Last week, the RMC Research & Education Foundation released the latest in its extensive collection of tools and resources: the "Guide to Concrete Overlays of Asphalt Parking Lots". Developed by the National Concrete Pavement Technology Center (CP Tech Center) at Iowa State University and with the assistance of a Technical Advisory Committee comprised of some of the most experienced concrete overlay designers and contractors in the country, this new guide will be a great asset in selecting project candidates and will provide information and guidance on assessing the integrity of the existing pavement, pavement design principles and design life, managing parking lot drainage and dealing with entry evaluations of adjacent buildings, among other items. The guide also includes aspects of ACI 330 "Guide for Design and Construction of Concrete Parking Lots".