Geotechnical Experts

Greg Halsted
Greg Halsted, P.E.
Manager of Pavements and Geotechnical Support
  • 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 Pavements and Geotechnical Support for PCA. He is responsible for expanding market share for use of portland cement in all paving and geotechnical applications. These cement-specific materials include conventional concrete, roller‐compacted concrete, pervious concrete, cement-modified soils, cement-stabilized subgrade soils, cement‐treated base, full‐depth reclamation, lightweight cellular concrete, flowable fill, deep soil mixing, and waste solidification/stabilization.

Read More >
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. 

Read More >