Proposal of procedure for identification of Menétrey–Willam (M-W-3) plasticity surface of homogeneous and hollow masonry units

Abstract

The article presents the author’s proposal to determine the parameters of the Mentérey–Willam (M-W-3) plasticity surface of the homogeneous masonry elements made of autoclaved aerated concrete (AAC) and vertically hollow calcium-silicate (Ca-Si) masonry units. The uniaxial and triaxial tests of AAC samples in a standard Hoek’s cell was performed while the hollow units made of silicate were tested on a custom-made test stand. By performing statistical analyses, the shape of the meridians of the surface was determined, and then the eccentricity e of the elliptical function was identified.

Keywords

• Menétrey–Willam plasticity surface
• uniaxial test
• triaxial test
• AAC masonry unit
• hollow silicate masonry units