2014: A Year of Discovery and Innovation at RJ Lee Group

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  • 5:04PM Dec 29, 2014
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2014 was a year that, while demanding, was also challenging and exciting. We adjusted to meet the impact of reduced government spending, the slowing of the global economy, and the overall fiscal uncertainty felt by our customers that eventually reflected in our revenues. Fortunately, we were able to recoup this setback and by the third […]

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Petrography

The Top 10 Things to Tell Your Petrographer

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  • 9:32AM Dec 18, 2014
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If you want solid answers to your concrete questions, a petrographer can help. Petrographers use a combination of visual inspection, microscopy, and chemical techniques to examine concrete cores. These analyses provide a basis for understanding the condition of the material, why it failed, or the material’s remaining service life. If you are submitting concrete cores, […]

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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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Webinar Series: New York State Vermiculite and SOF-V Regulations

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  • 12:19PM Oct 24, 2014
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With several recent changes to the New York State Department of Health’s requirements for vermiculite containing materials, it’s challenging to stay up to speed and in compliance.  Thousands of structures across New York State are affected by these new regulations, in particular, those with spray-on fireproofing containing vermiculite (SOF-V).

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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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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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Game Changing Regulation for Respirable Crystalline Silica? New Industries and New Challenges

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  • 9:23AM Sep 16, 2013
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OSHA has proposed new standards for respirable crystalline silica exposure and a new uniform airborne permissible exposure limit (PEL), calculated as an eight-hour time-weighted average. The agency has identified 25 industry subsectors encompassing approximately 130 industrial and maritime operations in which exposure to respirable crystalline silica is common during operations such as cutting and grinding […]

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