Geotechnical Experts

Greg Halsted, P.E.
Manager, Pavements & Geotechnical Markets
  • Full-Depth Reclamation
  • Lightweight Cellular Concrete
  • Cement-Modified and -Stabilized Soils
  • Roller-Compacted Concrete Pavements
  • Cement-Treated Bases and Subbases
Greg Halsted, P.E., is the Manager of Pavement and Geotechnical Markets for PCA.  He is responsible for expanding market share for use of portland cement in all paving and engineered cement applications including conventional concrete, roller‐compacted concrete, pervious concrete, cement-modified soils, cement‐treated base, full‐depth reclamation, slurry trenches, flowable fill, deep soil mixing, and waste solidification/stabilization.

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Gilman Expert Tile
Joshua Gilman, P.E.
Manager, Water Resources & Geotechnical Markets
  • Roller-Compacted Concrete
  • Soil-Cement
  • Controlled Low-Strength Material
  • Slurry Cutoff Wall
  • Grouting
Joshua Gilman, P.E., is the manager of water resources and geotechnical markets for PCA. He is responsible for market development and expanding the use of concrete and other cement-based materials for water resources and geotechnical applications including roller-compacted concrete, soil-cement and waste stabilization. 

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