[S]uitable ingredients were available in... millions of tons. Mud from the Nile... contains alumina and is well suited for low-temperature mineral sy… - Joseph Davidovits

[T]he priests of had long been adept at the art of making extraordinary cements. Cement found in... the Great Pyramid... is still in good condition. This ancient mortar is far superior to cements used in construction today. The modern used to repair ancient Egyptian monuments has cracked and degraded...

[I]t is very difficult to translate a technical text... if you are not aware of the signification of the keywords. ...[I]magine that I got a text from Egypt that has been translated... [as] "make fluid stone with ashes insect in glass water"... what we have in reality is the description of, to make cement with fly ashes and water glass.

In my pursuit to develop new inorganic polymer materials, I was struck by the fact that the same simple hydrothermal conditions governed the synthesis of some organic plastics in alkali medium, as well as s and s. Thus and polycondense into... ... On the other hand, the reacts with NaOH at 100-150°C and polycondenses into hydrated ... or hydroxysodalite... I proceeded... to develop amorphous to semi-crystalline three-dimensional silico-aluminate [-Si-O-Al-O-] materials, which I call... s (mineral polymers resulting from or geosynthesis).