RT Conference Proceedings T1 Digital image analysis contribution to the evaluation of the mechanical decay of granitic stones affected by fires A1 Gómez Heras, Miguel A1 Figueiredo, Carlos A1 Varas Muriel, María Josefa A1 Maurício, Antonio A1 Álvarez de Buergo, Mónica A1 Aires Barros, Luis A1 Fort, Rafael AB The study of the decay promoted in building stones by fire is important in the context of the conservation and restoration of historic buildings. As opposed to granular stones, which are more sensitive to chemical changes, tough stones present a noticeable mechanical decay after being affected by fires. The direct observation of decay features at a micro-scale could be the key for understanding the decay processes at greater scales, especially in the cases where extensive sampling is not recommendable or even possible. Microscopic techniques allow quantifying fracture system and establishing differences among different types of fractures. Results obtained so far have demonstrated image analysis and processing techniques as a useful tool to help establishing, in a qualitative and quantitative way, the fracture system variations resulting from mechanical stresses induced by fire. YR 2006 FD 2006 LK https://hdl.handle.net/20.500.14352/108908 UL https://hdl.handle.net/20.500.14352/108908 LA eng NO Gómez-Heras1, M. et al. (2006). Thermal Stresses. In: KOURKOULIS, S.K. (eds) Fracture and Failure of Natural Building Stones. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-5077-0_26 DS Docta Complutense RD 11 abr 2025