PSI - Issue 2_A

2840 Z.S. Metaxa et al. / Procedia Structural Integrity 2 (2016) 2833–2840 8 Z.S. Metaxa, E.D. Pasiou, I. Dakanali, I. Stavrakas, D. Triantis, S.K. Kourkoulis / Structural Integrity Procedia 00 (2016) 000–000

bility (mechanical, chemical, physical, aesthetic etc) is the decisive factor before definite conclusions are drawn. On the other hand and irrespectively of the as above aspect of this study, it should be emphasized that the data gathered by the ERC technique are in very satisfactory agreement (both qualitatively and quantitatively) with the respective data gathered by both traditional (strain gauges and clip gauges) and innovative sensing techniques (DIC and AE). Therefore it could be stated that the present study (although at a rather preliminary stage) constitutes a flexible and potentially useful step in the direction of comparatively assessing/calibrating various techniques, in case they are to be applied in the field of rock mechanics and more specifically in the field of restoring stone monuments. References Azhari, F., Banthia, N., 2012. Cement-Based Sensors with Carbon Fibers and Carbon Nanotubes for Piezoresistive Sensing. Cement & Concrete Composites 34, 866–873. 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