Min concrete strength needed
Min concrete strength needed
(OP)
I have a concrete pad, reinforced and 15" thick, it has been specified a min of 4500 psi, however I have been supplied the 5 day test breaks (reaching 3300 to 3500 psi) and asked can this support an 18 wheeler loaded (80,000#) can drive on this at day 5 and day 6. I have declined but told to "research it more" so the question is, is this something that can be achieved or steer clear of and wait.





RE: Min concrete strength needed
From a flexural view, you likely have minimum flexural reinforcing and a low concrete strength has little influence on flexural strength. The slab is likley stiff enough that flexural tensile strength is providing much of the strength and this will crack at an early loading condition in particular with 'channelised' loading. Best not to.
Dik
RE: Min concrete strength needed
RE: Min concrete strength needed
Learn from the mistakes of others. You don't have time to make them all yourself.
RE: Min concrete strength needed
RE: Min concrete strength needed