1. U.S. Army Engineer Research & Development Center, Geotechnical and Structures Laboratory CEERD‐GS‐S Bldg 3396, 3909 Halls Ferry Rd. Vicksburg MS 39180 USA
2. U.S. Army Engineer Research & Development Center Geotechnical and Structures Laboratory 3909 Halls Ferry Road Vicksburg MS 39180 USA