Recent content by Archimedes

Slump tests are a qualitative measurement, and don't really represent anything other than a consistent visible measurement of the consistenecy of the mix. Even though our specs and notes still call out the slump, I personally think the test is overrated and often allow the the results to be...

You'll have to make an educated guess as to how that load will be supported by the soil at the bottom of the slab, i.e. the reaction, and treat it like an "effective" spread footing, in which case bottom reinforcing is what you'll need. However, If this is a permanent installation, I would...

WOW! As a structural engineer myself that scares the crap out of me! I worry all the time, that I've overlooked something, didnt' understand the behavior of some key member as I thought I did, or don't realize I'm missing some common code requirement.