CoatingsPro Magazine

NOV 2015

CoatingsPro offers an in-depth look at coatings based on case studies, successful business operation, new products, industry news, and the safe and profitable use of coatings and equipment.

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Page 49 of 83

The materials needed to be resist concentrations of hexavalent chromium, a pH of 14, direct sunlight, and hot and cold weather. The crew, though, worked to avoid the elements by using containment and heaters. To help contain the process o f d e c o n t a m i n at i n g s o i l , a secondary containment needed to be created. Cue the crew from High Performance Systems and a two-part high-performance coatings system. Feature 50 NOVEMBER 2015 COATINGSPROMAG.COM BY STEPHANIE MARIE CHIZIK PHOTOS COURTESY HIGH PERFORMANCE SYSTEMS Port of Call for Chemical Containment P repare the concrete, and pour the coating. Two days and done! It sounds like it should be a straightforward process, and to some degree it was, but for coatings contractor High Performance Systems and their environmental client, there were a few detours along the way that turned what could have been a two-day project into a four-day one. Te project, completed for client Maryland Environmental Service, was to hold contaminated soil until it could be decontam- inated. Te concrete was essentially made up of two garage bases sitting side by side, according to Stephen Smedley, vice president of High Performance Systems. "So the reason for us to go in there was to make sure that whatever the contaminated soil was would hold the chemical and not leach into the slab itself," Smedley explained. Te dual containments each had retaining walls on three sides and totaled 1,500 square feet (139.4 m²) — 1,000 square feet (92.9 m²) of horizontal space on the ground and 500 square feet (46.5 m²) of vertical space on the walls. It might be consid- ered a relatively small job in size, but even a modest job can be challenging and sophisticated! The Heat Is On Te six-person High Performance Systems crew consisted of four mechanics, one foreman, and one director of operations. Te materials were chosen specifcally for the hexavalent chromium-laden soil to be held here. Tat meant that the primary containment (aka the concrete) and the secondary containment (aka the coatings) had to help keep a barrier between the introduced contaminants and the concrete substrate. After all, the jobsite was at a marine terminal, so not only was there land but also water to protect. Tis terminal in particular, the Dundalk Marine Terminal, covers 570 acres (230.8 ha) and contains over eight miles (12.9 km) of rail and 13 berths for ships; the two together allow the port to move freight from ship to rail, according to the client's website. It's a big port and important to have the secondary containment done right. SECONDARY CONTAINMENT EPOXY CONCRETE

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