Tuesday, February 9th
Jim Sattler, AMAP Executive Director
|State of the Association|
Dr. Everett Crews, Ingevity
TRACK: Market Views Around the World
Russia Meets Diverse Highway Requirements with PmB
Chief, Tech Support Team
Every year governments of all countries spend vast amounts of money to keep their highways in roadworthy conditions. On average, a country the size of Russia or the U.S. allocates about 3 billion USD per annum on highway maintenance. That’s a staggering figure. To put it in perspective, this is $256,000 per mile spent every year on road maintenance. The trend on improving durability of the road pavement, as one of the options to minimize these expenses, is getting more and more important globally and particularly in Russia. As the leading SBS producer in Russia and one of the players in a global market, Sibur is committed to expanding PmB’s applications. As a result, we invest a lot in the formulation/R&D for our customers to mitigate significant deviations of the local bitumen from world benchmarks. With this presentation, we want to share Sibur’s experience and ability to reduce the need for road maintenance through fine-tuning customer’s formulations, using both straight-run and oxidized bitumen, and to present a short overview of PmB usage in Russia and Europe.
Eurobitume: Key Initiatives for 2021
Senior Technical Advisor
As an advocate for the European bitumen industry, Eurobitume works at both the European and local national level to promote the efficient, effective, and safe use of refined bitumen in road, industrial, and building applications. This presentation will highlight a few of the key areas concerning Environmental and Technical requirements across Europe, and the activities of Eurobitume to support them in 2021. These include important work on binder collection to acquire key rheological measurements on modified and unmodified binders before and after lab aging, initiatives aimed at better binder specifications in the EU now and in the future, and strategic approaches to improving bitumen sustainability.
ASPHALT BINDER IN SOUTH AFRICA – PRODUCTION, SUPPLY & SPECIFICATION
Dr. Geoff Rowe, C.Eng., P.E.
South Africa has for many years taken a strong leadership position in asphalt technology. In recent years, use of modified binders and new specifications based upon the Superpave standards have been introduced. This presentation will provide details on the structure of the asphalt (bitumen and modified bitumen) industry in South Africa, including refiners, modifiers and specification development. The implementation plan for the Superpave specifications will be explained along with the role of the leading research laboratories, industry groups and developers of the specifications. A list of links and resources will be provided that will enable all listeners of the presentation to obtain a good working knowledge of asphalt binders in South Africa.
Jorge Alarcón Ibarra, Ph.D.
Association of Asphalt Producers Mexico
As in many parts of Latin America and, for that matter, the rest of the world, it is recognized that improved binders and new technologies are needed to increase the durability and sustainability of our asphalt pavement infrastructure. A reliable range of high-performance binders are required, not only to impart the appropriate performance for climate and traffic load, but also to allow higher RAP to meet national initiatives aimed at carbon neutrality. Similarly, new construction technologies are needed, which reduce green-house gas emissions and improve worker safety. This presentation will touch on such areas of strategic change in the Mexican asphalt paving industry.
A LOOK AT MODIFIED SYSTEMS IN THE MIDDLE EAST
Chief Operating Officer
D’Angelo Consulting, LLC
This presentation will review what has been done in several of the major countries in the Middle East. What specs have been used, modifiers used, being evaluated, and where do we go from here. The past few years have seen some pull backs in this part of the world.
UPDATE ON THE GROWING USE OF POLYMER MODIFIED BINDERS IN THE ASIA-PACIFIC
Global Technical Manager
The Asia-Pacific region includes a diverse range of PMB markets. In some countries where PMB has been specified for decades, there is a steady growth in its use. Other markets have seen a recent rapid increase in PMB demand on the back of strong economic growth and the associated increase in heavy vehicle volumes. Yet other countries are gaining the first experiences with PMB. The presentation provides an overview of PMB use across the Asia-Pacific region including examples of specifications, technologies, typical use and growth.
TRANSPORTATION POLICY IN THE U.S.
Alison Premo Black, Ph.D.
Senior VP and Chief Economist
American Road & Transportation Builders Association
Dr. Black manages ARTBA’s economics staff and is responsible for over 100 studies examining national and state transportation funding and investment patterns. She will be discussing the state of our highways and whats ahead under a new administration.
TRACK: U.S.A. Projections & Funding
HIGHWAY FUNDING AGENDA ON CAPITOL HILL AND HOW IT IMPACTS MODIFIED ASPHALT PRODUCERS
Executive VP for Advocacy
National Asphalt Pavement Association
The transportation agenda for the 117th Congress will revolve around the same issues that have persisted in recent years: the need to reauthorize the Federal-aid Highway Program with increased investments in infrastructure paid for with a new, sustainable revenue source for the Highway Trust Fund. On top of that, the 117th Congress and the Biden Administration will be incorporating their ideas in the next highway bill to reduce carbon emissions. This will have major implications for the highway construction industry including the modified asphalt producers. What are challenges and opportunities for the modified asphalt producers and what should the industry watch out for in the pending legislation? Jay Hansen has been leading NAPA’s advocacy efforts since 1998 and will share with attendees his unique asphalt perspective on these issues and what you can do to effect positive change for the industry.
THE BINDER’S VIEWPOINT
Pete Grass, President of the Asphalt Institute and the Asphalt Institute Foundation, will compare year-on-year changes in the U.S. and Canada asphalt markets. He’ll also summarize the latest activities related to the use of plastics in asphalt from a U.S. and international perspective; detail how training asphalt technicians has changed with COVID-19; and how the AI Foundation is working to reach college level engineering students.
WHAT MODIFIED ASPHALT PRODUCERS & DOTS ARE THINKING NOW
CTC & Associates
This is the third year AMAP has commissioned CTC & Associates to conduct a market survey of modified asphalt producers and transportation agencies. Over 150 companies, all state DOTs, and Canadian provinces were invited to participate.
Brian Hirt will present the results on producers’ input on their modified asphalt use in 2020 and 2021 as well as their thoughts on the future of the industry. Did states specify more modified projects? Don’t miss this session to hear the results.
TRACK: Owner/Agencies Experiences
FLORIDA DOTS EXPERIENCE WITH HIGHLY MODIFIED ASPHALT
Howie Moseley, P.E.
State Bituminous Materials Engineer
Florida Department of Transportation
This presentation will highlight Florida’s experience with highly modified asphalt. Some of the presentation focus areas will include specification and design requirements, implementation, best practices and lessons learned, and a case study.
NEW JERSEY’S APPROACH TO MODIFIED BINDERS AND MIX DESIGN
Thomas Bennert, Ph.D.
CAIT-Rutgers Asphalt Pavement Laboratory
Tom will begin by presenting a brief history of the use of the Balanced Mix Design approach for some of NJDOT’s Performance Related Specification (PRS). He will also discuss specification evolution, collaboration between academia, agency and industry in the development of specification that combines performance and volumetric criteria. Tom will also highlight the use of NJDOT’s Bridge Deck Water Proof Wearing Course (BDWSC) for bridge deck overlays and the Bituminous Rich Intermediate Course (BRIC) for composite pavements.
POLYMER MODIFICATION AND BALANCED MIXTURE DESIGN
Sam Cooper, III, Ph.D., P.E.
Materials Research Administrator
Louisiana Department of Transportation and Development
This presentation describes data regarding the impacts of modified asphalt binder on the tests utilized for the Louisiana Department of Transportation and Development balanced mixture design specifications. The presentation focuses on the influence of SBS, SBR and Crumb Rubber on laboratory cracking and rutting indicators, as well as agency concerns.
NEBRASKA’S EXPERIENCE WITH RECYCLING AGENTS
Hamzeh F. Haghshenas, Ph.D.
Research Assistant Professor
University of Nebraska-Lincoln
The aim of this presentation is to introduce Nebraska Recycling Agent Classification System developed based on chemical characteristics of recycling agents, rheological/mechanical/physical properties of asphalt binders modified by these chemical agents. In this presentation, Hamzeh shows the results of low- and mid-temperature cracking resistance as well as moisture damage resistance of the asphalt binders modified with different classes of recycling agents using Bending Beam Rheometer, Dynamic Shear Rheometer, and Wilhelmy plate test, respectively. Also, he will explore the effect of chemical characteristics of recycling agents on performance of asphalt binders. Finally, he will introduce Nebraska Recycling Agent Classification System developed based on the results and findings.
NEW MEXICO’S US-550 20-YEAR WARRANTY PROJECT
Mike will talk about the success story of the “Four Lanes to the Four Corners 20-Year Warranty Project”. Previously, US-550 was a dangerous two-lane highway in the state of New Mexico. Innovative techniques were used to redesign and reconstruct the road utilizing polymer modified asphalt.
Wednesday, February 10, 2021
TRACK: AMAP Modified Asphalt Roofing Symposium
in Cooperation With The Asphalt Roofing Manufacturers Association
Modified asphalt formulations are used extensively in many segments of the roofing industry. AMAP would be remiss if we did not address specific issues of asphalt roofing as well as areas of common ground with the asphalt pavement community. To that end, AMAP has reached out to the Asphalt Roofing Manufacturers Association (ARMA) to create a program specifically directed at technical and marketing issues for roofing.
THE ASPHALT ROOFING PRODUCT LANDSCAPE: LOOKING BACK AT 2020 AND FORWARD TO 2021 AND BEYOND
Executive Vice President
Asphalt Roofing Manufacturers Association
The impact of COVID-19 on the Asphalt Roofing industry – like many other building materials – was a mixed bag. While some segments saw significant declines in installation activity others actually saw increases. Shuttering manufacturing facilities in the early stages of the pandemic led to some pretty significant challenges later in the year, but on the whole 2020 could have been a lot worse from the asphalt roofing manufacturers perspective. Looking ahead, the industry has a lot to be optimistic about!
THE SLIPPERY SLOPE OF ROOFING ASPHALT
Asphalt & Sourcing Alliance
As we watched the price of crude oil plummet in April, amidst the early stages of COVID-19, the refinery community changed dramatically. Due to shutdowns, they had to find ways to lower operating costs which changed the way they would process crude oils. This change would impact the quality of petroleum products. Downstream industries such as asphalt roofing, were significantly impacted not only by the fluctuations in quality of this critical petrochemical feedstock, but also by the number and frequency of other refinery changes that would continue to impact the asphalt industry through 2020. Faced with lifetime warranties on many of their products, the roofing manufacturers moved cautiously as the asphalt quality continued to shift and consistent product performance was becoming a major concern. We will continue research work, seek to manage and reduce asphalt quality risk in the future, examine fundamental changes already occurring within the roofing industry segment, and address opportunities and additional challenges that may still lie ahead.
ROOFING ASPHALT EDUCATION & RESEARCH: ASPHALT INSTITUTE INITIATIVES
Director Research and Lab Services
The Asphalt Institute (AI) has been involved in roofing asphalt education and research for 40 years, going back to key work by Vyt Puzinauskas. More recently, AI’s Roofing Technical Advisory Committee initiatives have led to the development of training for lab technicians and an increased focus on the use of rheological testing tools to characterize the properties of both modified and unmodified roofing asphalt binders. This presentation will discuss those efforts in education and research as it relates to roofing asphalt binders.
ROOFING ASPHALTS: TYPES & TESTS
PRI Asphalt Technologies
The presentation discusses the various asphalt types and compounds used in asphalt roofing products for residential and commercial applications. The derivation, processing, property requirements and the corresponding testing provides an overview of the methodologies used to manufacture products. The technologies used by the roofing industry include: oxidation, blending, compounding of fillers, additives and modifiers. Through the use of these technologies, a wide assortment of additives and modifiers are employed. The testing and evaluations presented include an array of properties that focus on performance and durability. Because products and roofing systems are typically under warranty, the industry values durability as an important property. Testing and evaluations include those considered legacy but still in use and those properties using current protocols.
Sr. Technical Service & Development Scientist
TRACK: Processing Equipment Considerations
PLANT & EQUIPMENT DESIGN AND INSTALLATION CONSIDERATIONS
With the expanding variety of modifiers, recyclables and additives, it continues to be a challenge on “how” to introduce these products into asphalt. We will look at the current methods of introduction including equipment and processes, and discuss considerations for adding modifiers to the process.
HEATING EFFICIENCIES AND PERFORMANCE
Terminal Sales Manager
We will discuss heating efficiencies and performance as it relates to insulation, heater/burner selection and system design. We will cover some guides for choosing the correct thickness and type of insulation corresponding to temperatures. We will also discuss using the correct heater and burner size to prevent your system from wasting fuel. Lastly, we will explain how a correctly designed system of flow rates and heat surface areas will not only make the system more efficient but can also make operations easier.
UNDERSTANDING THE “SIMPLICITY” OF HIGH SHEAR MILLS
BWS Technologie GmbH
High shear mills also called colloid mills or inline homogenizer are a core component in the process industry. They are widely used in food, asphalt and chemical industries. Without these machines the asphalt industry would not be what it is today. I will attempt to provide a better understanding of how high shear mills work and what the essential components of high shear mills are.
Thursday, February 11, 2021
TRACK: Highly Modified Airfields
RESEARCH ON WARM MIX ASPHALT FOR USE ON AIRPORT PAVEMENTS
Navneet Garg, Ph.D.
Federal Aviation Administration,
William J. Hughes Technical Center
Warm mix asphalt (WMA) technologies allow the production and placement of asphalt concrete materials at a lower temperature than the traditional hot mix asphalt (HMA). The existing Federal Aviation Administration (FAA) construction specifications AC 150/5370-10H does not provide guidance on the use of WMA on airport pavements. FAA National Airport Pavement and Materials Research Center (NAPMRC) conducted full-scale accelerated pavement tests (APT) as part of Test Cycle – 1 (TC-1) to study application potential of WMA on airport pavements. TC-1 results showed WMA performance was comparable to P-401 HMA performance in rutting. The objective of the TC-2 study was to research the rutting and fatigue performances of chemical, organic and hybrid additive based warm mixes alongside an FAA specification P-401 HMA. Four different test lanes were constructed at NAPMRC, each encompassing three different test sections. An airport heavy vehicle simulator (HVS-A) was used on the north side of the test lanes. Additionally, pavements were trafficked with 61.3 kips aircraft wheel load at a controlled temperature of 120°F (2 inches below pavement surface). Extensive laboratory characterization effort was also undertaken. Preliminary test results from APT are presented.
AIRPORT APPLICATION: P-404 FUEL-RESISTANT ASPHALT MIX SPECIFICATION
Ron Corun Consulting, LLC
Polymer-Modified Asphalt (PMA) is often applied at airports to improve the performance of Hot Mix Asphalt (HMA) pavements with respect to permanent deformation and cracking. Unfortunately, spillage of jet fuel softens the commonly used PMAs, resulting in a decrease of the integrity of the asphalt. Coal tar sealers, which are known to be carcinogenic, are often applied to prevent the jet fuel damage. The application of these sealers has two drawbacks; the seal coatings crack, which allows fuel to damage the HMA pavement and their use places carcinogenic material onto a pavement that may be recycled.
In laboratory tests jet fuel resistance has been measured by a maximum 1.5% loss
of material from a pavement sample after 24 hours immersion in jet fuel. Standard
unmodified and modified asphalts fail to meet this criteria. Highly polymer-modified
fuel-resistant asphalt exhibits the excellent mechanical properties of a PMA and meets
the jet fuel resistant requirement as defined by the immersion test.
This material was first introduced into the United States in 2002 at La Guardia
Airport and in 2004 at Logan Airport. Performance has been excellent to date. In 2014,
the FAA adopted the P-601 specification for fuel resistant asphalt pavement. In 2018 the
FAA revised the fuel-resistant asphalt specification and changed the number to P-404.
This presentation will discuss laboratory studies as well as field experiences with this
TRACK: Active Research
UPDATE ON ACTIVE RESEARCH ON ASPHALT MATERIALS
JP Planche, Ph.D.
Chief Executive Officer
Western Research Institute
University of Wyoming
Lots of changes are occurring in the industry due to various constraints – recycling for example is taking a big role with the increasing use of RAP, RAS, and now plastic wastes in asphalt mixes. RD, NCHRP projects in particular are leading or trying to keep up depending on the topics, guiding the industry, evaluating the pros and cons. This presentation will make a brief survey of what is happening and may impact our industry in the years to come.
VETTING & SPECIFYING INNOVATIVE TECHNOLOGY
Tanya Nash, P.E.
Pavement Materials Engineer
Asphalt Testing Solutions & Engineering
Technology and innovation are advancing quickly in our industry and new products are developed/introduced all the time. You may have a valuable and innovative product, but without the support of the state DOTs or agencies, how does your product gain traction? This session will identify potential hurdles to anticipate when looking to get your product on the coveted APL list. Learn about vital considerations when introducing new technologies to the industry.
TRACK: AMAP Symposium on Pavement Preservation in Cooperation with FP2
Modifiers play an important role in the formulation of pavement preservation products. To do justice to the topic, AMAP has partnered with the Foundation for Pavement Preservation to convene this panel of experts in the field. After they make their individual presentations, they will form a panel to answer your questions.
Executive Director – Moderator
Foundation for Pavement Preservation (FP2)
A noted expert in the field of pavement preservation, Jim will moderate this session and lead the concluding panel discussion.
PAVEMENT PRESERVATION: WHAT IS IT?
Judith Corley-Lay, Ph.D., P.E.
National Center for Pavement Preservation
Michigan State University
The presentation will focus on key components of preservation: public expectations, network conditions, economics and sustainability. The public expects roads to be maintained (and be smooth and safe) in a cost effective manner. Agencies look at a network of roads rather than an individual road and seek to keep their network in the best condition possible within their budget. The presentation will demonstrate that economics favors keeping roads in good condition because of the high cost of roads when conditions become poor. Finally, pavement preservation treatments use less raw materials and less energy consumption for production of those materials. While not always considered explicitly now, sustainability will become a common consideration in the future.
PAVEMENT MANAGEMENT SYSTEM AND PAVEMENT PRESERVATION
Pavement Management Chief
New Hampshire Department of Transportation
Agencies invest a lot of effort annually in collecting data to support reporting pavement conditions at the State and Federal levels and to support their Pavement Management Systems (PMS). This presentation will focus on the different types of collected data, what methods and equipment are used to collect the data, data reporting, and what data is needed to successfully integrate pavement preservation activities into the PMS.
CHOOSING THE RIGHT PRESERVATION TREATMENT FOR THE ROAD
Vice President & Chief Engineer
Applied Pavement Technology
Pavement preservation is often characterized as putting the right treatment on the right pavement at the right time. Getting all of this right requires an understanding of the different types of treatments used in pavement preservation, and specifically what benefits these treatments are capable of providing. It also requires an understanding of the pavement’s condition, how it got that way, and how it might reasonably be expected to perform in the future. This presentation focuses on the information needed to make the right decisions regarding pavement preservation.
FLEXIBLE PAVEMENT PRESERVATION TREATMENTS
Manager Southern Contracting Division
Vance Brothers and President of FP2 Inc.
This presentation will focus on flexible pavement preservation treatments that are commonly used to extend the life and improve the condition of existing pavements. It will highlight the pavement conditions that are best suited for each of the treatments and further discuss the ability to combine treatments to address higher levels of distress than what each individual treatment can address in a standalone situation. A summary of the keys to successful use of preservation treatments will highlight steps that can be taken to ensure project success.
TRACK: Additive Technologies
IMPLEMENTATION OF BIO-BASED TECHNOLOGY IN MANUFACTURING AND RECYCLING OF ROOFING ASPHALT
Hassan Tabatabaee, Ph.D.
Global Technical Manager – Asphalt Systems
Advances in bio-based performance chemicals have led to increased penetration in various aspects of construction and infrastructure materials. This presentation reviews the current state-of-the-art and state-of-the-practice on the use of bio-based chemicals in roofing asphalt applications including bio-based additives used to modify properties during the manufacturing of new roofing asphalt coatings, as well as enabling high-performance recycling of recycled asphalt shingles (RAS) in pavement applications.
POLYMER MODIFIED ASPHALT EMULSIONS
Technical Support Pavement Preservation
Presentation on polymer types used in asphalt emulsion modification and the performance properties produced.
POLYPHOSPHORIC ACID BINDER MODIFICATION
Technical Service & Development
There continues to be misconceptions around the use of polyphosphoric acid (PPA) in asphalt binder modification. Kevin will demonstrate the chemistry of PPA, clarify the performance characteristics, and explain how it can be used effectively as a standalone additive or with various co-modifiers. He will discuss the modification mechanism, limitations, and binder properties. Additionally, Kevin will share best practices and benefits of PPA usage.
EXPERIMENTAL INVESTIGATION OF GRAPHITE NANOPLATELET MODIFIED ASPHALT BINDERS
Mihai O. Marasteanu
MSES/Miles Kersten Professor
Department of Civil, Environmental and Geo-Engineering
University of Minnesota
A summary of experimental investigations of the properties of asphalt binders and mixtures modified with graphite nanoplatelets (GNP) will be presented. The experimental results indicate that the addition of GNPs leads to considerable improvements in low-temperature strength and fracture properties of asphalt binders and mixtures. Laboratory compaction experiments show that the number of gyrations required for achieving a target density can be significantly reduced by adding a small percentage of GNP in asphalt binders, which could help producing asphalt mixtures that meet the new Superpave 5 mix design requirements.
HIGH PERFORMANCE ADDITIVES FOR ASPHALT APPLICATIONS
Midwest Account Manager
This presentation will focus on high performance additives for asphalt applications such as emulsified asphalts, hot-mix asphalts, patch mix and non-paving. Joe will specifically address why and how they are used within the application. He will also briefly discuss the chemistry of emulsifiers, peptizers, and antistrip additives while highlighting their performance and benefits.
FORMULATION AND CHEMISTRY CONSIDERATION IN ASPHALT MATERIALS
JP Planche, Ph.D.
Chief Executive Officer
Western Research Institute
University of Wyoming
Air blowing of asphalt fluxes has always been the process of choice to make roofing coatings. Is this going to stay this way forever? More and more additives are being used in the formulation of binders for paving or roofing. This presentation will aim to shed some new light on how the formulation can impact the chemistry and the performance, expectedly and sometimes unexpectedly, using new tools or new approaches.
EVALUATING REJUVENATOR EFFECTIVENESS
Amy Epps Martin, Ph.D., P.E.
Senior Research Engineer
Texas A&M Transportation Institute
Environmental sustainability and economic benefits and/or improved cracking performance with the use of increased recycled asphalt materials (RAM) motivate the use of rejuvenators. As each materials combination of virgin and recycled materials is unique, their performance must be engineered through selection of component materials and proportions and evaluation of the blended binders with the rejuvenator. Effectiveness of different rejuvenators and doses can be compared by assessing resistance to oxidative aging and subsequent changes in rheology. At the microstructural level, homogeneity of the binder blend can also be evaluated.
NCAT RESEARCH ON USE OF RECYCLED PLASTICS IN ASPHALT
Fan Yin, Ph.D., P.E.
Assistant Research Professor
National Center for Asphalt Technology
The National Center for Asphalt Technology (NCAT) at Auburn University has several research studies underway or recently completed regarding use of recycled plastics in asphalt. These studies include a comprehensive literature review to identify the existing body of knowledge and knowledge gaps for future research, performance evaluation and chemical characterization of wet processed recycled plastic modified asphalt binders and mixtures, proof-of-concept investigation into the dry process of adding recycled plastics, and a multi-million-dollar accelerated pavement testing experiment on the NCAT Test Track. Dr. Yin will present the research findings of completed studies and discuss questions being investigated in the ongoing studies.