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To: Nifster; Col Frank Slade
Actually what happens with this hot fire over time is the rebar in the cement pillars heats and becomes soft.....connections give and collapse hapoens

If you get cement hot enough, it explodes.

I tried to use some of those cement (made of cement and sand) blocks they use to level trailer homes in a woodstove as a base.

Blew holes through the ceiling.

Concrete is made of sand, limestone dust, and gravel. The less gravel and more limestone dust, the easier it will explode. So, it is possible for it to explode, although I doubt the overpass/bridge exploded.

75 posted on 03/30/2017 5:18:45 PM PDT by UCANSEE2 (Lost my tagline on Flight MH370. Sorry for the inconvenience.)
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To: UCANSEE2

Yes, local news had videos of loud booms occurring, that’s when AFD pulled the fighters back, then it collapsed. Hartsfield Jackson Fire crews came and sprayed foam on the area.


78 posted on 03/30/2017 5:21:16 PM PDT by eaglegso
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To: UCANSEE2

And there is that too.....


95 posted on 03/30/2017 5:46:13 PM PDT by Nifster (I see puppy dogs in the clouds)
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