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A program to provide shotcrete contractor qualification is the next step in assuring that the shotcrete industry remains credible and has integ- rity in the years to come. Nozzleman certification is one part of the equation. An even more important variable is shotcrete contractor qualification. For example, if a certified nozzleman completes a project today and it fails a year from now, who is going to be held responsible for the failure? The contractor. The contractor will have to return to the site and remedy the problem with or without the certified nozzleman who completed the project. This is why shotcrete contractor qualification is as, if not more, important than nozzleman quali- fication; it takes an entire team to have a successful project, not just a nozzleman with credentials. An increase in funding allocated for the reha- bilitation and repair of the country’s infrastructure Fig. 1: A typical preconstruction test panel with congested reinforcement has resulted in an increased number of fly-by- night shotcrete contractors. While competition is healthy and encouraged, these fledgling contrac- tors with no shotcrete experience should not be allowed to simply hire a certified nozzleman and have equal bidding capability with a well-estab- lished, experienced contractor who has success- fully completed similar projects over the past several years. There is a difference between the two contrac- tors. A qualified contractor not only has certified nozzlemen but also has the equipment, crew, management, bonding capacity, and references, which set him or her apart from the contractor with a pump and a certified nozzleman. It is important to make this distinction to private and public owners in the project specifications to avoid confusion regarding the class of contractor bidding on their project (refer to Fig. 2). The vision statement of ASA in 1998: To have the shotcrete process understood and used in every beneficial application. Fig. 2: Properly placed shotcrete is a team The ASA Mission Statement: effort: the pump, mixer, and nozzlemen are To encourage and promote the safe and pictured here beneficial use of the shotcrete method. As a charter member of ASA, I believe it is our duty to follow these statements, and who better Marcus H. von der Hofen, Vice to help the specifiers, owners, and municipalities President of Coastal Gunite than ASA with a Shotcrete Contractor Qualifica- Construction, has nearly two tion program—a program that is maintained and decades of experience in the can adapt as required to meet the needs of our shotcrete industry as both a mission. Our educational goal is not to create or Project and Area Manager. He train new contractors/nozzlemen but to encourage is an active member of Amer- the safe and proper use of this unique method of ican Concrete Institute (ACI) concrete placement. Encouraging shotcrete use Committees 506, Shotcreting, and C660, Shotcrete by providing a qualification standard will help Nozzleman Certification. He is a charter member meet this goal. This will not be an easy task, but of ASA, joining in 1998, and currently serves as it is one that has to be undertaken. Secretary to the ASA Executive Committee. Shotcrete • Summer 2013 35


2013SumShotcreteEMag
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