Given the condition of the concrete, I wouldn't trust it with the forces on a dive board. Typically, the studs/bolts/fasteners need to extend about 6" into sound concrete to be safe.I've only drilled down about ⅜" will either of those anchoring adhesives adhere to what's left of the studs?
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looks like the holes are only going to be filled, doesn't need to be structural...other than to hold a small plug/patch in place.Given the condition of the concrete, I wouldn't trust it with the forces on a dive board. Typically, the studs/bolts/fasteners need to extend about 6" into sound concrete to be safe.