Back in 1982, researcher Joseph Davidovits proposed that the Great Pyramid's ~2.4 million blocks weren't quarried but poured in place using a geopolymer binder—a type of alkali alumino-silicate-based concrete cast into molds. He pointed to fossilized seashells scattered chaotically and unusual binders never found in natural stone. Tentative theory, but fascinating to consider! 🏛️
Joseph Davidovitz's 1982 paper proposing cast pyramid stones
EgyptTheory
Key facts
- Joseph Davidovitz proposed in the 1980s that pyramid stones could be cast in situ using limestone poured into wooden molds
- The Great Pyramid contains approximately 2.4 million blocks
- Paper published in 1982
- Fossilized seashells in limestone found scattered chaotically rather than in natural sedimentary layers
- Silicone spheres and unusual binders found in the stone that do not occur in natural limestone
- Zahi Hawass banned the study of pyramid stone in 1983
- The Diary of Merer documents limestone transport between Tura and Giza
Site mentioned
Sources
Gathering 'concrete' evidencenews.mit.edu
The materials and know-how needed to cast the pyramids ... Joseph Davidovits, who invented (or perhaps reinvented) the geopolymer formula.
Joseph Davidovitsen.wikipedia.org
Joseph Davidovits (born 23 March 1935) is a French materials scientist. He posited that the blocks of the Great Pyramid are not carved stone. Known for ...
Pyramids are not made of polymers, say expertspubs.acs.org
Instead of cutting and hauling huge stones, Davidovits asserts, ancient peoples built molds to form the stones using the low-temperature ...
Joseph DAVIDOVITS | Professor Emeritusresearchgate.net
Joseph Davidovits is known by the scientific community for being the inventor of geopolymer science. in the Egyptian pyramids … cast like concrete)?
Cutting-Edge analysis proves Davidovits' Pyramid theorygeopolymer.org
Joseph Davidovits proposed that the pyramids were cast in situ using granular limestone aggregate and an alkali alumino-silicate-based binder.
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