Concrete? Who said anything about concrete? Rapidly enough? Sez who?
Okay, okay. There wasn't any concrete in the buildings. It was all asbestos. LOL!
Some beams were already sheared by the jets impact, some more on the other side are heated by jet fuel and by the office contents burning, not just one but several floors.
All that jet fuel that blew out into the air, partially unburned and boiled away, did all that damage, right? Nobody knows how much fuel actually burned. But very little of it, if any, would have burned with blowtorch effect? Why not? No blowtorches. No bellows.
In addition, there are all those people walking around in the heat. People just don't have the ability to walk around in heat that approaches 212°, the boiling point of water. And water-boiling heat is way too little to affect steel beams, steel girders, and "non-concrete" (LOL) especially through asbestos.
I am quite curious. See bolded above. Were this true, then you could not be so very certain that the jet fuel and combustibles could not do the job. In fact you we do know the local combustibles, those have been calculated to about 1 lb per square foot. And you do know a range for the jet fuel.
If the planes and the fuel were the only things to consider, there might be questions. But there are all the photographs and videos of buildings coming down in ways they couldn't without demolition.
Regarding local combustibles, that's considering buildings that didn't have an unknown amount of combustibles blown out by the force of the explosions, and that were actually known to have burned.
The range for jet fuel is however far someone transports it? What you even talking about?
The proof that these factors caused the collapse is right in front of you. It is that similar conditions, impact and fire caused an identical outcome in the second building. Ordinary fires can easily produce 1000F temperatures.
Again, this isn't proof because there are too many of these factors that have only been guestimated, and might be factors, but aren't facts, couldn't be known to be facts, except by inside job people who had everything calculated out just the way they needed them, to do the demolition job.
It's very easy to show the calculation that the beams can be weakened by an ordinary fire to the point that the building collapses. Planes hit buildings, fires start, fires weaken beams, building falls.
And it is even easier to show all the pictures of buildings that are engulfed in flames and don't crash... maybe don't come near crashing. Simply Google "burning buildings."
We've been through this before and I showed you what one gallon of jet fuel would do. Guess you've forgotten that? All that's needed is to get the steel to a temperature of 400-800 F. Looked at any strength vs temperatures curves for A36 steel lately?
I didn't forget anything. One gallon of jet fuel in a gallon gas can just sits there. One gallon of jet fuel properly releasing all its nuclear energy might take out an area as large as the whole U.S. - who knows?
In the 9/11 inside job, we simply don't know the conditions of how much of the fuel boiled off without burning, how much of it burned incompletely with great dark billows of smoke, and what tiny amount might have come close to burning efficiently. If the buildings had toppled, there might have been a chance that it wasn't demolition.
What does it matter, about the fuel? All kind of other things show demolition... a 9/11 inside job.