Binding Energy of Concrete

[kbo234]

Has anyone seen any analysis of energy required to pulverise all the concrete in World Trade centre 1 (say) into fine dust particles of approximate diameter 60 microns. If the binding energy per Kg for this transformation can be estimated and the total mass in Kg of the concrete is known (this figure should be easy to find), then the total energy for the pulverisation can be calculated by simply multiplying the two numbers.

This energy for this pulverisation can only (according to the government narrative) have been provided by the loss in gravitational energy of the total structure from its standing to its collapsed state. (heat energy of the jet fuel would have negligeable effect in this transformation).

This loss of gravitational PE is easy to calculate from a reasonably accurate estimate of the mass of the building and its total height.

This gravitational loss provided ALL the energy for the pulverisation of the concrete and the severance of the many massive steel beams in hundreds of places. If this gravitational loss of energy is significantly less than the energy to pulverise the concrete and cut the steel then this difference would again be a kind of proof that the government story is a lie.

Someone must have worked on this type of calculation surely. Can anyone direct me to it?

One can be sure that the mismatch in the figures will be staggering.

[scubadiver]

The link I thought I had I don't have.

[kbo234]

I found this, written by Jim Hoffman, on:

http://hawaii.indymedia.org/news/2003/12/3961.php



Vast amounts of energy were released during the collapse of each of the Twin Towers in Lower Manhattan on September 11th, 2001. The accepted source of this energy was the gravitational potential energy of the towers, which was far greater than the energy released by the fires that preceded the collapses. The magnitude of that source cannot be determined with much precision thanks to the secrecy surrounding details of the towers' construction. However, FEMA's Building Performance Assessment Report gives an estimate [Ref. (1)]: "Construction of WTC 1 resulted in the storage of more than 4 x 1011 joules of potential energy over the 1,368-foot height of the structure. "That is equal to about 111,000 KWH (kilowatt hours) per tower.

Of the many identifiable energy sinks in the collapses, one of the only ones that has been subjected to quantitative analysis is the thorough pulverization of the concrete in the towers. It is well documented that nearly all of the non-metallic constituents of the towers were pulverized into fine powder. The largest of these constituents by weight was the concrete that constituted the floor slabs of the towers. Jerry Russell estimated that the amount of energy required to crush concrete to 60 micron powder is about 1.5 KWH/ton. [Ref. (2)]. That paper incorrectly assumes there were 600,000 tons of concrete in each tower, but Russell later provided a more accurate estimate of 90,000 tons of concrete per tower, based on FEMA's description of the towers' construction. That estimate implies the energy sink of concrete pulverization was on the order of 135,000 KWH per tower, which is already larger than the energy source of gravitational energy.

The rapid expansion of the 'pyroclastic flows' of particulate debris also required enormous amounts of energy, whose only 'narrative' source is the gravitational P.E. of the tower....This energy also effected, of course, the cutting of the massive steel columns into thousands of small pieces. (It is hard not to giggle at imagination involved in the creation of such a surreal comic fantasy, although this only becomes clear to the mind when the whole collapse is broken down into its component parts. Lewis Carroll could hardly have invented such a dreamlike improbability).

If the estimates of mass, binding energy etc. are firm then this analysis does indeed PROVE that the towers were brought down by explosives. All the government are left with are FR Greening's magic steel-cutting aluminium panels that inexplicably converted themselves into aluminium powder before going about their wicked work. Laughable, but you have got to give the guy some credit for sheer bloody effort.