Archives

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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Foreign Particulate Matter Investigations

Building a Successful Foreign Particulate Matter (FPM) Program

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  • 9:00AM Dec 15, 2014
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Stories of foreign particulate matter (FPM) found in medication and food products often occur in the news. FPM doesn’t just influence the effectiveness of a product; it can lead to product recall and regulatory action from government entities. Investigating the cause can be expensive, but a carefully designed Quality by Design (QbD) particulate program can […]

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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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Addressing Polystyrene Manufacturing Issues at the Micro/Nano Scale

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  • 1:26PM Dec 01, 2014
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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 […]

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Pan section of an Armored Face Conveyor (AFC).

Corrosion Fatigue in Longwall Mining

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  • 12:48PM May 29, 2014
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What is Corrosion Fatigue? Corrosion fatigue is the combined action of fatigue and corrosion. It can produce a failure in fewer cycles and lower loads than if either corrosion or fatigue were acting alone. Of all corrosion failure mechanisms, it is the most difficult to identify especially in the presence of low-frequency loading. At very […]

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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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Materials Science Bridges the Gap between Catastrophic Event and its Root Cause

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  • 12:58PM Jul 25, 2013
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Notable catastrophic bridge collapses in Minneapolis and Washington State have garnered public attention related to the structural integrity of many of the nation’s bridges. More cause for concern is the 2013 Report Card published by the American Society of Civil Engineers which states that one in nine bridges in the United States is structurally deficient. […]

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Opportunities to Improve Oil and Gas Well Barrier Stewardship

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  • 2:19PM Jul 30, 2012
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The number of widely publicized oil and gas well failures is a reminder of the engineering challenges associated with drilling activities and the importance of safety controls in well operation. These accidents highlight an area of significant engineering and liability concern in a burgeoning industry that is expanding into new geographic locations with local populations […]

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