Use of DIC technique for investigating the behaviour of FRCM materials for strengthening masonry elements

Recently, several tests were performed in a Round Robin Test (RRT) initiative involving several laboratories and concerning tensile and bond tests on different types of FRCM systems applied to masonry elements. The experimental results of the tests performed by two of these laboratories are compared in this paper in order to investigate the effect of set-up on both the global performance and the local bond behaviour of three FRCM systems (glass, basalt, steel). The results allowed also to evidence benefits and weaknesses of using DIC technique for monitoring tests on FRCM systems.