PREP Research Associate - Durability Assessment of Polymeric Materials Used in Civil Infrastructure Applications

This position is part of the National Institute of Standards (NIST) Professional Research Experience (PREP) program. NIST recognizes that its research staff may wish to collaborate with researchers at academic institutions on specific projects of mutual interest and thus requires that such institutions be the recipients of a PREP award. The PREP program requires staff from a wide range of backgrounds to work on scientific research in many areas. Employees in this position will perform technical work that underpins the scientific research of the collaboration.

Research Title:

Postdoctoral Researcher on Civil Infrastructure Polymer Durability

The work will entail:

The PREP Researcher will conduct laboratory accelerating weathering exposure experiments on various polymer systems used in infrastructure applications, which will include building envelope materials, protective coatings, crack repair materials, and fiber reinforced polymer composite (FRP) retrofits. The PREP Researcher will help to identify select polymeric infrastructure materials in widespread use based on current limitations of these materials, identified research gaps, and identified durability issues. Accelerated weathering experiments will primarily take place on the state-of-the-art NIST SPHERE (Simulated Photodegradation via High Energy Radiant Exposure) device which allows precise control of temperature and relative humidity while exposing samples to highly uniform ultraviolet (UV) exposure. Other weathering exposure experiments in humidity chambers, a freeze/thaw chamber, a corrosion chamber, commercial UV-weathering devices, or at two outdoor weathering fields may be conducted. The PREP researcher will collect material property change data resulting from degradation and develop test configurations and methods to measure performance changes of an infrastructure material with respect to its given application (e.g., increased water penetration of a building envelope material). Alongside structural engineers, weathering data criteria will be collaboratively incorporated into design equations and structural models.

U.S. Citizen Preferred

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PREP is a 5-year cooperative agreement between NIST laboratories and participating PREP Universities to establish a collaborative research relationship between NIST and U.S. institutions of higher education in the following disciplines including (but may not be limited to) biochemistry, biological sciences, chemistry, computer science, engineering, electronics, materials science, mathematics, nanoscale science, neutron science, physical science, physics, and statistics. This collection of information is needed to facilitate administrative functions of the PREP Program.

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