Petrography is an important part of bridge construction

What Can Petrographic Analysis Tell You About the Condition of Concrete Structures?

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  • 3:59PM Dec 09, 2014
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According to a 2013 Report Card for America’s Infrastructure, 1 in 9 bridges in metropolitan areas are structurally deficient. The estimated investment needed to eliminate the backlog of deficient bridges by 2028 is $20.5 billion annually—that’s $8 billion more per year than currently invested. Recently, CBS addressed the topic of crumbling roads and bridges in […]

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Micro/Nano-Scale Investigation Addresses Polystyrene Manufacturing Challenges

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Challenge: A manufacturer was experiencing production issues associated with polystyrene vessels in a life science application. Our challenge was to investigate the problem, which was impacting multiple product lines, to determine the root cause of failure and provide a means of resolution. Material: Polystyrene is critical to biomedical research and science. Its optical clarity and ability […]

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New York State Vermiculite Regulations: Decision Time for Building Owners

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  • 3:50PM Aug 14, 2014
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The New York State Department of Health (NYS DOH) has officially certified method LAB.055.1* for the analysis of spray-on fireproofing that contains vermiculite (SOF-V). RJ Lee Group developed LAB.055.1 and is the only laboratory accredited to perform this test. History: In June 2012, the (NYS DOH) provided guidance that the current methods for analyzing vermiculite-containing […]

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Duplex Stainless Steel Atlas of Microstructures

Uncovering the Mysteries of Duplex Stainless Steels

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  • 1:50PM Jul 26, 2014
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As early as the 1930s, companies were researching the development of duplex grades of steel that were more resistant to cracking and corrosion, but it wasn’t until the 1960s and 1970s when improvement in refining techniques resulted in better product quality, that major progress was made. Since that time, the use of duplex stainless steels […]

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Raw Material Specification Changes Resolve Problem with Cured Silicone

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Silicone elastomers, foams, coatings, and adhesives are widely used in virtually all aspects of manufacturing, in construction, the automotive industry, and medical and personal care products. The properties that contribute to making silicones indispensable in many applications, such as their ability to repel water, their excellent heat stability and chemical resistance, are also responsible for […]

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PVC Pipe Failure Results from Improper Installation

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Polyvinylchloride (PVC) is one of the most widely produced plastics in the world and accounts for approximately 70% of new buried water distribution and sanitary sewer pipes being installed in the U.S. and Canada today. With so much more PVC in use today, there are more situations in which pipes can fail. Whether caused by […]

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Multi-Faceted Support for International Liquefied Natural Gas Production

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RJ Lee Group provides significant technical support to Fortune 500 companies for international liquefied natural gas production, including those involved in energy production. Technical challenges that are already significant become magnified when working across continents, cultures, and environments – e.g., the middle east is particularly harsh from a corrosion standpoint. In this example, RJ Lee […]

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Asbestos Contamination: Examining Take-Home Exposure Risks

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  • 10:00AM May 14, 2014
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Asbestos contamination has been a prominent inhalation hazard in many occupational environments and, as a result, many studies have been undertaken to measure airborne asbestos concentrations associated with the manufacture and use of asbestos-containing products in hundreds of workplace settings. In addition to concerns about the workplace, exposure to asbestos has been reported for individuals […]

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ACR Concrete Controversy Continues – Investigation Indicates that ASR is to Blame

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  • 6:35PM Dec 04, 2013
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Query: Can the main mechanism of concrete distress and cracking in a concrete made with ACR-susceptible aggregates be caused by ASR?? Fact: Alkali Carbonate Reaction (ACR) results when brucite, formed in concrete made with dolomitic (ACR-susceptible) aggregate, crystallizes and expands. Fact: Alkali Silica Reaction (ASR) occurs over time when the alkalis in cement react with […]

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Webinar: Material Challenges in Maintaining Aging Infrastructure – Reinforced Concrete Structures

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  • 12:03PM Nov 20, 2013
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According to the 2013 Report Card published by the American Society of Civil Engineers (ASCE), one in nine bridges in the United States is structurally deficient. Tight budgets require efficiencies when selecting work to be done and so priority is often given to those tasks that will make these structures last as long as possible. […]

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