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Pierres, mortiers et parements de la tour des Minimes au regard du compte de construction de 1495-1496, des investigations archéologiques et des analyses pétrographiques

Abstract : Charles VIII (1483-1498) construction period in the castle at Amboise took place from 1492 to 1498. In 1495-1496, an account book was written mainly about the well-preserved Tour des Minimes, a tower one could climb up on horseback. A comparative study of the building, along with the account book, cut stones (petrography and statistics), mortars (grain size distribution and lime) and the whitewash jointing, requires a specific methodology and a constant dialogue between architectural historians, geologists, and archaeologists. The research enables to identify the name of the stones and the technical vocabulary used at the end of the middle ages. Moreover, it proves that achief stone dresser probably worked on the tower, and that the building site was likely to have been split into several centresand workshops; and it also reveals the rhythm of work to have been intense, since for the tower only, more than 15m of vaulted masonry had been created. All this have been allowed thanks to workers with an empirical knowledge of materials, the high quality of the chosen materials and the remarkable implementation they did. It resulted in an outstanding genuine edifice in which four revolutions and a half climb around an openwork newel.
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https://halshs.archives-ouvertes.fr/halshs-01777896
Contributor : Lucie Gaugain <>
Submitted on : Friday, June 11, 2021 - 10:41:00 AM
Last modification on : Tuesday, June 15, 2021 - 3:07:45 AM

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Lucie Gaugain, Jean-Gabriel Bréhéret, Jean-Michel Mechling, Daniel Prigent. Pierres, mortiers et parements de la tour des Minimes au regard du compte de construction de 1495-1496, des investigations archéologiques et des analyses pétrographiques. Archeosciences, revue d'Archéométrie, G.M.P.C.A./Presses universitaires de Rennes, 2017, 41 (1), pp.25-43. ⟨10.4000/archeosciences.4868⟩. ⟨halshs-01777896⟩

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