"Superglue" for Concrete Repair

[KimWT]

Hi!

I heard precasters use Superglue for crack repair.
I am not sure how this will work in the concrete.
When I search the internet, I cannot find good info related construction use.
I guess this repair method is not popular.

Is this really proper repair product?
I wonder why they do not use Epoxy.

Thanks!

 

[TehMightyEngineer]

I can't speak for every precaster but we most certainly do not use Cyanoacrylate for concrete crack repair. We use a proper crack injection repair or surface sealant to repair any cracks deemed objectionable.

Ian Riley, PE, SE
Professional Engineer (ME, NH, VT, CT, MA, FL) Structural Engineer (IL)
American Concrete Industries

https://americanconcrete.com/

 

[BUGGAR]

I have heard Epoxy called the "super glue" for concrete, but don't think it was literal.

 

[msquared48]

If it is used for repairing ornamental precast concrete, the only reason I can think of is that it dries clear.

Mike McCann, PE, SE (WA)

 

[charliealphabravo]

I found this paper that references the use of cyanoacrylate.

Edit: It looks like the concept is as a super-fluid material to seal fine cracks from water ingress and prevent deterioration of the steel.