1. Ingios Geotechnics Inc., PO Box 1141, Little Elm, TX 75068, USA
2. Department of Civil, Construction and Environmental Engineering, Iowa State University, 351 Town Engineering Building, 813 Bissell Rd., Ames, IA 50011, USA (Corresponding author), e-mail: alex19@iastate.edu, https://orcid.org/0000-0002-1150-5595
3. Department of Civil, Construction and Environmental Engineering, Iowa State University, 2711 South Loop Dr., Suite 4700, Ames, IA 50010, USA