pretty much into engineering some sort of post installed anchors and a way of attaching to those. That's going to be heavily situation dependent.

 

[SKJ25POL]

TLHS (Structural)
Thank you.
Have you had any projects in this nature?

Any reports?

Thank you

 

[EngineeringEric]

I have done some... I basically have epoxied new rods through a new base plate configuration after cutting old off at the surface and treating surface. For deep anchor bolts specify something that cures slower like Hilti HY 500 (200 cures faster). Depending on application i have Stainless AB to keep it from happening again.

 

[SKJ25POL]

EngineeringEric (Structural)
Do you have some pics of before and after repair by the chance?
I love to see the work and learn from your work.

Thank you

 

[EngineeringEric]

I will check in the morning what photos i have. I don't have any from industrial applications as photos are not allowed and the few commercial ones were for high profile clients that won't want photos on the internet...

I'll see if i can find one what that would work. Really what i am proposing isn't anything too special

 

[JedClampett]

I am doing one now. But I'm trying out some unexplored stuff (at least for me) involving chipping out the concrete around the bad anchor and welding new threaded stock to it.
I have one bad anchor and it's pretty large. I use a lot of epoxied anchors but it's always the second resort to me. I'd like to repair the one that's there if possible.

 

[SKJ25POL]

Thank you