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OT: Fires don't cause steel-reinforced structures to collapse

/conduit.

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That's right, the same stuff used in "flooded" cables for outdoor undergrou nd burial. Page 9

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"Formulated synthetic hydrocarbon fluids and w ax/polymer blends that provide oxidation inhibition and prevent moisture ingress in telecom cables" The hy drocarbon fluid and wax sounds like something that will do a really good jo b of burning intensely! They say the perp placed a chair on a shopping cart and set that on fire, which somehow ignited the cable spools.

Reply to
bloggs.fredbloggs.fred
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Reinforced concrete runs into serious trouble at 600oC. You can see from th e photos the steel beams stayed intact. The concrete cross beam they were s itting on is what snapped cleanly at the edge and let the whole span drop. Someone was trying to save a dime in the construction so the steel beams we ren't long enough to even make to the center of the crossbeam and bear more directly on the concrete ground columns, they were bearing down on the edg e of crossbeam.

Reply to
bloggs.fredbloggs.fred

I don't know specifically which photo you're talking about but the beams can't reach the center of the cross beams. Expansion of the road deck has to be taken into account.

Reply to
krw

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