Jean Randolph has been promoted to manager of CTLGroup's Petrography Laboratory. Randolph, a senior petrographer, is an expert concrete petrographer with an accomplished consulting background in field and laboratory testing interpretation. She manages the day-to-day operations and marketing of the Petrography Laboratory and works with the firm's Materials Consulting Practice and Laboratory. With 30 years of experience as a concrete petrographer, Randolph has performed thousands of petrographic and microscopical analyses of concrete and concrete materials, including petrographic examination and air-void analysis of hardened concrete and aggregate and consulting on field and laboratory testing interpretation. She has performed examinations to assess the quality and condition of concrete, analyzed strength and setting issues, freeze-thaw and chemical-related deterioration and debonding and delamination. Before joining CTLGroup, Ms. Randolph was president of Construction Petrographics Inc., a company she founded in 1989, providing petrographic laboratory testing and consulting services of concrete, aggregate and mix designs to engineers, contractors, ready-mix and admixture companies, attorneys, and government agencies. She has a B.S. in geological sciences at the University of Texas at Austin.
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