A 64-acre parking lot at Denver International Airport
Will Soon Have Largest Concrete Overlay (over asphalt)
In mid-July 2019, concrete paving work began on the Pikes Peak Pay Parking Lot, owned by Denver International Airport (DIA) in Denver, Colorado, USA. The 64-acre project includes a 10-inch thick concrete bus lane, as well as a 5-inch concrete overlay over asphalt for the car parking areas. The project is reportedly the largest concrete parking lot overlay ever constructed in the U.S. The contractor for the project is Member Colorado/Wyoming Chapter of the American Concrete Pavement Association (CO/WY ACPA): Concrete Works of Colorado (CWC)-Marc Lenart, Owner. CO/WY ACPA , the Concrete Pavement Technology Center (CP Tech Center), and National Ready Mixed Concrete Association (NRMCA) staff have worked with DIA Landside Engineering Group and CWC to develop the design and construction specifications for this important project.
Dave Gray, GCC of America; Leonard Velasquez, SLV Quality Concrete; and Don Clem, PE, Vice President, Local Paving-NRMCA provided a training session on concrete parking lot overlays for the Landside Engineering Group – DIA 2 years ago in July 2017. Copies of the CP Tech Center’s “Guide to Concrete Overlays of Asphalt Parking Lots”, funded by the Ready Mixed Concrete (RMC) Research & Education Foundation, were provided to DIA engineers in attendance. Concrete overlays have also been a marketing focus for the ACPA CO/WY Chapter for some time.
In November 2012, the RMC Research & Education Foundation released “Guide for Concrete Overlays of Asphalt Parking Lots” (prepared by CP Tech Center with review and input from a Technical Advisory Committee (TAC) comprised of the most experienced concrete overlay designers and contractors in the country). It is a tool that assists designers with designing concrete overlays for existing asphalt parking lots and will educate contractors on best practices for constructing them. The guide, modeled after another pavement guide developed at the CP Tech Center, includes information and guidance in areas such as:
• Assessing the integrity of the existing pavement
• Selecting project candidates
• Pavement design principles and design life
• Managing parking lot drainage
• Dealing with entry evaluations of adjacent buildings
The guide also incorporates aspects of ACI 330 “Guide for Design and Construction of Concrete Parking Lots”.
Michael Harlan, RMC Foundation Chairman, stated, “[The Guide’s] release is the latest in a variety of tools developed through Foundation support that give industry professionals practical resources that they can utilize immediately.”
Julie Garbing, Foundation Executive Director, offered, “The CP Tech Center at Iowa State has a terrific track record for the development of technical content like this guide so it was a natural partnership to work together on this project.”
The Vision of the RMC Research & Education Foundation is to support research and educational programs that will increase professionalism, quality, and sustainability in the concrete industry. The “Guide for Concrete Overlays of Asphalt Parking Lots” is also featured on a new Foundation “Tools & Resources” deliverables CD released in early 2013. The Guide is available for download from the RMC Research & Education Foundation‘s website and hardcopies are available by request: http://www.rmc-foundation.org/
Please see LINKS below:
Original article—“This Week in the Ready Mixed Concrete Industry” published by the NRMCA: https://www.naylornetwork.com/nrc-nwl/newsletter-v5.asp?issueID=63505 or go to Concrete Construction Online Magazine article: https://www.concreteconstruction.net/projects/infrastructure/largest-concrete-overlay-in-usa_o
“Guide to Concrete Overlays of Asphalt Parking Lots”—initiated by the NRMCA Promotion Committee, funded by the RMC Research & Education Foundation and written by the CP Tech Center: http://www.naylornetwork.com/nrc-nwl/articles/index-v2.asp?aid=202480&issueID=29523
Concrete Construction’s article “RMC RESEARCH & EDUCATION FOUNDATION” article: https://www.concreteconstruction.net/how-to/materials/rmc-research-education-foundation-releases-new-concrete-overlays-guide_o
RMC Research & Education Foundation: www.rmc-foundation.org
VIDEO (YouTube) from NRMCA: “Concrete Overlays of Asphalt Parking Lots”: https://www.youtube.com/watch?v=PYKkt1mNXsk