I’m looking at a couple cracks in the dam wall separating a spa and pool. The biggest cracks are about an 1/8” to 1/4” and seem to lead to hollow areas inside the shotcrete. I’ve leveled out the wall but haven’t started the tiling process yet. Assuming I should fill these cracks prior to applying bondcoat… What is the best product for this? Is there anything else I should do to prevent future failure? Thanks!
- Jul 21, 2013
- 54,775
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Welcome to TFP.
Did you water the gunite for at least 7 days after it was shot?
Cracking is what concrete does as it cures and shrinks. I don't think any of those cracks are cause for worry. You can fill the cracks with hydraulic cement.
Do you have a Pool Builder under contract?
Did you water the gunite for at least 7 days after it was shot?
Cracking is what concrete does as it cures and shrinks. I don't think any of those cracks are cause for worry. You can fill the cracks with hydraulic cement.
Do you have a Pool Builder under contract?
I see a larger aggregate in the pictures than what I typically see in Shotcrete or Gunite, was that a special type of mix?
Thanks for responding.
Yes, we kept wet for 7 days after it was shot.
I’m not to worried about the little cracks but just want to take any precautions now before I lay tile.
This is an owner builder project. I had the shotcrete guy take a look and he didn’t seem too concerned but I guess you’d expect that.
I will try hydraulic cement. Thanks again!
Not a special mix as far as I know. I would assume larger aggregate would be better(?) It may be deceiving because I took it down about a 1/4” with the grinder.