Failure Analysis Determines Faulty Workmanship, Not Defective Building Materials, Caused Damage

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Defining the Challenge Upon completion of a high-rise residential structure, cracks and delamination appeared on exterior surfaces of the tower compelling building owners to initiate a lawsuit against the general contractor. The contractor, in turn, blamed faulty materials used by subcontractors. With so many subcontractors involved in this large construction project, it seemed an almost […]

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Concrete Failure Analysis Reveals Multiple Causes

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Concrete Failure Analysis Reveals Multiple Causes Swimming pool owners noticed that their concrete pool, which had been repaired two years earlier, was once again leaking and cracks were reappearing. Findings of the original investigation concluded that a chemical reaction was responsible for the leaks and cracks but that the reaction had mitigated when the pool […]

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Product Failure Analysis: Consumer Product Affected by Inappropriate Raw Material

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Soon after roofing shingles were installed, the shingle manufacturer received complaints from numerous homeowners who observed rust-colored staining discharging from the shingles. The manufacturer replaced the shingles and began an investigation into the cause of the discoloration. Their in-house testing using an industry-standard method revealed the presence of corrosion-susceptible particles that were thought to be […]

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Failure Analysis Investigation Points to QC Solution to Maintain Profits and Customers

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Client Challenge Shatter-prone glass syringes pose any number of risks — to patients and health care workers — and costly, potentially dangerous waste. One well-known medical device manufacturer wanted reliable data on why syringes from an overseas manufacturer would shatter upon loading. RJ Lee Group Approach Our team examined failed and unused syringes, and reconstructed […]

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Dr. Crystal Densmore Joins RJ Lee Group, Will Work in Materials Characterization and Failure Analysis

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  • 11:40AM Jan 10, 2013
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RJ Lee Group, Inc. materials characterization laboratory and industrial forensics consulting firm is pleased to welcome Dr. Crystal Densmore to its Technical Consulting group.  Dr. Densmore specializes in the areas of coatings, polymers, foams, and composites, and she has a decade of experience working on materials science projects related to national security and defense.  At […]

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Floor Failure Analysis Reiterates the Need to Consider a Variety of Factors

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  • 2:14PM Oct 14, 2012
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Alkali-silica reaction (ASR) is often the cause of debonding and blistering of epoxy coatings; however, the presence of ASR gel doesn’t necessarily mean that it is responsible for any degradation. Near-surface alkali reaction (NSAR) gel has been reported to have much the same effects. Like ASR, it appears as blistering in the low permeability surface […]

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