roman
High performance Roman cement and concrete, high durable buildings
The Coliseo, Rome, 2nd C. AD (left) The Pantheon, Rome, 2nd C. AD, inside (center) The Pantheon, Rome, 2nd C. AD, the concrete dome (right). Concrete experts talk today about how to make concrete durable. Many ancient Roman concrete buildings are still in use after more than 2000 years. For these modern concrete experts, the [...]
Geopolymer cement for storage of toxic and radioactive wastes
GEOpolymeric Cements for Innocuous Stabilisation of Toxic EleMents Geosynthesis of Rock-based Geopolymer cements was the objective of the European multidisciplinary BriteEuram industrial research project GEOCISTEM. The project titled cost effective GEOpolymeric Cements for Innocuous Stabilization of Toxic EleMents, in short GEOCISTEM, started on Jan. 1994 and has been completed on June 1997. In J. Davidovits’ [...]
Archaeological Analogues (Roman Cements)
Long-Term Stability of Geopolymeric Materials The task LONGTERM in the GEOCISTEM project dealt with the better understanding of long-term durability. It is difficult to predict extended durability on the basis of operating experience, laboratory experimentation and prototype testing. Two thousand years are generally accepted as a sufficient amount of time to permit decay of fission [...]
#E: Searching for Carbunculus (“A la recherche du Carbunculus”)
A la recherche du Carbunculus (searching for Carbunculus) by Frédéric Davidovits, Université de Caen published in Revue Voces, Vol. 5, pp. 33-46 (1994), ( in French, en Français ) Abstract in English: Carbunculus, as described by Vitruvius (2, 4, 1; 2, 6, 6; 8, 1, 2), is a mineral used like a pouzzolana, which, when [...]
#D: The synthetic pozzolanic mortar by Vitruvius
Les mortiers de pouzzolanes artificielles chez Vitruve: évolution historique et archirtecturale DEA thesis by Frédéric Davidovits, université de Nanterre – Paris X, 1993 ( in French, en Français ) Contrairement à ce que l’on croit généralement, les sables employés dans les mortiers dits hydrauliques chez les romains sont de nature pouzzolaniques car d’origine volcanique. Des [...]
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