ATL Senior Geologist Chris Kelson, PhD, PG, gave a presentation at this years’ Geology Days Conference. The conference took place from November 13th to 15th in Saratoga Springs, NY, and consisted of presentations and a panel discussion with members of the State Board for Engineering, Land Surveying, and Geology to answer questions from attendees.

Chris presented “Petrographic Analysis of Concrete.” This presentation describes the utility of petrographic analysis to help determine why concrete fails (ASR, ACR, freeze/thaw, etc.) and basic aspects of concrete including water/cement ratio and hydration of the paste, aggregates, air, and presence of deleterious materials. We’re so proud that our employees are presenting at conferences all over the country. Congratulations Chris!

For more information on the ATL’s seminars, visit