National Concrete Pavement Technology Center (CP Tech Center)

With a history of excellent long-term performance across multiple agencies, concrete overlays have proved themselves to be a viable, simple, sustainable, and cost-effective preservation treatment for existing roadways. Our Winter 2023 Moving Advancements into Practice (MAP) Brief makes the case that concrete overlays should be considered a long-life preservation treatment for aging roadways and provides key technical resources. Get the brief at https://lnkd.in/ghB5wFJ2 and peruse our National Concrete Consortium (NC2) archive at https://lnkd.in/gkFWSVYb. #ConcreteOverlays #ConcretePavements

Interesting session on ‘AI and Infrastructure Concrete’ at last week’s Nevada Infrastructure Concrete Conference. Sarah McGuire, MBA (Giatec), Mathieu Bauchy (Concrete AI), and Nishant Garg (UofI) did a great job highlighting the benefits and limitations of AI as it relates to concrete mixtures and performance. Data volume and data quality were mentioned as significant factors impacting AI’s capabilities. I enjoyed sharing perspectives on 'Improving Pavement Resilience to Flooding'. For a more rigorous dive into resilience and concrete pavements, please review a MAP Brief the National Concrete Pavement Technology Center (CP Tech Center) published last year (authored by Dan King). https://lnkd.in/gAPi-jyE Kudos to Southwest Concrete Pavement Association and California Nevada Cement Association - CNCA for pulling together a terrific program, including a number of impressive Nevada Department of Transportation project spotlights, and a variety of concrete innovations for both pavements and bridges. Having University of Nevada, Reno's concrete canoe on display among the exhibitors was a nice touch!  Scott Pedersen, Thomas Van Dam, Mark Gudenas, Charles Stuart, Tom Tietz #concrete #resilience #concretepaving

We are wrapping up the National Concrete Pavement Technology Center (CP Tech Center) Indiana DOT e-Compaction demonstration this week by mapping the resilient modulus of the AASHTO 53 aggregate base. We had to move quickly to get results ahead of paving! Great work, Karter Ewing, on completing the mapping! The information from this project will allow the geotechnical, construction, and pavement project teams to analyze the aggregate base's resilient modulus compared to the underlying cement-stabilized subgrade resilient modulus. The concrete pavement foundation results will also be compared to similar demonstration projects completed at two other Indiana DOT projects, MnROAD I-94, several Iowa DOT projects, and a Pennsylvania DOT project. #pavementfoundations, #ecompaction, #quality, #resilientpavement, #concretepavement

The CP Tech Center in collaboration with the @Portland Cement Association (PCA) released the Guide to Lightweight Cellular Concrete for Geotechnical Applications to help construction professionals and design engineers make the most of this useful material. “Given that a lightweight cellular concrete mix is highly flowable, it can be efficiently and safely placed in confined or problematic spaces such as in pipes, trenches, tunnels, wall backfills, and other areas where the routine placement of earthen fill is difficult, if not impossible,” said Greg Halsted of the PCA and an author of the guide. Get the guide at https://lnkd.in/gmGcFHkj. 📷 Photo credit: Cell-Crete Corporation

Lots of great discussion this week at the Federal Highway Administration CPM stakeholder feedback meeting in St. Charles, MO. Most of the discussion focused on concrete pavement resources in support of FHWA’s Low-Carbon Transportation Materials (LCTM) program. Twelve State DOTs were represented and presented concrete pavement and materials related elements of their LCTM application, with an eye toward identifying areas of potential collaboration between states. All State DOT representatives indicated an interest in collaborating with other States DOTs. Main areas of collaboration identified included 1) means to manage and store Environmental Product Declarations (EPDs), 2) identifying relevant Global Warming Potential (GWP) thresholds, 3) specification/special provision language, and 4) training and education/technical assistance. An example Implementation Process Report (IPR) covering concrete pavement related activities was also discussed, to help agencies gain some familiarity with what will be required as part of the LCTM grant once announcements are made. A significant amount of time was spent discussing concrete resource needs related to the LCTM program, including a review of existing resources available at ( https://lnkd.in/gm-dUpB2 ).  We learned that due to coordination of different program elements, LCTM grant awards are likely not going to be made until mid-November. Thanks to everyone that participated in this stakeholder exchange. The National Concrete Pavement Technology Center (CP Tech Center) appreciates the opportunity to participate and contribute. #concrete #sustainability #lowcarbon #concretepavement

#TechTuesday Upcoming Webinar: Tuesday, October 15, 2024 @ 11am MT The National Concrete Pavement Technology Center (CP Tech Center) presents their October #Webinar: Advanced Profile Measurements and Pavement Surface Research at ICART. Register today! https://lnkd.in/gBDUWizv #CPTechCenter #TechTuesday #Concrete #ConcretePavement #CountOnConcrete #SustainablePavement

NEW: The CP Tech Center and Federal Highway Administration signed a five-year $6.7 million cooperative agreement on the Development and Deployment of Innovative Technologies for Concrete Pavement in late September 2024. “The Center’s team represents a great cross section of experienced experts and energetic emerging leaders in our industry,” said the CP Tech Center’s Director and ISU Department of Civil, Construction and Environmental Engineering Research Professor Peter Taylor. “We are excited to get started on the work.” https://lnkd.in/g-yw2mQX

The National Concrete Pavement Technology Center (CP Tech Center) has just released an insightful guide that provides commentary on the requirements for #concrete mixtures in AASHTO R 101. This essential resource equips you with valuable tools to prepare concrete #pavement mixture specifications, focusing on critical parameters for long-term pavement performance. Download the guide today! https://ow.ly/9uUf50TrhkV

Limited guidance is available on the design and testing of fiber-reinforced concrete (FRC) for bridge decks and overlays. Nevertheless, multiple states require that bridge decks be constructed with macrofibers to reduce deck cracking. To help agencies navigate the use of FRC, we have developed several resources, including the Residual Strength Estimator spreadsheet tool. Access all of our FRC-related materials at https://lnkd.in/g4vtWWvB. #FiberReinforcement #ConcreteMixtures