Hello, I thought I might post some images here. I had a pool shot. They turned up short handed. 3rd truck left with concrete fine of last load just got it with a long wait to clean the pump of off concrete (cold joints) shapers were finishing in the dark. Bench has a bow in it. Floor a mound and scaling as they dumped a sand plug there. Bench has holes in it. Did went wetting for curing. Fast forward 3 week we took the out of ground section form work down and most of the bar chairs have no concrete. The highest part of the pool at the corner has voids, pipe work is exposed and when I put the hose in various holes the wall lit up with cracks and water flows out of sections. What to do?
Shotcrete voids etc
- Thread starter timomo
- Start date
All of the holes need to be filled in with hydraulic cement. It may be done by hand or they might decide to bring in another truck full.
As for the wave and such I would point them out and ask how they are going to fix it and let us know what they say so we can advice the best way to move forward.
What will be going on the outside wall?
The water leaking is normal if you have a higher water table.
As for the wave and such I would point them out and ask how they are going to fix it and let us know what they say so we can advice the best way to move forward.
What will be going on the outside wall?
The water leaking is normal if you have a higher water table.
Can you provide pictures from further away of 3-4-7 to give a better overall view of the area in question?
The back half is in ground shot against rock. The front wall on a deep pier footing. The out of ground section that is highest is basically hollow. It seems the shotcrete did not get past the reo in alot of that area, they were rushing this section as the truck was going off. Put alot of water in the mix to try and get it out. I put the hose in a hole in the outside of the wall and water leaked into the pool on the inside. I'm assuming this wall needs opening and loose material chipped out and boxed up again for structural grout?.
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For the outside wall we hadn't decided. Probably would have left if off form but might render it.
At the very least it needs to be waterproofed inside and out. Me? I would put some pretty stone on it OR even paint a mural on it.
Is the reo your describing “rebar”?
You describing the truck going off and the crew adding lots of water to the mix just to get it out is concerning when it comes to Shotcrete.
Voids in the application are also concerning. The rebar cage is required to have a minimum of Shotcrete coverage.
Shotcrete is mixed within very specific parameters, duration of time from being batched to application, number of rotations of the barrel and amount of water that can be added to the mix while still in the barrel prior to application.
You can find most of this information on the batch ticket that is provided with every load.
The most common weeping is from protruding plumbing pipes, not seen in your pictures.
Tha
That weeping is from that water I put in the holes to try and see if they were very big. Turns out they are, one of those cracks follows a pipe that is imbedded in the wall. The other appears to be on a cold joint. Yes, reo I mean rebar. The first holes I saw were the bar chairs as isolated holes. The deep end is actually huge cavities behind a thin skin that was formed on the formwork. Behind that skin are holes/voids/cavities. The shotcrete company intercepted the tickets from the trucks so I dont have any.
It is time for you to put all of this in writing to your PB to get it on the "record". Ask him how he plans on fixing all of your VERY VALID concerns. Got to start a paper trail for just in case.
I would ask the PB to come to the site. Show him where there is very thin covering. Ask him to hit that area with a hammer so he can see just how thin it is.
I would ask the PB to come to the site. Show him where there is very thin covering. Ask him to hit that area with a hammer so he can see just how thin it is.
Thanks. I'd like to get some options on what people think is the correct fix. Do you chip it out and shotcrete over it? Bulk it out? Form and pour structural grout/hydraulic cement? Form and pour normal concrete and add a few inches to the thickness of the wall?