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This article focuses on protecting workers from exposure to inhalation and noise hazards during surface preparation work in coating operations. For easy reference, a guide to common acronyms and terms appears at the end of this article.
Shot and grit blasting has been around for many years, but are we getting the most from our systems? This paper looks at the various adjustable parameters that can and do affect the productivity (yardage), media usage and effectiveness of a blasting operation. Air flow, pressure and nozzle size all contribute to the efficiency and yardage achievable by a blast pot.
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For a coatings project to become a Successful Coatings Project, the coatings specification should be clear and concise to be useful to the intended audience. The contractor, the owner and any other parties should be able to find and understand key elements such as the scope, surface preparation (including the appropriate standards) and the specified coating or lining system with the approved alternates.
Houston’s water system serves more than 4.5 million people regionally and produces more than 146 billion gallons of treated water every year. The city has more than 300 above-grade water line crossings, some of which have been in service for over 75 years. In 2012, Houston Public Works (HPW) implemented a program to inspect every above-grade water line crossing across the city.