journal article
Strength anisotropy in building granites
Fecha
2017Registro en:
Giulia Forestieri, David M. Freire-Lista, Anna Maria De Francesco, Maurizio Pontea & Rafael Fort (2017) Strength anisotropy in building granites, International Journal of Architectural Heritage, 11:8, 1153-1165, DOI: 10.1080/15583058.2017.1354096
1558-3058
10.1080/15583058.2017.1354096
Institución
Resumen
Throughout history, natural stones have been used as building materials in the architectural heritage.
The purpose of this research is to assess the influence of anisotropy on building granites’ behavior.
This article deals with San Giovanni in Fiore granite (Italy). Samples are subjected to several
tests, namely: petrographic analysis; ultrasonic P-waves velocity; uniaxial compressive, flexural and
indirect tensile strength; and point load, with respect to different angles between splitting planes
and loading directions.
Good strength values indicate that this granite is to be considered as adequate as building
material, even though it exhibits an anisotropic behavior. The microcrack systems and their
different orientation along the spatial directions, influence the petrophysical and mechanical
behavior. The highest strength values are registered for the anisotropic XY plane (Z-direction),
for all performed tests. Thus, it can be used in construction whilst considering the anisotropic
directions to improve its strength properties and its resistance to decay processes.