Are Pyramids Made Out of Concrete? (1) great pyramids of Egypt stone used in the Great Pyramid are geopolymers geopolymer.org super adhesive mortar made to fix the stones http://www.geopolymer.org/archaeology... https://www.geopolymer.org/archaeology/p...oncrete-1/ https://www.geopolymer.org/archaeology/p...oncrete-1/ great pyramids of Egypt Source