Saturday, March 27, 2010

Youtube Video of Reinforced Recyled Concrete

http://www.youtube.com/watch?v=Rgnef_xd6jk

1 comment:

  1. Hey Dave,

    I watched your video and found it quite interesting. I definately think this is valuable technology that we should start using nowadays. However, I still have a few questions about reinforcing concrete with polypropelene. First of all, how do the fibres resist the tensile forces in the concrete that the guy was talking about. If the fibres are onle just over an inch long, I don't see how that can really provide strength to a concrete structure. Second, would the strength of the concrete change if the fibres were aligned in a slab as opposed to being mixed in at random angles? I know that the odds of them being aligned are slim to none, but if it did happen and a building failed who would be responsible for that? I don't know if I'm over thinking this or not but I hope my comments will give you something to think about when putting your research together.

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