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Sprayed Concrete Adhesives

Sprayed Concrete Adhesives

Sprayed Concrete Adhesives

(OP)
Hello,
I am working on precast concrete panel removals where the panels are roughly 60 years old. On one of the faces of the building, due to the worst exposure conditions, some of the panels have buldged out by about 5-6 inches and have severe cracking and spalling. I am thinking of a method to keep these panel intact over the winter so no chunks fall to the roof below. They will be removed next year and keeping them in manageable portions during demolition will be another challenge. I intend to install a flexible wise mesh on the face of the panels but want to avoid disturbing it with drilling or a roller. Does anyone know of an adhesive that can be sprayed on vertical surface? Then I can put the steel on face. So far, I've only found "strong" spray foams.

RE: Sprayed Concrete Adhesives

More concrete? A light application of gunite will both strengthen the existing concrete and anchor the edges of your wire mesh.

Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/

RE: Sprayed Concrete Adhesives

(OP)
That is a good option. I am trying to find a product that would have more volume and less weight. If there exists an adhesive that would expand like spray foam.

RE: Sprayed Concrete Adhesives

Spray foam is pretty sticky and probably not a terrible option. You could construct a few test jigs and apply some canned spray foam to test the bond strength in-house.

Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/

RE: Sprayed Concrete Adhesives

(OP)
Thanks TehMightyEngineer :)

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