Unsaturated Shear Strength of Compacted Clayey Soil via Suction-controlled Ring Shear TestingLaureano R. Hoyos, Jairo E. Yepes, Claudia L. Velosa and Anand J. PuppalaE3S Web Conf., 195 (2020) 03024DOI: https://doi.org/10.1051/e3sconf/202019503024