Cit:Theodoridou.etal:2014
| Autor | Theodoridou, M. and Kyriakou, L. and Ioannou, I. |
| Jahr | 2014 |
| Titel | Salt crystallization resistance of nano-modified repair lime mortars |
| Bibtex | |
| DOI | 10.5165/hawk-hhg/272 |
| Link | Datei:23 SWBSS-2014 Theodoridou etal.pdf |
| Bemerkungen | In: De Clercq, Hilde (editor): Proceedings of SWBSS 2014. Third International Conference on Salt Weathering of Buildings and Stone Sculptures Royal Institute for Cultural Heritage, Brussels, Belgium, 14-16 October 2045, S. 319-333 |
Eintrag in der Bibliographie
| [Theodoridou.etal:2014] | Theodoridou, M.; Kyriakou, L.; Ioannou, I. (2014): Salt crystallization resistance of nano-modified repair lime mortars. In: Hilde De Clercq (Hrsg.): Proceedings of SWBSS 2014 3rd International Conference on Salt Weathering of Buildings and Stone Sculptures,KIK-IRPA, Royal Institute for Cultural Heritage Brussels 319-333, 10.5165/hawk-hhg/272. |   |
Keywords[Bearbeiten]
lime, mortars, nanosilica, nanotitania, salt crystallization
Abstract[Bearbeiten]
This paper describes the results of the application of nano-binders (SiO2 and TiO2) in repair lime mortars, focusing on the durability of the composites against salt crystallization. A total of 12 new mixtures have been designed, produced and investigated in the laboratory, in an effort to produce durable, environmentally friendly, energy-efficient, sustainable composites, primarily for conservation purposes but also for contemporary applications. The effect of different aggregates and binders on the end-product was also investigated using a combination of physico-mechanical tests and analytical experimental techniques (e.g. MIP, capillary absorption, flexural and compressive strength tests). The results show that the use of nano-binders generally enhances the mechanical properties of lime mortars, without significantly affecting their pore structure. They also suggest that nanosilica enhances the durability of aerial lime mortars, while nanotitania significantly improves the resistance of hydraulic lime mortars subjected to salt weathering by full immersion. Nevertheless, attention should be drawn to the development of a standardized salt crystallization test methodology, which would be more appropriate for relatively weak masonry materials, such as lime mortars.