Posted 1/15/2013 13:03 (#2824598 - in reply to #2824158) Subject: Re: Pit silo
+1 no walls, asphalt is fine in low traffic areas. You need a real good base that drains. Concrete in high traffic areas or wetter base. 8" with no rebar. It seems the rebar rusts on cracks and ends up ruining more concrete, maybe fiber in concrete. 4000PSI or better will last 20years plus. Just what works here.
Pit silo
