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2017SummerShotcreteEMag

long combination steel I-beam and steel underdeck truss bridge carrying Homeville Road over Lower Bull Run Road, Grant Avenue Extension, and Union Railroad Company tracks in West Mifflin, PA. The project took place from August 2015 to November 2016. Work included the repair of existing reinforced concrete abutments and piers using Quikrete Shotcrete MS with fibers and dry-process shotcrete. Euclid Sentinel anodes were installed in the repair areas. In total, there were 1500 ft3 (42 m3) of repairs. No nonshrink grout encapsulation of the anodes was necessary on In summary, with modern approaches, we can use shotcrete and cathodic protection together. Cathodic protection is a method of corrosion protection that is rapidly gaining popularity. At the same time, the shotcrete method is also experiencing rapid growth in popularity both in new construction and as a concrete repair method. Because of this parallel growth, opportunities to use the two systems together have increased and new, innovative techniques are being developed. Some of these techniques include the installation methods mentioned previously. Additionally, there are manufactured anodes on the market in shapes and sizes more conducive to shotcrete applications. These refined designs help the anode withstand the impact of the material and prevent voids from forming behind the anode. When combined, the end result is a high-quality concrete repair with the added benefit of increased corrosion protection. If you want to use both shotcrete and cathodic protection together, talk to the anode manufacturer as well as the shotcrete supplier. By working with both, you will be able to find the best way to successfully complete your project. Dennis Bittner is the National Sales Manager – Infrastructure for The Quikrete Companies. He has been involved in both wet- and dry-mix process projects in multiple arenas of shotcrete construction, with an emphasis on bridge and tunnel projects for state departments of transportation (DOTs) and the rail industry. In addition to this project. being an ASA member, Bittner sits on the ASA Board of Direction. He can be reached at dbittner@quikrete.com. Erik Bertrand is Vice President of the Heavy/Highway Division for Mosites Construction Company. He obtained his bachelor’s degree in civil engineering from Duke University, Durham, NC, and has over 18 years of experience in heavy highway construction. Over the past 10 years, he has been involved in multiple dry-mix process shotcrete projects including tunnel liner rehabilitations, bridge rehabilitations, soil nailing using shotcrete facing, and retaining wall rehabilitations for multiple Pennsylvania state and local transportation organizations, as well as private enterprises. Bertrand sits on the Board of Directors of the Construction Association of Western Pennsylvania. He can be reached at erikb@mosites.com. Material being cut and finished to match the original shape and profile of the pier 22 Shotcrete | Summer 2017 www.shotcrete.org


2017SummerShotcreteEMag
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