How the hell do you burn down an overpass or elevated highway? It’s concrete and steel. There’s not much there to burn.
‘How the hell do you burn down an overpass...’ Atlanta is another large city run by Democrats...stuff like this happens in these kind of places.
“How the hell do you burn down an overpass or elevated highway? It’s concrete and steel. There’s not much there to burn.”
The sustained high temperature affects the steel yield point. IOW, it weakens the steel I-beams and trusses that support the huge concrete load that makes the road part in the bridge span.
Case in point, the WTC collapse in 911 was more of jet fuel burning that weakened the I-beams and subsequently, the pancaking.
Yes there was. TONS and TONS of PLASTIC. Plastic is made of ....... oil.
“How the hell do you burn down an overpass or elevated highway? It’s concrete and steel. There’s not much there to burn.”
“Watch and become Wise, Grasshopper!” :-)
http://www.sciencedirect.com/science/article/pii/S1877705813012253
https://www.youtube.com/watch?v=LeiOSp9hqLI Concrete under Fire Exposure
https://www.youtube.com/watch?v=CixMjo5VtgA Concrete spalling during a fire test at Efectis Nederland
All Georgia needs to do is hire some former North Vietnamese. The way they repaired the Ho Chi Min trail night after night, they could get I-85 up and running in no time.
With a huge stockpile of pvc conduit and fiber optic cable.