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Joseph Davidovits

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  • International renown French Scientist, born in 1935, working in France, Europe, USA, Australia and China.
  • Honored by French President Jacques Chirac with one of France's two highest honors, the grade of " Chevalier de l’Ordre National du Mérite " (Nov. 1998).


  • French Degree in Chemical Engineering
  • German Doctor Degree in Chemistry (PhD)
  • Professor and founder of the Institute for Applied Archaeological Sciences, IAPAS, Barry University, Miami ,Florida, (1983-1989).
  • Visiting Professor, Penn State University, Pennsylvania (1989-1991).
  • Professor and Director of the Geopolymer Institute, Saint-Quentin, France (1979 to present).
  • Honorary Professor, Xian Universtity of Architecture and Technology, China (1999).

Professional expertise:

  • World expert in Modern and Ancient Cements.
  • World expert in Geosynthesis and man-made rocks.
  • Consultant (expert) to the European Union Commission.
  • Inventor of Geopolymers and the chemistry of Geopolymerization.
  • Polyglot: English, French, German, Spanish, Latin, Ancient Greek, Hieroglyphs

Member of the following societies:

  • International Association of Egyptologists
  • American Chemical Society
  • American Concrete Institute
  • New York Academy of Sciences
  • American Ceramic Society

International Scientific Award:

  • NASTS Gold Ribbon, awarded at the National Press Club, Washington DC, Sept. 26, 1994, by the National Academy of Engineering, The Federation of Materials Societies and the National Association for Science, Technology and Society.

Articles, Interviews, TV Radio Appearances:

  1. from 1981 to 1992, numerous articles and interviews dedicated to science, technology and archaeology (pyramids) in:
    New York Times, Wall Street Journal, Globe and Mail (Toronto), Sunday Times, Miami Herald, Omni Magazine, Geo Magazine, American Way, Readers Digest, World and I, UPI, Associated Press, Agence France Press, etc; radio: BBC, various American radio networks; TV: NOVA/PBS, CNN, various local TV (San Francisco, Detroit, Miami, etc.)
  2. between 1992 and 1999: declined any public appearance, interview, and TV appearance. Focussing on scientific research.

X-Ray Analysis and X-Ray Diffraction of Casing Stones from the Pryramids of Egypt, and the Limestone of the Associated Quarries (1984)

by Joseph Davidovits

published in Science in Egyptology, Proceedings of the Science in Egyptology Symposia, Manchester, U.K., pp. 511-520, 1984.

The hypothesis that the limestone that constitutes the major pyramids of the Old Kingdom of Egypt is man-made stone, is discussed. Samples from six different sites at the traditionally associated quarries of Turah and Mokattam have been studied using thin-section, chemical X-Ray analysis and X-Ray diffraction. The results were compared with pyramid casing stones of Cheops, Teti and Seneferu. The quarry samples are pure limestone consisting of 96-99% Calcite, 0.5-2.5% Quartz, and very small amount of dolomite, gypsum and iron-alumino-silicate. On the other hand the Cheops and Teti casing stones are limestone consisting of: calcite 85-90% and a high amount of special minerals such as Opal CT, hydroxy-apatite, a silico-aluminate, which are not found in the quarries. The pyramid casing stones are light in density and contain numerous trapped air bubbles, unlike the quarry samples which are uniformly dense. If the casing stones were natural limestone, quarries different from those traditionally associated with the pyramid sites must be found, but where? X-Ray diffraction of a red casing stone coating is the first proof to demonstrate the fact that a complicated man-made geopolymeric system was produced in Egypt 4,700 years ago.

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Publications List (published scientific papers on geopolymer technology and archaeology applications) :

The Library (free loadable selected papers on science and archaeology, and press articles).
These files are written in PDF format from Adobe Acrobat®. Using Acrobat Reader® (a freeware reading software) or the Netscape plug-in, you can view and print any of these documents on any Macintosh, Windows, Dos or Unix system.

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The Pyramids An Enigma Solved cover page
The Pyramids: An Enigma Solved

Prof. Joseph Davidovits, Frédéric Davidovits
Second Revised Edition ©2000
ISBN 2-902933-07-X

Professor Joseph Davidovits proposes a stunning theory of pyramid construction that is based on scientific, historical, and linguistic studies. The theory claims that the Egyptian pyramids were constructed using agglomerated stone (limestone cast like concrete), rather than carved and dragged blocks of natural limestone.

More than 45,000 copies of the first edition of "The Pyramids: An Enigma Solved" were sold from 1988 to 1995, and it is now out of print since 1995.

The book has been revised and edited with several new chapters, new facts, and new astounding discoveries. It adds up to 54% of new material. In particular, the book attempts to demolish the myths and mysteries of how the pyramids and other remarkable "stone" objects were created so long ago.

This revised edition is only available on CD-ROM as an electronic book in Adobe Acrobat PDF format. It is a 427 pages book with 155 high quality illustrations, fully printable, Mac, PC, and Unix compatible. This book is only available in English.



The Pyramids : An Enigma Solved
by Joseph Davidovits, Margie Morris
First Edition - Reprint
ISBN 0-88029-555-4 Dorset Press, 
New York 1990

This title is currently out of print. You can buy it in zShops, or order it used (click above).


The Pyramids : An Enigma Solved
by Joseph Davidovits
First Edition
ISBN 0-87052-559-X Hippocrene Books, 
New York 1988

This title is currently out of print. You can buy it in zShops, or order it used (click above).

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