> In regards to your repeated question:
> I wonder whether Flinders Petrie would satisfy
> you? I am sure you have read this before , but
> likely from his book direct? (rather than this
> source requoting it)
In addition to achieving seamless joins between blocks, the highly polished limestone casing
stones that covered the pyramid were fixed with a 'fine aluminosilicate cement'. The finished pyramid contained approximately 115,000 of these stones, (Over 13 acres), each weighing ten tons or more. These stones were dressed on all six of their sides, not just the side exposed to the visible surface, to tolerances of .01 inch. They were set together so closely that a thin razor blade could not be inserted between the stones.
You are attributing this quote to Petrie but this is the article paraphrasing. What Petrie said, also in the article, is:
.'the mean variation of the cutting of the stone from a straight line and from a true square is but 0.1 inch in a length of 75 inches up the face, an amount of accuracy equal to the most modern opticians' straight edges of such a length. These joints, with an area of some 35 square feet each, were not only worked as finely as this, but were cemented throughout. Though the stones were brought as close as 1/500 of an inch, or, in fact, into contact, and the mean opening of the join was 1/50 of an inch, yet the builders managed to fill the joint with cement, despite the great area of it, and the weight of the stone to be moved- some 16 tons. To merely place such stones in exact contact at the sides would be careful work, but to do so with cement in the joints seems almost impossible'. (7)
"...fine aluminosilicate cement" is a term likely taken from Davidovits.
Regardless, this "cement" Petrie and Vyse are referring to is the mortar/plaster. Talked about before, this mortar is found slopped and slathered all over G1 and a plaster is found in the interior. It was also used to "cement" the paving stones on the plateau so it would not be surprising to find it used for the floor blocks of G1's mortuary temple which should not be confused with modern restoration.
Though the DE had used mortar since the beginnings of Dynastic Egypt (before?), its first use in pyramid construction is found at Meidum and more notably the Bent Pyramid where the latter they used large amounts of raw mortar and clay to "cement" the blocks together and provide a level surface. At some point in construction the mortar became much more refined as they started to kiln dry it making it much harder and compact when dry. Even then there is an improvement between the mortar used at Meidum and that at the beginning of the BP which changed further still. By the time of G1 it was refined even more being more of finer "plaster mortar".
One of the many problems with all this is that Davidovitz only seems to apply geoplymer use to G1 and yet there are 5 other great pyramids of the period not to mention several satellite pyramids let alone all those that came after that this geoplymer business does not apply. So apparently these were all built "the old fashioned way" and G1 was built the magic geoplymer way which looks exactly just like the old fashioned way.
> However, again the basalt paving could simply be
> the simple gypsum or lime mortar used by the AE
> (or restorers) but even so, they HAD actually
> developed cement or mortar, and according to you
> or someone else 500,000 tons of it?
The Great Pyramid Ancient Egypt Revisited, John Romer p157.
Edited 1 time(s). Last edit at 05-Jan-20 16:37 by Thanos5150.