https://www.youtube.com/watch?v=lifCWsD4ckc
bottom line - water gets into rebar and it rusts and cause the structural assembly to lose strength nice lecture starts with the Greeks and their building designs he speaks of the compressive and torsional characteristics of concrete "torsion" = putting a twisting force or bending force into a concrete beam or column (he sorta muddles over this - iirc a concrete beam that is under a load will experience compressive forces along the top and stretching / expansion forces along the bottom - it is a little bit complicated) (think about snapping a twig - you rip the twig apart across the top but you smoosh the bottom parts together) -- You received this message because you are subscribed to the Google Groups "massfire" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/massfire/CAFXWwKbAjm4egKXUgpgncaF50RfUDLz8X8APNkbfqQEjKogXzw%40mail.gmail.com.
