The ideal way to work safely on any jobsite is to identify and locate the existing underground utility lines before beginning any site excavation. In the real world, though, existing site conditions aren't always clear, and as-built drawings may not be accurate or updated to reflect site utility modifications. Using colored flowable fill to backfill utility lines provides excavation crews with a reliable and clear visual warning of potential hazards.
Colored Flowable Fill for Utility Trenches
About the AuthorFrank A. Kozeliski
Frank A. Kozeliski, PE, FACI, an ACI Member for 48 years, is a Consultant and Materials Engineer. He owned Gallup Sand & Gravel, currently Michele’s Ready Mix, before selling in 2007. He has worked with pervious concrete for 20 years. He graduated from New Mexico State University with his BS and MS in civil engineering, and is a registered professional engineer in Alabama, Texas, and New Mexico. Frank is an ACI Fellow and has been active with ACI’s New Mexico Chapter since its inception. He served as Chair of ACI 211, Proportioning Concrete, and is a member of ACI 229 CLSM, ACI 305 Hot Weather, ACI 308 Curing, ACI 330 Concrete parking lots, ACI 555 Recycling, and S801 student projects. In 2016 he developed a technique to make concrete business cards, coasters, and award plaques. You may contact him via email, or visit www.concrete-project.com.