Joseph Davidovits

I am glad to announce my new book in English, titled “They have built the Pyramids”. It is the translation in English of my last French book “La nouvelle histoire des pyramides” (2004-2006). You may download the first chapter at the Geopolymer Institute web page, archaeology, pyramids, at the address  Pyramids (4) Videos and download [...]

Le fameux MIT, Massachusetts Institute of Technology, Boston, USA, endosse la théorie du Prof. Davidovits sur la fabrication des pierres des pyramides en calcaire ré-aggloméré (béton de calcaire reconstitué). Au MIT, Prof. Hobbs et deux collègues, ainsi que des étudiants construisent actuellement une mini-pyramide en utilisant les méthodes préconisées par Davidovits.
Pour en savoir plus allez [...]

The famous Massachusetts Institute of Technology, Boston, USA, is supporting my re-agglomerated stone (concrete) pyramid theory. At MIT, Professor Hobbs and two colleagues and students are experimenting the construction of a small scale pyramid using my theory.
Go to the Boston Globe article of April 22 2008 titled
A new angle on pyramids
Scientists explore whether Egyptians [...]

Das ZDF hat am Sonntag den 2. März 2008, um 09:05, in der Sendung Sonntags, eine kurze Zusammenfassung meiner Pyramiden – Theorie gesendet (gegossene Steine, Kalkstein Beton Quader). Die Sendung führte Werner Küstenmacher in “Tipp der Woche”.
Hinweise zur ZDF Sendung Das Rätsel der Pyramiden
Weitere Informationen erhalten Sie:
- auf Englich, Geopolymer-Pyramids ;
- auf Französich, Pyramide en [...]

Malgré ma présence assez constante dans les médias écrits, il semble y avoir un blocage au niveau des documentaires TV en français. Ce n’est pas le cas pour certaines TV étrangères avec des reportages interviews tous récents par Antena 3 (Espagne) et RAI 2 (Italie). Nous avons aussi tourné avec un producteur américano-colombien un documentaire [...]

After more than 10 months of hard work (sometimes 15 hours per day) I am proud to announce the release of my book entitled: GEOPOLYMER CHEMISTRY AND APPLICATIONS with ca. 590 pages and 26 Chapters.
We are presently in the final editing phase and we expect to get the first exemplars printed during end of February [...]

30 June-04 July, Verona, Italy
Geopolymer Special Event at the International Ceramic Conference ICC2 (July 01). I’ll Chair the Geopolymer Event and present the program Geopolymers in Ceramic Brotherhoods (July 04). See the ICC2 program at
June 10, Brno, Czech Republic
3rd International Symposium Non-Traditional Cement & Concrete. Brno University of Technology and ZPSV Uhersky Ostroh, a.s.
I’ll Chair [...]

Première Maitrise en sciences des géopolymères à l’Université Tomas Bata , Zlin, République Tchèque.

Introducing the first Master’s degree course on Geopolymer Engineering, at the Thomas Bata University, Zlin, Czech Republic, Europe.

Three basically different theories on pyramid construction were all validated “scientifically with 3D simulation “. Accordingly, all three would be exact and explain the true methods used by the ancient Egyptians. Actually, it would mean that none of them is accurate, because science cannot validate at the same time several theories, which are fundamentally different and opposite in their concepts.

Il existe des théories sur les pyramides fondamentalement différentes, et pourtant, la simulation 3D les valide «scientifiquement» toutes. Elles seraient donc exactes. En réalité, cela voudrait dire qu’aucune ne l’est, car la science ne peut pas valider des théories foncièrement différentes et opposées dans leur concept.

The world press is commenting the study published by the French science magazine Science & Vie and the scientific paper released by the Journal of the American Ceramic Society , December 2006.
Here some links and excerpts from major English, American and German news papers
Materials Science: Concrete evidence
The scientific magazine NATURE, vol. 444, p. 793 (14 [...]

It is obvious that, with his statement published on December 1, 2006, in the New York Times , Dr. Hawass, General Secretary of the Egyptian Antiquity Organisation, thought that the renowned material scientists, professors M. Barsoum, G. Hug and G. Demortier, had analyzed modern Portland cement concrete instead of the re-agglomerated (reconstituted) limestone, as claimed [...]

Dans le numéro 1071, de décembre 2006, SCIENCE & VIE, publie un article de 10 pages dont le titre est : Pyramides en fausses pierres, la science persiste et signe, par Jean-Philippe Noel et Isabelle Bourdial.
Voici des extraits de cet article qui traite de la théorie de construction des pyramides à l’aide de pierre calcaire [...]

Walter Sullivan, science editor and writer at the New York Times, was the first English speaking journalist to write that the Egyptian pyramids may have been cast from plastic rock instead of being hewn. I have been attending the International Archaeometry Symposium, held at the Brookhaven National Laboratory, Long Island from May 18 to May [...]