Abstract
In recent years, a new generation of inorganic matrix-based reinforcement systems is under study worldwide known generically as textile-reinforced mortar (TRM). It is considered one of the most innovative and effective techniques for masonry rehabilitation. This paper focuses on a TRM system made of basalt fibers imbedded in an ettringitic mortar. The aim of this study is to identify the effectiveness of this kind of composite in the domain of masonry structures strengthening. The basalt-TRM performance had been investigated through direct tensile tests and single lap shear tests. Two series of direct tensile tests had been carried out on specimens characterized by two different basalt textile reinforcing ratios. The experimental results allowed to evaluate the tensile behavior of the TRM and to obtain useful information on the reinforcement concept. The use of digital image correlation facilitated a detailed description of the displacement fields and the evolution of the cracks during the tests. Two series of single lap shear tests had been carried out on brick masonry walls, reinforced with the same TRM’s systems tested in tension. The experimental results show a good adhesion between the matrix and the masonry substrate as well as between the matrix and the basalt textile.
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More From: European Journal of Environmental and Civil Engineering
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