ABSTRACT

Shear tests have been carried out using a servocontrolled apparatus with a shearing box of 200 × 200 mm described in Hoang et al. (2009). The shear tests were realized under constant normal loading (CNL) condition at 1.5, 3 and 5 MPa, and at a shear rate ranging between 5 and 20 µm/s for a complete cycle of maximum displacement of ±7 mm. After each shear test, the lower and the upper surface topography was measured again. Mechanical results of shear tests are presented in Hoang et al. (2010).