Industry News

Concrete Sustainability Hub to Present LCCA Webinar

The Concrete Sustainability Hub at MIT (CSHub@MIT) will present two additional webinars in its continuing series.  Bot webinars are free of charge and open to the public; however, advance registration is required for both.

The next webinar is, “Building Life Cycle Cost Analysis (LCCA), with Hazard Resistance.” Scheduled for Thursday, May 25 at 11 a.m. (EDT), the  webinar,  is free or charge and open to the public.

This webinar presents a building LCCA approach developed by CSHub researchers that combines initial construction costs with several types of operational costs, including costs associated with energy consumption and repairs due to damage from hazards.  Life cycle cost analysis (LCCA) enables engineers, designers, and decision makers to better understand the economic impacts of infrastructure decisions over time, and to identify opportunities that exist to reduce impacts. Advance registration is required: http://tinyurl.com/CSHubwebinarMay25.

The second new webinar will cover, “Pavement Vehicle Interaction (PVI): Design and Maintenance.”  The webinar is scheduled for Thursday, June 29, 11 a.m. (EDT).   Pavement vehicle interaction (PVI) considers the interaction between a vehicle’s tires and the roadway surface on which it is driving. PVI leads to excess fuel consumption and, as a result, smog and greenhouse gas emissions, and impacts drivers, states, and municipalities financially. This webinar will present CSHub research which has led to models that quantify excess fuel consumption due to PVI for pavement segments and pavement networks. Advance registration is required: http://tinyurl.com/cshubPVIwebinar.

Past webinars by the CSHub at MIT are also available online on the CSHub’s YouTube channel.

ACPA Participates in LCA Symposium

The Life Cycle Analysis 2017 (LCA) Symposium was hosted in April at the University of Illinois at Urbana-Champaign to focus on the implementation of LCA for pavements in North America and around the world.  The event followed the FHWA’s Sustainable Pavements Technical Working Group Meeting.

Cosponsored by the Illinois Center for Transportation, the Illinois DOT, and the University of California (Davis/Berkeley) Pavement Research Center, the symposium’s objective was to review the current status of LCA implementation, identify the extent of consensus, and discuss future developments for pavement LCA implementation.

The symposium included poster presentations, papers, and panel discussions by subject matter experts representing universities, industry, and the public sector.  

ACPA’s Leif Wathne and Eric Ferrebee participated in the symposium.  

“This was an great opportunity to see how pavement LCA is gaining wider acceptance,” Ferrebee said, adding, “The symposium also provided a view of the practical, meaningful ways industry, the public sector, and academia are working together to show the importance and value of LCA in highway, airport, and roadway construction.”

Wathne participated in a panel discussion called, “Where Do We Go from Here!” where he emphasized that meaningful advancement in sustainable practices and LCA will only be realized by fully marshaling and leveraging the expertise, know-how and innovative spirit of both paving industries, primarily though competition.

Also on the panel were  Navneet Garg, FAA; Gina Ahlstrom, FHWA; Steve Gillen, Illinois Toll Highway Authority; and Richard Willis, NAPA.  The CS Hub at MIT, along with Illinois State University, NRMCA, and ACPA members APTech and ARA, were among the presenters and panelists participating in the event.

This symposium is a follow-up to the 2010 Pavement LCA Workshop, Davis, California; 2012 RILEM Symposium on LCA for Construction Materials, Nantes, France; and 2014 Pavement LCA Symposium, Davis, California.

FHWA Sustainable Pavement Meeting

The 13th meeting of the FHWA Sustainable Pavement Technical Working Group (TWG) met in mid-April in Champaign, Ill. The FHWA Sustainable Pavement Program began in 2010 to advance the knowledge and practice of sustainability related to pavements, and the TWG’s aim is to provide technical input on sustainability specific to pavement systems and pavement materials.

ACPA’s Leif Wathne has been involved with the TWG’s working group since its inception. The group is comprised of agency, industry, and academia, with individual members working together on a number of major initiatives. Wathne noted major initiatives discussed include:
• A Pavement Life Cycle Analysis (LCA) framework, which the group has just completed to better define the issues, implications and practical uses for LCA.
• Sustainable Pavements Roadmap, a plan to assess what the FHWA sustainable pavements program will focus on over the next five years. The TWG discussed the framework, priorities and actions, current status, and steps for moving forward.

The TWG previously produced a major deliverable, a publication called, “Towards Sustainable Pavement Systems. A Reference,” (HIF-15-002), a comprehensive, in-depth resource covering sustainable pavements. Published in 2015, the 458-page publication provides a thorough discussion of all aspects of sustainable pavements, including impacts from all phases of a pavement’s life cycle, including the critically important use-phase.

The next meeting of the group will be in Blacksburg, Va. in October, followed by a spring 2018 meeting in Seattle.

ACPA Participates in AASHTO Committee Meeting

ACPA participated in the AASHTO Joint Technical Committee on Pavements in Seattle on April 25.   ACPA’s Leif Wathne participated in the meeting and reported a number of key outcomes, including:

  • As part of a reorganization at AASHTO, the committee is expected to be merged with the Subcommittee on Materials.   There was some discussion about how to weave the two groups together, and Wathne said he believes the concrete pavement industry will continue to have representation on the new committee.   
  • A presentation on the SHRP2 R-23 program’s “rePave” scoping tool shows promise to  develop guidelines for long-life pavement renewal. An underlying study, the scoping tool, and accompanying resources focus on long life options ranging from 30 to 50 years.  Several states have run the program on existing projects.   Some states report they have had success in using the tool, determining future projects, providing guidance on pavement evaluation, and for training new engineers.
  • An update on Mechanistic-Empirical Pavement Design Guide-related research.  One of the highlights of the discussion was discussion about moving to a web-based application, as well as a number of enhancements expected in 2018.   Costs of the software are expected to remain the same in 2018, but will increase 5% in 2019.

In addition to discussions on these and other topics, Wathne provided an overview of the concrete pavement industry during the meeting.

ACPA Participates in National Concrete Consortium Meeting

ACPA participated in the recent National Concrete Consortium (NC2) Meeting in Salt Lake City.   ACPA President and CEO Jerry Voigt and Technical Engineer, Eric Ferrebee, were among the approximately 175 people gathered for the 2-1/2 day meeting, which culminated with a plant tour.

“This is a great networking opportunity, and one that offers a unique opportunity to meet with Department of Transportation materials engineers and other officials, and to discuss key issues in common,” Voigt said, adding this was the best attended NC2 meeting.  In addition to the estimated 175 participants, 30 states were represented at the meeting.

The meeting celebrated the 20th anniversary of the group, which originally began as the Midwest Concrete Consortium.   The group has expanded to include Departments of Transportation, toll highway authorities, and other groups and individuals with an interest in concrete pavements and bridges for highway and roadway applications.

The meeting began with a look-back at the MC2/NC2 evolution, and continued with a wide range of presentations and discussions on  a wide range of topics, including performance engineered mixtures, pavement testing, durability, load transfer, and other current and emerging technologies issues.

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