The Chemical Section is in charge of testing various coatings which include traffic and bridge paint, anti graffiti coatings, and curing compounds. The chemical staff also tests deicing agents, diesel fuels, and glass beads. In conjunction with the Cement & Concrete Section they test concrete additives such as flyash, slag, microsilica, and cement admixtures. For the Aggregate Section the staff tests soil for silicon dioxide and minimum resistivity.