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NC Ohio | I agree with you on this. Site conditions have a huge impact on what you need to do. Your family knows the soil/site & how you will use it. Your brother knows his stuff about concrete, go with what he says. Your actual mix design can have huge impact on how it holds up, just saying xxxx psi doesn't mean anything except how the test cylinders will test out.
Most concrete failure is caused by the base conditions. HERE we need stone base for it to hold up because of varuable soils & subsoil moisture. If you are dry & have good soil you have a lot less issues.
The company I work for pours a lot of concrete. In 50+ years we have learned several things.
-Fiber mesh is worthless.
-Wire mesh is only good for holding a slab together after it breaks
-Proper base is extremely important
-Proper mix design is also extremely important. We specify every ingredient type, size & weight for every different application
Sometime rebar mats are required, but not very often. Typically only with extremely heavy point loads or bad soil.
Edited by fowllife 2/27/2013 08:22
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Got bids for a silage slab
