Does anyone know the best way to determine the thickness of the bottom of the shotcrete pool shell. The shell has not been plastered yet.
I have some exposed rebar in the bottom of the pool and while repairing it found out that the thickness in that area is only 3-4 inches. I would like to determine if this is just a localized condition or if the whole bottom is too thin. Pool plan states bottom thickness to be 6 inches.
Im thinking that I could roto-hammer some some 1/2" or 5/8 holes with the depth stop set at 5 inches. If I don't punch through assume that I am close enough to the 6" thickness. Afterwards, I could fill the holes with hydraulic cement, rapid set, mortar? The larger 5/8 hole would be easier to fill than a smaller holes.
Anyone have any advice / other ideas?