The old trick for fixing honeycomb that I stopped using

I used to patch honeycomb spots on walls with a dry mix and a rubbing stone. It worked okay but took forever and looked rough half the time. About 2 years ago I switched to using a slurry of cement and water brushed into the voids before the final set. It bonds way better and the finish matches the surrounding concrete almost perfect. Now I only patch dry if it's a tiny nick smaller than a dime. Anyone else find a better way to deal with honeycomb on vertical pours?

2 comments

2 Comments

henderson.kim1mo ago

Slurry works fine for small stuff but I've seen guys use it on big voids and then act surprised when it shrinks back or cracks out. Concrete moves, especially if you're not matching the moisture right. A dime sized nick I'd still just leave alone half the time. Is a tiny honeycomb spot really worth mixing up anything for?

norag551mo ago

My buddy Mike tried that slurry trick on a garage wall last summer and it saved him from having to redo a whole corner that looked like Swiss cheese. He swears he'll never go back to the dry patch method either.