Reply #159: No Encounter W/Solid Structure [View All]

[Christophera]

My site;

http://algoxy.com/psych/9-11scenario.html

outlines exactly how the concrete was pulverized.

The error Make7 found was in my estimated delay periods to cause the structure to pulverize just in front of the falling mass of what was pulverized above. I had the core interval calculated okay to accomdate a freefall, but the floors per section of core timing was wrong.

The explosives built into the cast concrete were a coating on the steel reinforcement bar. The grid of steel bar, center to center, the diameter of the bar, the thinckness of the concrete, can all be calculated and built so that the maximum breakage of concrete occurs.

I have some direct experience with high explosives and have studied them as well as their application in demolition. I've done a good bit of welding and work now as a surveyor where I aid in the alignement of concrete and steel structures occasionally. It is all very common sense once you know how they perform. I was astounded when I saw the first ground zero photos and NO big chunks of concrete were visable. As the cleanup progressed, still no big chunks of concrete, only sand and gravel.

I saw the documentary in 1990 detailing the construction of the towers and it focused on the concrete core as the big slowdown of the tower job. After trying to define how the concrete could be reduced to its granular components, I realized that the explosives would have to be in the center of the concrete, or MASSIVE quanities of explosives would be used making the explosions totally obvious. We did'nt see that, in fact the explosions are minimal considering what is happening. Realizing the explosives had to be centralized made me remember the documentary and the problems the "special plastic coating" on the rebar created.