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Technical Tip and overhead orientation is difficult if you do not Sofis, T., 2008, “Choosing the Right Method,”Shotcrete, have the correct shotcrete nozzle, correct ft3/min V. 10, No. 3, Summer, pp. 28-29. (m3/min), and proper delivery equipment. Many Sofis, T., 2010, “Get Your Nozzlemen Certified,” Shotcrete, V. 12, No. 2, Spring, pp. 30-32. nozzlemen have learned this the hard way on job Yoggy, G., 2000, “History of Shotcrete Part I,”Shotcrete, sites or during ACI Shotcrete Nozzleman Certi- V. 2, No. 4, Fall, pp. 28-29. fication sessions. Shooting a coarser mixture helps Yoggy, G., 2001, “The History of Shotcrete Part II,” keep the reinforcing bars clean when shooting Shotcrete, V. 3, No. 2, Spring, pp. 22-23. through the reinforcing steel. Yoggy, G., 2002, “The History of Shotcrete Part III,” Shotcrete, V. 4, No. 1, Winter, pp. 20-23. References ACI CP-60, 2009, “Craftsman Workbook for Shotcrete Certification,” American Concrete Institute, Farmington Hills, MI, pp. 9-20, 25-26, 31-32, 37-39, 43-47, and 55-60. Raymond C. Schallom III is ACI Committee 506, 1994, “Guide for the Evaluation of Shotcrete (506.4R-94),” American Concrete Institute, Farm- an Underground Shotcrete ington Hills, MI, 12 pp. Application Specialist and Vice ACI Committee 506, 1995, “Specification for Shotcrete President of RCS Consulting (506.2-95),” American Concrete Institute, Farmington Hills, & Construction Co., Inc., Ripley, MI, 8 pp. WV. He has 35 years of exper- ACI Committee 506, 2005, “Guide to Shotcrete (506R-05),” American Concrete Institute, Farmington Hills, MI, 40 pp. ience as a Project Manager, ACI Committee 506, 2008, “Guide to Fiber-Reinforced Owner, and Superintendent. Shotcrete (506.1R-08),” American Concrete Institute, Farm- He is a Past President of ASA; serves as Chair ington Hills, MI, 12 pp. of the ASA Education Committee; and is a ACI Committee 506, 2009, “Guide for Specifying Under- member of the Publications, Underground, and ground Shotcrete (ACI 506.5R-09),” American Concrete Institute, Farmington Hills, MI, 52 pp. Pool & Recreational Shotcrete committees. He American Concrete Institute, 2012, “ACI Certification is also a member of ACI Committees 506, Shot- Policies for Shotcrete Nozzlemen,”Shotcrete, V. 14, No. 1, creting; and C660, Shotcrete Nozzleman Certi- Winter, pp. 41-45. fication. With over 31 years of shotcrete nozzling American Shotcrete Association, 2010, “ACI’s Shotcrete experience in wet- and dry-mix handheld and Nozzlemen Certification Program Arrives in Asia,”Shotcrete, V. 12, No. 1, Winter, pp. 26-27. robotic applications, Schallom is an ACI Certi- Bridger, P., 2005, “The Value of Shotcrete Accessories,” fied Shotcrete Nozzleman in the wet- and dry-mix Shotcrete, V. 7, No. 3, Summer, pp. 10-12. processes, as well as an ASA-approved Shotcrete Bridger, P., 2006, “Wet-Mix Shotcrete Nozzles,” Shotcrete, Underground Educator and an ACI-approved V. 8, No. 1, Winter, p. 32. Shotcrete Examiner. He is also a member of Drakeley, B., 2008, “Need for Nozzleman Certification in Swimming Pool,”Shotcrete, V. 10, No. 1, Winter, pp. 14-16. ASTM International Committee C09, Concrete Duckworth, O., 2011, “Can Nozzleman Skill Affect Bond and Concrete Aggregates, and Subcommittee Quality?”Shotcrete, V. 13, No. 1, Winter, pp. 30-33. C09.46, Shotcrete. Dufour, J-F., 2003, “ACI Shotcrete Nozzleman Certifica- tion and the American Shotcrete Association,”Shotcrete, V. 5, Marc Jolin is a Full Professor No. 4, Fall, pp. 28-30. Dufour, J-F., 2008, “Shotcrete Nozzlemen: ASA Trains— in the Department of Civil and ACI Certifies,”Shotcrete, V. 10, No. 1, Winter, pp. 8-12. Water Engineering at Laval Gagnon, F., and Jolin M., 2007, “Dynamic Force during University, Québec City, QC, Shotcrete Operations,” Shotcrete, V. 9, No. 3, Summer, Canada. He received his PhD pp. 26-28. from the University of British Isaak, M., 2002, “Certification vs Qualification of Shotcrete Nozzlemen,”Shotcrete, V. 4, No. 4, Fall, pp. 40-42. Columbia, Vancouver, BC, Jamieson, D., 2004, “Matching Equipment to Process: The Canada, in 1999. An active Predampener,”Shotcrete, V. 6, No. 3, Summer, pp. 26. member of the Centre de recherche sur les infra- Jolin, M., and Beaupre, D., 2003, “Understanding Wet-Mix structures en béton (CRIB), he is currently Shotcrete: Mix Design, Specifications, and Placement,” involved in projects on service life, reinforcement Shotcrete, V. 5, No. 3, Summer, pp. 6-12. Schallom, R., and Ballou, M., 2003, “What You Need to encasement quality, new admixtures, and rhe- Know About Wet-Mix Shotcrete,” Shotcrete, V. 5, No. 1, ology of fresh shotcrete. Jolin is an ASA member Winter, pp. 22-27. and a Fellow of ACI. He is an ACI Examiner for Schallom, R., 2006, “Correct Shotcrete Nozzling Tech- Shotcrete Nozzleman Certification (wet- and dry- nique,”Shotcrete, V. 8, No. 3, Summer, pp. 56-58. mix processes); Chair of ACI Committee C660, Schallom, R., 2009, “What You Need to Know Before Selecting a Wet-Mix Shotcrete Pump,”Shotcrete, V. 11, No. 3, Shotcrete Nozzleman Certification; and Secre- Summer, pp. 6-8. tary of ACI Committee 506, Shotcreting. 20 Shotcrete • Summer 2013


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