Parameter estimation for nonlinear analysis of multi-perforated concrete masonry walls

The mechanical properties of masonry and bed joints were investigated. The masonry was constructed using multi-perforated concrete units, and the bed joints consisted of two types of mortar, in situ elaborated (type M) and industrialized pre-mixed mortar. An experimental program was conducted that included tests of tension, shear and compression. For the masonry, the results included elastic modulus and compressive strength. For the bed joints the results included: strength in tension, tangent and normal stiffness, mode I and mode II fracture energies, dilatancy angle and the shear Mohr-Coulomb parameters, cohesion and the initial and residual friction coefficients. Details of the tests and comments on the results are provided.