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NAPA Webinars

LCCA End of Life

Speaker: Jim Musselman, Senior Engineer, National Center for Asphalt Technology (NCAT)
 
Date: October 1, 2020 2:00 PM Eastern Time (US and Canada)
 
Description:A Life Cycle Cost Analysis (LCCA) is a technique used by many state highway agencies to evaluate the overall expected costs of competing pavement alternatives, primarily between asphalt and concrete design. LCCAs consider initial construction costs, along with future anticipated costs such as maintenance and rehabilitation costs, as well as user costs. But what happens at the end of a pavement’s life, and how should that be properly accounted for in an LCCA?
This webinar will focus on the best methods of addressing pavement end of life issues when conducting a LCCA, ranging from making certain that the remaining service life of a pavement is properly addressed, to understanding the importance of considering what actually happens to a pavement when it reaches its terminal serviceability, and how that needs to be included in an LCCA.
 
Attendees will:
  1. Learn the difference between residual value of a pavement versus its remaining service life value
  2. Understand how to determine the remaining service life value of a pavement and the importance of applying that concept to all pavement layers
  3. Understand the importance of assuring that the LCCA analysis period be long enough to make sure that one of the pavement alternatives reaches its terminal serviceability, and that the cost of the remediation be accounted for as a future cost during the analysis A Life Cycle Cost Analysis (LCCA) is a technique used by many state highway agencies to evaluate the overall expected costs of competing pavement alternatives, primarily between asphalt and concrete design. LCCAs consider initial construction costs, along with future anticipated costs such as maintenance and rehabilitation costs, as well as user costs. But what happens at the end of a pavement’s life, and how should that be properly accounted for in an LCCA?

This webinar is RCEP approved.

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Recycled Asphalt Pavement (RAP) Part 2: Mix Design and Laboratory Performance Testing

Speaker: Scott Quire, Technical Director, Bluegrass Testing Laboratory, Inc.

Date: October 7, 2020 3:00 PM Eastern Time (US and Canada)

Description: Asphalt mixtures containing RAP, when designed utilizing proper design principles and produced in consideration of production constraints have demonstrated excellent performance. This part of the webinar will focus on mix designs utilizing RAP, the level of mix design analysis needed as RAP percentages increase, the production variables to consider as RAP percentages increase and performance testing of asphalt mixes containing RAP.

In this webinar, attendees will:

  1. Review of design considerations as RAP percentages increase
  2. Learn about the approach to mix design methodology for RAP mixtures
  3. Performance testing of asphalt mixtures with RAP
  4. The plant considerations for asphalt mix production at various levels of RAP utilization

This webinar is RCEP approved.

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Asphalt Performance Tests: Specimen Fabrication Practices

Speaker: Dr. Jo E. Sias, Professor of Civil Engineering, University of New Hampshire

Date: October 14, 2020 2:00 PM Eastern Time (US and Canada)

Description: The use of mixture performance tests is becoming more widespread for mixture design and QC/QA processes. There are guidelines for conducting these tests, but they do not all provide uniform or comprehensive direction for fabricating test specimens. This webinar will provide participants with an understanding of variables in specimen fabrication that could impact performance test results, procedures and practices that have been developed for improved consistency in fabricating performance test specimens, and common challenges and knowledge gaps.

This webinar draws on research from the National Cooperative Highway Research Program (NCHRP) Synthesis Report 552: Practices for Fabricating Asphalt Specimens for Performance Testing in Laboratories.

Takeaways:

  1. Identify variables in fabrication processes of asphalt performance test specimens
  2. Learn potential impacts on performance test results and practices for consistent specimen fabrication
  3. Understand knowledge gaps and future research needs in improving specimen fabrication practices for asphalt lab performance tests
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NAPA Member Briefing

Date: October 15, 2020 11:30 AM Eastern Time (US and Canada)

Description:

NAPA OCTOBER MEMBER BRIEFING

How will the next 30 days impact your business? As a member of the National Asphalt Pavement Association (NAPA), you get exclusive access to our monthly member webinars to keep your fingers on the pulse of the political, economic and industry climate impacting your business.

Over the course of 60 minutes we will give you everything we know and potential impacts and ramifications. Attend alone or invite your entire team to attend our Zoom call on Thursday, October 15 at 11:30 EDT.

Reminder, this is for NAPA Members only.

Not a NAPA Member? Click here to join.

MEMBERS ONLY.

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Impact of Pavements on Urban Heat Island: A Critical Review and Gap Analysis

Speakers: Kamil Kaloush, Professor, Ira A. Fulton Schools of Engineering School of Sustainable Engineering and the Built Environment, Arizona State University; Zhihua Wang Assistant Professor at Arizona State University and Chenghao Wang, Postdoctoral Research Fellow at Stanford University
 
Date: October 15, 2020 2:00 PM Eastern Time (US and Canada)
 
Description: The urban heat island (UHI) effect is emerging as a significant concern for cities, motivating urban planners and policy makers across the U.S. to adopt UHI mitigation measures to improve public health outcomes. Innovative pavement design strategies and urban infrastructure are viewed by many as a key countermeasure for heat mitigation. National organizations such as the International Code Council, U.S. Green Building Council, and ASHRAE have developed green construction codes and rating systems that assign credit to different pavement materials based on properties such as reflectivity and permeability. This webinar includes highlights from a critical review of the impact of pavements on UHI mitigation and an online survey that were conducted by Arizona State University. We present an overview of the impact of pavements on the UHI effect and explore some of the modeling techniques for predicting the efficacy of UHI mitigation measures. We also discuss outstanding gaps in research, green rating systems and codes, and implementation of UHI mitigation strategies. 
 
Key takeaways:
  1. Current building codes and green rating systems lag research advances and need to be updated
  2. The status quo implementation of UHI mitigation strategies is largely inadequate in many cities 
  3. Comprehensive approach including life cycle analysis are needed for developing innovative pavement design strategies to mitigate the UHI effect
This webinar is for NAPA members only 
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Methods for Addressing Tack Tracking

Speaker: Jim Musselman, Senior Engineer, National Center for Asphalt Technology (NCAT)

Date: October 22, 2020 2:00 PM Eastern Time (US and Canada)

Description: Tack coats are used to bond pavement layers together, and if the proper materials are used, handled and applied correctly, they will provide an excellent bond between layers, which will lead to good long-term performance of the pavement.

Tracking of tack coat materials occurs when the tack material sticks to the tires of construction vehicles that drive over the tacked surface. This can be a major problem from a performance, safety and aesthetics perspective and continually needs to be addressed. Understanding the causes of tracking is key to identifying the potential solutions.
This webinar will focus on the primary causes of tracking and steps that can be taken on paving projects to minimize or prevent tracking from occurring.

Takeaways:
· Information on the basics of asphalt emulsions, including: the basics of asphalt emulsions; the different types of conventional emulsions currently in use today; and the importance of breaking and curing of emulsions
· Information on reduced-tracking tack coat materials, as well as the use of straight asphalt binders and hot-applied reduced-tracking tack coat materials.
· An understanding of the basic causes of tracking and the best methods of addressing these problems.

This webinar is NAPA Members and SAPA staff only.

Non-NAPA members should reach out to membership@asphaltpavement.org to learn how to join NAPA.

This webinar is RCEP approved.

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Recycled Asphalt Pavement (RAP) Part 3: Field Performance and the User Experience

Speakers: Dr. Randy West, Director, National Center for Asphalt Technology (NCAT), Jim Musselman, Senior Engineer, National Center for Asphalt Technology (NCAT) and Abdul Dahhan, Vice President, Chicago Testing Laboratory, Inc.
 
Date: October 28, 2020 3:00 PM Eastern Time (US and Canada)
 
Description: Asphalt pavements are the most recycled material in the U.S., primarily because asphalt mixes that contain RAP have good performance histories. This part of the webinar will highlight studies on field performance conducted by numerous state DOTs, the Federal Highway Administration, and various pavement research organizations including the National Center for Asphalt Technology. The segment will also highlight the experiences of two pavement engineer veterans who will provide long-term perspectives of using RAP in asphalt mixtures from the Illinois DOT and the Florida DOT. 
 
In this webinar, attendees will learn about:
  1. Documented field performance of asphalt mixtures containing RAP
  2. What applications are best suited for higher RAP content
  3. The impact specification requirements have on usage and performance of RAP 
  4. Agency perspectives on the benefits and concerns with using RAP
This webinar is RCEP approved. 
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Asphalt 101 for Civil and Geotechnical Engineers: Asphalt Production and Construction

Speakers: TJ Young, Production Manager, Duval Asphalt; Steve McReynolds, Director of Operations, Asphalt Testing Solutions & Engineering
 
Date: November 4, 2020 3:00 PM Eastern Time (US and Canada)
 
Description: Civil and geotechnical engineers often specify asphalt for projects and but don’t always get the opportunity to learn about production of the product. This webinar will take attendees behind the scenes using drone video to explore the asphalt production process leading up to delivery on-site. Furthering this educational opportunity, engineers will learn about the construction process by watching asphalt placement and hearing tips to specify and design high-quality jobs presented by experienced asphalt experts.
 
Attendees should expect to learn:
  1. How asphalt is produced
  2. How asphalt is laid
  3. Ways to improve the end product through design considerations 
This webinar is RCEP approved.
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Accelerated Asphalt Road Construction for Engineers and Owners

Speakers: David Newcomb, P.E., Ph.D., Division Head, Materials & Pavements, Texas A&M Transportation Institute and Matt Wilson, Director of Marketing, Communication, and Government Affairs, Barriere Construction Co., L.L.C.
 
Date: November 10, 2020 3:00 PM Eastern Time (US and Canada)
 
Description: Asphalt pavements are quick to construct, but this traditional wisdom has rarely been quantified — until recently. Using a case study, learn how researchers quantify speed of construction with user costs and local business impacts and learn also from a contractor on how asphalt’s speed of construction was a winning component to their bid. Agencies can gain a more holistic view of the total economic impact of a construction project. This analysis helps the agency make an informed decision surrounding the economic and construction costs associated with large pavement projects.
 
What attendees will learn:
  1. Contractors’ strategies for accelerating asphalt road construction.
  2. The importance of accelerated asphalt road construction for the future of the U.S. infrastructure.
  3. How agencies and contractors have worked together to get the most out of time spent in work zones.
This webinar is RCEP approved.
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