Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/DE96FD32-C5EC-497E-80B2-0B1EA4B61378 | - |
| Αναγνωριστικό | https://doi.org/10.1016/j.cemconres.2006.11.007 | - |
| Γλώσσα | en | - |
| Μέγεθος | 8 pages | en |
| Τίτλος | Hydraulic lime mortars with siloxane for waterproofing historic masonry | en |
| Δημιουργός | Maravelaki Pagona | en |
| Δημιουργός | Μαραβελακη Παγωνα | el |
| Εκδότης | Elsevier | en |
| Περίληψη | Mortars with different content of hydraulic lime and aggregates of a siliceous and carbonaceous nature differing in grain size, were designed for waterproofing historic masonry. The repair mortars design was taken into consideration the physico-chemical properties of the original ones. The water repellency of the designed mortars was enhanced through impregnation with an oligomeric organo-siloxane provided optimum water vapour permeability; this is due to the siloxane coating the capillaries without blocking the pores, as indicated from the slightly modified pore size distribution. The grain size of aggregates and the binder content influence the performance of mortars. Mortars with coarse aggregates develop high mechanical strength; nevertheless, micropores interconnected with macropores are responsible for the low salt-decay resistance. Increase of the binding content enhances the mechanical resistance but decreases the resistance to sulphate solutions, as a consequence of the small capillaries not allowing for salt crystallization. The mortar with the best performance consists of medium aggregates and a binder to aggregate ratio equal to 0.33; pores around 0.2 μm of radius enable salts to crystallize without provoking damage from crystallization pressure. The selected mortar, after fourteen months of application to the masonry, shows neither microcracks nor efflorescence formation. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2015-11-02 | - |
| Ημερομηνία Δημοσίευσης | 2006 | - |
| Θεματική Κατηγορία | historic masonry | en |
| Βιβλιογραφική Αναφορά | P. Maravelaki-Kalaitzaki, “Hydraulic lime-mortars with siloxane for waterproofing historic masonry," Cem. Con. Resea., vol. 37, no. 2, pp. 283-290, Feb. 2007. doi:10.1016/j.cemconres.2006.11.007 | en |
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