A quarterly publication of the American Shotcrete Association MAGAZINE ShotcreteVolume 12, Number 4 Fall 2010 www.shotcrete.org ENVIRONMENTAL VALUE ADDED SOCIAL VALUE ADDED SHOTCRETE ECONOMIC Sustainable VALUE ADDED Shotcrete REED WET-mix Shotcrete Pumps and DRY-mix "Guncrete" Gunite Machines. On the job since 1957 and still the best in the industry. Circle #22 on reader response form—page 64 Shotcrete is a quarterly publication of the American Shotcrete Volume 12, Number 4 Association. For information about this publication or about Fall 2010 membership in the American Shotcrete Association, please contact ASA Headquarters at: American Shotcrete Association 38800 Country Club Dr. Farmington Hills, MI 48331 Phone: (248) 848-3780 • Fax: (248) 848-3740 Features E-mail:
[email protected] Web site: www.shotcrete.org 9 Sustainability of Shotcrete—An Overview Charles S. Hanskat 14 Sustainability with a Capital “S” Marcus H. von der Hofen 20 Is Shotcrete Sustainable? Lihe (John) Zhang The opinions expressed in Shotcrete are those of the authors and do not necessarily represent the position of the editors or 31 Shotcrete Domes: A Model of Sustainability the American Shotcrete Association. Chris Zweifel Copyright © 2010 Executive Director Chris Darnell Advertising/Circulation Manager Melissa M. McClain Departments Technical Editors Mark Lukkarila and Charles S. Hanskat 2 President’s Message — Patrick Bridger Graphic Design Susan K. Esper, Colleen E. Hunt, 6 Staff Editorial — Chris Darnell Ryan M. Jay, Gail L. Tatum 28 Shotcrete Corner — Ted W. Sofis Editing Carl R. Bischof, Karen Czedik, 35 Nozzleman Knowledge — Oscar Duckworth Kelli R. Slayden, Denise E. Wolber 40 Sustainability Publications Committee Ted W.