This is a fantastic lead sent in by Derek, one of our readers. Dr. Barsoum, a material scientist from Drexil University in Philadelphia, gives his recipe for pyramid blocks in the following radio interview. After two years of scanning electron microscope studies, he came to the conclusion that Professor Davidovits recipe was not entirely accurate. Dr. Barsoum called Davidovits and asked him what else could work and Davidovits recommended diatomaceous earth. With this key bit of information, Barsoum now believes he has discovered the actual recipe used to construct the pyramids in Egypt.
Start with pool of water and then add:
Quicklime (widely available in stores, but you could make your own by heating limestone to 900 degrees C.)
Mix and wait a few days to allow water to evaporate
At this point the limestone ‘mud’ is placed in earthbags or wood forms. Dr. Barsoum says sand was not used because it does not dissolve and so it’s not part of the chemical ‘glue’ that binds the other materials together. (Although sand could be used as a filler like in the Conradius Geopolymer Formula.
It’s interesting to note that Dr. Barsoum almost gave up on his research because he said he didn’t want to be the one to “demystify the pyramids”. But he knows geopolymer produces 90% less carbon dioxide (a major contributor to global climate change) than cement and so he pressed on with his research. He also points out that this technology is very simple. After all, it’s been in use for 4,500 years. And since limestone is available all over the world, there’s now available an inexpensive ‘green cement’ that can be used for construction.