1. GeoEngineering Centre at Queen's-RMC, Department of Civil Engineering, Royal Military College of Canada Kingston, Ontario, K7K 7B4, Canada Telephone: (ext. 6479/6347/6391); Telefax: ,
2. GeoEngineering Centre at Queen's-RMC, Royal Military College of Canada Kingston, Ontario, K7K 7B4 Canada; Permanent address: Department of Civil and Environmental Engineering, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka 239-8686, Japan, Telephone: ; Telefax: ;
3. GeoEngineering Centre at Queen's-RMC, Royal Military College of Canada Kingston, Ontario, K7K 7B4, Canada Permanent address: Faculty of Energy, Natural Resources, Management and Economics, Clausthal University of Technology, Erzstrasse 20, 38678 Clausthal-Zellerfeld, Germany, Telephone: ; Telefax: ;
4. Washington State Department of Transportation, State Materials Laboratory Olympia, Washington, 98504-7365, USA Telephone: ; Telefax: ,