Jean Randolph

Jean Randolph

Senior Petrographer & Group Director
SKOKIE, IL

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Biography

Ms. Randolph has performed thousands of petrographic and microscopical analyses of concrete and concrete materials, including petrographic examination and air-void system analysis of hardened concrete and aggregate, and consulting on field and laboratory testing interpretation. Her examinations assess the quality and condition of concrete, analyze strength and setting issues, freeze-thaw and chemical-related deterioration, as well as debonding and delamination. In addition to her work in materials analysis, Ms. Randolph has experience in expert witness testimony.

Prior to joining CTLGroup, Ms. Randolph was President and Senior Petrographer at Construction Petrographics, Inc., a company she founded in 1989. Her company provided petrographic laboratory testing and consulting of concrete, aggregate, and mix designs services to engineers, contractors, ready-mix and admixture companies, attorneys, and government agencies. Early in her career, Ms. Randolph was a staff petrographer at CTLGroup before starting her own business.

Education

B.S. in Geological Sciences

University of Texas at Austin, 1981

Publications

Randolph, J. 1995. “Microscopic Analysis of Cement/Chemical Admixture Incompatibility: A Case History.” Proceedings of the Seventeenth International Conference on Cement Microscopy. International Cement Microscopy Association. Calgary, Alberta Canada. April 23-27.

Randolph, J. 1991. “Thin Section Identification of Various Admixtures and Their Effects on the Cement Paste Morphology in Hardened Concrete.” Proceedings of the Thirteenth International Conference on Cement Microscopy. International Cement Microscopy Association. Tampa, FL. April 8-11.

Randolph, J. 1988. “Petrographic Identification of a High-Range Water-Reducing Admixture in Hardened Concrete.” Proceedings of the Tenth International Conference on Cement Microscopy. International Cement Microscopy Association. San Antonio, TX. April 11-14.

Affiliations
  • American Concrete Institute, Michigan Chapter
  • The Society of Concrete Petrographers

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