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2016SummerShotcreteEMag

Pool & Recreational Shotcrete Corner is to hire a shotcrete contractor who has demonstrated in previous work that their company has the experience, resources, well-trained crew with ACI Certified Nozzlemen, and commitment to quality and safety that shotcrete pools demand. Chris Zynda is a Past President of the American Shotcrete Association, current President of the Shotcrete Concrete Contractors Association, General Manager with JJ Albanese Concrete—Shotcrete Operations, and an ACI-approved Examiner for Shotcrete Nozzleman Certfication. He is a member of ACI Committees 506, Shotcreting, and C660, Shotcrete Nozzleman Certification, and ASTM Committee C09, Concrete and Concrete Aggregates. Zynda is also an approved Underground Examiner with California Transportation Agency. You must have enough air flow to accelerate the shotcrete stream to a high velocity. d. A well-proportioned concrete mixture design. The concrete must be pumpable in wet-mix and, in either process, have adequate materials to achieve the desired strength. 4000 psi (28 MPa) compressive strength at 28 days should be the minimum acceptable. e. Ensure the 30-minute construction joint rule is used. f. Use proper curing procedures as detailed in ACI 506R-16, “Guide to Shotcrete,” Section  3.6. Although the basic concepts for construction of a pool shell with shotcrete may be straightforward, a quality shotcrete contractor must pay attention to all the details needed to make the pool shell functionally watertight and durable to last for decades. The checklists and topics covered previously certainly help to show which aspects of the work should be closely monitored. However, one of the best ways to get the quality desired Get your ASA baseball cap today! Summer’s not over yet! ASA’s new logo adds a sharp look to this new baseball cap, available online now from the ASA Bookstore. www.shotcrete.org/ bookstorenet Shotcrete • Summer 2016 29


2016SummerShotcreteEMag
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