{"id":80023,"date":"2008-07-23T16:10:08","date_gmt":"2008-07-23T14:10:08","guid":{"rendered":"http:\/\/b.bati-journal.com\/la-pierre-histoire-deau\/80023"},"modified":"2008-07-23T16:10:08","modified_gmt":"2008-07-23T14:10:08","slug":"la-pierre-histoire-deau","status":"publish","type":"post","link":"https:\/\/batijournal.com\/index.php\/la-pierre-histoire-deau\/80023\/","title":{"rendered":"La pierre, histoire d’eau"},"content":{"rendered":"

Le 18 juin dernier, la commission Pierre Durabilit\u00e9 du Cefracor et le Syndicat national des industries de roches ornementales et de construction (SNROC) ont organis\u00e9 les 11e Rencontres techniques de la pierre sur le th\u00e8me \u201cEtat et retour d’exp\u00e9rience sur les hydrofuges\u201c. \u201cAppliqu\u00e9s depuis le d\u00e9but des ann\u00e9es 70 sur diff\u00e9rents monuments et sites d’\u00e9tudes, les produits hydrofuges sont encore trop souvent utilis\u00e9s pour rem\u00e9dier \u00e0 toutes les situations o\u00f9 la pr\u00e9sence d’eau ou d’humidit\u00e9 est identifi\u00e9e.\u201c Apr\u00e8s que Jean-Didier Mertz (LRMH) ait d\u00e9fini les objectifs, les fonctions et l’\u00e9valuation des performances des traitements, c’est au tour de Philippe Ponsot, Architecte en chef des Monuments Historiques de t\u00e9moigner, en tant que ma\u00eetre d’oe\u009cuvre sur le chantier de restauration de la fl\u00e8che coll\u00e9giale Saint-Thi\u00e9baud de Thann, de l’utilisation du traitement hydrofuge. Pour lui, c’est un relev\u00e9 pierre \u00e0 pierre qui a nourri le diagnostic d’hydrofugation totale de l’ouvrage en 1999. Seul regret : \u201cQue cette exp\u00e9rience n’ait pas eu de suivi dans le temps.\u201c La vision d’une entreprise avait \u00e9t\u00e9 \u00e9galement requise \u00e0 travers Patrick Palem (Socra) et l’exemple du chantier de restauration de Notre-Dame de la Garde \u00e0 Marseille. Ce dernier a soulign\u00e9 que le choix du produit \u00e9tait important, mais que les conditions d’application l’\u00e9taient au moins autant ; ainsi que la sant\u00e9 des applicateurs. \u201cLes directives europ\u00e9ennes nous am\u00e8nent peu \u00e0 peu vers un produit en phase aqueuse car un certain nombre de solvants vont \u00eatre interdits.\u201c Derni\u00e8re intervenante, Claire Moreau (universit\u00e9 de Reims & LRMH) a, elle, trait\u00e9 du vieillissement naturel des pierres hydrofug\u00e9es. Au final, un apr\u00e8s-midi riche qui a su nourrir le d\u00e9bat et en cr\u00e9er d’autres.<\/p>\n","protected":false},"excerpt":{"rendered":"

Le 18 juin dernier, la commission Pierre Durabilit\u00e9 du Cefracor et le Syndicat national des industries de roches ornementales et de construction (SNROC) ont organis\u00e9 les 11e Rencontres techniques de la pierre sur le th\u00e8me \u201cEtat et retour d’exp\u00e9rience sur les hydrofuges\u201c. \u201cAppliqu\u00e9s depuis le d\u00e9but des ann\u00e9es 70 sur diff\u00e9rents monuments et sites d’\u00e9tudes, […]<\/p>\n","protected":false},"author":1,"featured_media":80024,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[9192],"tags":[],"class_list":["post-80023","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenements"],"yoast_head":"\nLa pierre, histoire d'eau<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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