Thanks walter. (Im really bad in French, I only got main sentences). However, the NMR data and the reactions presented are not greatly different from low temp curing of adobe. The minerals listed are all evaporitic deposits .
WhT NEEDS TO BE DONE IS A MAP OF WHERE THESE SUUPOSED CEMENT ROCKS WERE FOUND. tHERE MAY BE A PATTERN WHERE "CEMENTITIOUS STUFF" WAS USED TO SAVE TIME
iM REALLY DUBIOUS OF workers hauling buckets of wet concrete up and down ramps and then being form set without any evidence of "bad batches" or even the tools. How about kilns and mixing areas (you wouldnt need a big area if you were only making an adobe). COncrete blocks of a ton or more would leave a big working area . Wheres a "dump area"? I think that, to credibly pose this argument, some srcheologists had better come up with tools and some signs of the industry. Im willing to consider the adobe concept and surface ardonemnet or tunnel liners , because there is ample evidence of plastering and painting of temple interiors from Old Kingdom sites, and theres plenty of anhydrite around for a weak concrete that would give those high Aluminum readings in the NMR.
The fact is, the roman concrete industry has left great big feetprints of quarries, kilns, and pozzoloni sites. These can be seen from air photos for Chrissakes. Where are they in Egypt?
My usual disclaimer is that I have no dog in this fight. Im just a skeptical bystander whose used to a little more rigor in "settled science" pronouncements/