Xiuping Feng, Ph.D.

Senior Materials Scientist


  • Concrete + Cement-Based Materials


Dr. Feng is involved in both specialized and standard testing of cement, fly ash, slag, metakaolin, CKD, aggregate, mortar, and concrete. She also performs analysis and evaluation of cement and concrete by X-ray Diffraction, investigation of alkali-silica reaction (ASR) and delayed ettringite formation in concrete structures, research on test methods for water-soluble sulfate in soils, and leads the synthesis of pure cement compounds.

Before joining CTLGroup, Dr. Feng served as a researcher at the National Institute of Standards and Technology (NIST) where her work focused on the hydration and microstructure development of blended cement and on concrete transport property issues. She was also a research associate at Purdue University, where she conducted research on use of supplementary cementitious materials in bridge structures. As a research associate at the University of New Brunswick, her research focused on the application of lithium to mitigate alkali silica reaction and was funded by Federal Highway Administration (FHWA).


Ph.D in Civil Engineering, University of New Brunswick, 2007

Ph.D. in Materials Science and Engineering, Nanjing Technology University, 1995

M.S. in Cement Chemistry, Nanjing Technology University, 1988


  • American Ceramic Society
  • American Concrete Institute
  • ASTM International

Featured Publications

Feng, X. and Clark, B. 2014. “Portland-Limestone Blended Cement: Effects of Limestone Characteristics”. Portland Cement Association R&D SN3241.

Feng, X. 2012. “Correlations Between the Lab Test Methods for ASR.” 14th International Conference on Alkali Aggregate Reaction, Austin, Texas. May 22.

Feng, X., and B Clark. 2011. “Evaluation of the Physical and Chemical Properties of Fly Ash Products for Use in Portland Cement Concrete.” 2011 World of Coal Ash Conference, Denver, Colorado. May.

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