Jeff began his career at CTL | Thompson as a Staff Engineer in 1986. He has over 30 years’ experience with concrete consulting and quality control testing of construction materials including concrete, aggregates, mortar, grout, and masonry units. Specifically, he has experience in concrete mix proportioning for various types of construction including horizontal and vertical applications, and he has performed concrete mix optimization including statistical analyses of concrete mix strength results. 


Jeff has consulted on projects regarding cracked concrete, scaled concrete, concrete exhibiting freeze/thaw damage, concrete damaged by salt hydration distress (sulfates), fire damage, and consolidation issues. In addition, he has experience in the determination of in-place strength using non-destructive methods including rebound hammer, Windsor probe, pulse-velocity, and maturity method.

Jeffrey L. Groom, P.E.

Senior Principal Engineer

Email Jeff:

Location: Denver, Colorado

He also has experience in the testing of aggregates for alkali-aggregate reactivity and has consulted on projects where alkali-aggregate reactivity has been found in hardened concrete.



  • M.S. Civil Engineering, University of Wyoming

  • B.S. Civil Engineering, University of Wyoming

  • Registered Engineer: Colorado, Wyoming, Guam

Industry Associations:

  • American Concrete Institute

  • American Society of Civil Engineers

  • ASTM Committee C9 on Concrete Aggregates


  • Groom, J.L., “Reducing Lateral Loads on Bridge Abutments using Geotextiles”, M.S. Thesis, University of Wyoming, 1985

  • Edgar, T.V., Puckett, J.A., Sherman. W., and Groom, J.L., “Utilizing Geotextiles in Highway Bridge Approach Embankments”, Geotextiles and Geomembranes, 5(1987), 3-16.

  • Basham, K.D., and Groom, J.L., “Can Concrete Fly?”, Concrete Construction, Vol. 33, No. 3, March, 1989, pp. 299-301

  • Suprenant, B.A., and Groom J.L., “Designing Grout Mixes”, Masonry Construction, Vol 4, No. 6, June, 1991, pp. 218-220