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Canada's oil sands are the third largest deposit of crude oil in the world, and consist of a mixture of sand, water, and bitumen. Due to an aggressive operating environment that includes abrasive sands and corrosive chemicals, oil sands equipment and process piping often experience severe wear and erosion-corrosion, which can lead to the risk of equipment failures, plant downtime or, even worse, environmental leaks [1]. For more than half a century, oil sands producers have collaborated with materials suppliers, equipment fabricators, and technology providers to develop wear technologies to reduce downtime and improve operational reliability.
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Third-party paint inspection contracts provided an immediate, tangible benefit in supplying a qualified, certified coating inspector full-time to a painting project. Inspectors could be rapidly deployed and provided someone to the project with broad experience in painting projects; however, simply providing a third-party contract paint inspector to a project did not always ensure the project was completed properly.
This presentation - looks at the - process behind proposals, submittal practices, evaluation and value proposition of alternative protective coatings systems to conventional specified systems. Currently, there are many new coatings solutions and technologies that offer savings in time and dollars over older, though proven, technologies.
A five-year coatings research project was initiated by the Pennsylvania Department of Transportation in 1986 to evaluate the performance of an organic zinc rich coating system. The coating system consisted of a moisture cured urethane zinc rich primer, an epoxy intermediate, and an aliphatic polyester urethane finish coat. The system was applied to the Windgap Bridge located in McKees Rocks, Pennsylvania (near the City of Pittsburgh) in 1986 and 1987.
Extreme temperatures, rain, and freeze thaw cycles can all attack structures causing corrosion and therefore high maintenance costs. The UK DOT ensures maintenance is kept to a minimum by protecting its bridge stock using an effective waterproof coating which meets the exacting standards specified in BD47. A number of polyurethane based waterproofing systems have now met this standard. The inherent properties, ease of installation and long-term protection offered by polyurethane systems make them extremely popular amongst client authorities across the world.
The combination of an anionic primer layer with a cationic topcoat consist an ion barrier provides corrosion protection without using conventional anticorrosion pigments. The primer inhibits the anodic dissolution of the metals, and the topcoat rejects the aggressive anions from the environment entering the coating-metal interface.
Customers equate a good, strong image with professionalism. The recent trend to improve one’s appearance forms a backdrop for ways to improve how you, your staff and your business are viewed by your customers, the community and your competition.
In 1998, 10,000 square feet of epoxy, decorative quartz flooring was specified for a vivarium at a major University on the West Coast. This installation was performed by the material manufacturer’s certified contractor and was completed in November 2000. A few weeks after installation bubbles and blisters appeared. When the blisters were punctured they contained liquid. As anticipated, the moisture vapor emissions were confirmed to be 4 to 9 lbs in excess of the manufacturer’s recommended maximum of 3 lbs
Oil field operating company’s (1) flowline network in North and West Kuwait (NWK) has over 3000 wells connected through 6” carbon steel pipelines flowing from wellhead to the nearest Gathering Center (GC). Untreated wet crude is transported through the flowlines to GC’s directly or passing through the Remote Headers and Manifold (RHM) to GCs. In RHM, mixing of the wet crude takes place before it is sent to GC’s via transfer lines for further separation. The flowlines are laid aboveground except at road crossings where they are buried.
Caustic corrosion is sometimes referred to as “caustic attack or “caustic gouging.” Corrosion of this type may result from internally fouled heat transfer surfaces and the presence of sodium hydroxide in the boiler water; and concentrated solutions of alkali where the normal washing of the tube metal ID is restricted after Departure from Nucleate Boiling (DNB), i.e., when the steam bubble release exceeds the rinsing rate.
Here’s a practical reminder about regulations and practices for protecting painters from falls.
On November 4, 1993, OSHA’s Lead in Construction Standard became the law of the land. Initially, (and to some extent today) the small residential contractor community reacted with complete outrage due to marketability fears, many claiming that they would simply stop working on “old houses.” Industrial contractors along with the larger residential and commercial contractors often at first ignored or complied in a lackadaisical manner with these laws, continuing to work “as it’s always been done.”