Putting in a 3x3x3 concrete foundation for an antenna...
My grandpa is putting up an antenna for his shortwave radio. He dug out a 3x3x3 foot hole to install it, but the companies he called say they can't get a truck in close enough to pour so he was going to mix the concrete and pour it himself.
Well, he's 90 years old, so my brother and I are going to do it for him, but none of us have ever done anything with concrete before.
My grandpa says he thinks the best way to do it is to pour it and let it cure in segments so it will dry faster, but I was thinking it would be better to mix and pour it all at once (after renting/buying a mixer). This is going to take 60 bags of concrete.
Do we need to use rebar in this? Do we just mix it according to directions and then fill the hole and let it go?
I wanted to dig the base down another foot or two just to be safer, but he already poured a couple of bags in and dumped water on them