Can shotcrete go over mud?

miltonmom

Well-known member
Jan 17, 2021
45
Georgia
Pool Size
22680
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 700
Hi all,
Supposed to get shotcrete (finally) on Tuesday, but there is still some pretty muddy spots in the deep end. We've used the sump pump, but some water remains. Is that okay for them to shotcrete if it doesn't dry up by Tuesday AM?
Many thanks!
 

HermanTX

Gold Supporter
May 20, 2020
2,384
Katy TX
Pool Size
14600
Surface
Plaster
Chlorine
Liquid Chlorine
I would think it would be best to use a pump or shop vac to remove water so you have 3 inches of dry space below the rebar. You want the rebar in the middle of the shell. While water is applied to aid in hydration/curing, the Shotcrete is ready for water as soon as the initial set is complete, which is about 4-6 hrs after placement. So if you can ensure there is adequate space below the rebar that should allow for sufficient volume of shotcrete to be added. It shouldn't matter if it is dry or wet soil below the 3 inch gap.
 

miltonmom

Well-known member
Jan 17, 2021
45
Georgia
Pool Size
22680
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 700
Did your PB ask you to water the concrete after the shoot? Ours is saying that it is not necessary. Any other PBs out there would love to hear your opinions. Supposed to be 90 degrees today. Many thanks!