Pavement preservation is a cost-effective and environmentally friendly way to extend the life of your roadways and make public funding go further. A well-implemented pavement preservation approach achieves maximum efficiency by increasing the average condition of your pavement while decreasing your average spending per square yard. Pavement preservation treatments are known for their ability to ensure quality with minimal effect on your budget and the environment.
Pavement preservation is the core of our AMISEAL™ product line, including micro-surfacing, chip seal, scrub seal, slurry seal, cape seal, and more.
This year, Asphalt Materials Inc. and Heritage Research group attended the National Pavement Preservation Conference (NPPC) hosted by the National Center for Pavement Preservation (NCPP). Sessions were held to further knowledge, development, and research regarding the preservation of pavement. The poor condition of our roads results in $130 billion dollars added to vehicle repairs and operating costs per year (Alabama DOT). To avoid such situations, we must establish an effective preservation program and protect infrastructure investment.
DAY 1
On day one, we heard from several presenters that traveled near and far to share their advice, best practices and research. Below we highlight some of the speakers and key topics they discussed.
Mike Smith: Commissioner of Indiana (INDOT)
The Indiana Department of Transportation (INDOT) has owned and maintained more than 5,700 bridges and has nearly 30,000 roadway lane miles. INDOT has created a long term, fully funded plan to improve Indiana’s roadways and bridges that consists of fixing what they currently have, finishing what they have started, planning for the future, and impacting the surrounding cities, towns and counties.
Mike shared that at the highest level it is important to invest in our infrastructure, keep roads in good condition longer, use taxpayer dollars wisely and be environmentally sensitive. Looking ahead, INDOT plans to focus on the quality of the pavement life including preservation techniques, economic development, resiliency, and sustainability.
George Connor: Deputy Director, Operations (Alabama DOT)
George Connor discussed the preservation challenge and how important it is that we create longer lasting pavements. It is a challenging undertaking because the road system has 4.2 million centerline miles. The nation’s infrastructure is valued at $8.3 trillion, and in 2019 federal state governments spent $3.6 billion on highways.
Pavement preservation is important because of the people and communities it impacts. Roadway networks connect about 7.9 million business establishments with customers, suppliers and workers. In 2018, roadway networks served about 327 million residents and 80 million international visitors. Transportation infrastructure has a major economic impact, so we must work together to share pavement preservation techniques that are working well.
DAY 2
On day two of the conference, several of our own were able to speak about advancements in asphalt emulsions, workforce development strategies, and cold recycled pavements.
Dan Swiertz: Asphalt Materials Inc. | Lab Manager
Latest Advancements in Emulsions
The use of asphalt emulsions is ubiquitous throughout the lifecycle of an asphalt pavement. From new construction to recycling and reclamation, emulsions are formulated to deliver performance across a range of climatic regions and construction variables. New and innovative advancements in emulsion technology have created valuable opportunities for contractors and road owners alike. This presentation examined several advancements including penetrating emulsion and micro surfacing that offer unique opportunities to extend the pavement lifecycle.
Kierstin Janik: Heritage Construction + Materials | Chief Talent Officer
Workforce Development Strategies
As construction companies face lower workforce participation and an ageing workforce. The U.S. Bipartisan Infrastructure Law projects potentially creating 3.2 million new jobs across the non-residential construction value chain, and 300,000-600,000 new construction workers are needed to fill the gap with projected peak needs around 2027-2028. As a result, companies must develop holistic strategies to engage potential new employees and increase workforce development.
Kierstin discussed some approaches HC+M has taken recently including highlighting its employer brand through social media and emphasizing the industry’s meaningful work, safety, support and good wages. She also shared more about HC+M’s talent acquisition strategy that prioritizes investing in the future though programs with middle schools, high schools and universities.
Megan Yount: Heritage Research Group | Pvmt. Mat Engineering Manager
Characterizing Cold Recycled Pavements from Field-Sampled Cores
Replicating field-placed Cold In-place Recycled (CIR) and Cold Central Plant Recycled (CCPR) pavements with lab-produced mixtures may not accurately capture field conditions during construction, exact material proportions, or compaction effort. These factors often influence the resulting mixture properties, causing uncertainty that lab-produced mixtures reflect that of the in-situ pavement mixture. Examples from two State DOT projects were reviewed, followed by a discussion of results from tests including Dynamic Modulus, Marshall Stability, and Indirect Tensile Strength Testing.
DAY 3
On day three, conference attendees visited the Indiana State Fairgrounds, where they could see INDOT evaluation equipment and research posters, static displays, and field demonstrations. Several contractors showcased their equipment including a diamond grinder, greens broom scrubber, pavement evaluation van and more.
The live demonstrations listed below followed the static displays.
Treatment
Contractor
Hot in Place Recycling
Gallagher Asphalt
Rapid Set Concrete Patch
CTS/Rapid Set
Concrete Patch Materials
FPT Infrastructure
RMV Robotic Crack Sealer
RMV/Sealmaster Robotic Crack Sealer
Treatment
Contractor
Mastic and Crack Seal
CRAFCO
Pavement Retexturing
Skidabrader
Maltene Based Rejuvenator
Pavement Technology Inc.
Microsurface
Pavement Solutions
Scrub Seal
Pavement Maintenance Systems/Etnyre
Hot in Place RecyclingHIR performed by Gallagher AsphaltRobotic Crack SealerCTS Rapid Set Concrete PatchMicro-surfacing performed by Pavement SolutionsScrub Seal performed by Pavement Maintenance Systems
Asphalt Materials Inc. and Heritage Research Group had an amazing time attending NPPC and learning pavement preservation best practices from agencies and industry thought leaders. Thank you to everyone who stopped by our booth and for sharing your ideas about how to take care of our infrastructure!
Excerpts from the JULY – AUGUST 2022 Edition of TRANSPORTATION BUILDER Magazine from ARTBA, The American Road & Transportation Builders Association
BY SCOTT BERGKAMP
We often have heard that a chain is only as strong as its weakest link. As we evaluate our road networks for resiliency, this maxim certainly applies. In an emergency, a few scattered issues on major thoroughfares in a community will hinder first responders and population evacuation.
Focus on the Entire Network.
That’s why state and local road agencies—when improving the resiliency of their infrastructure—should enhance the pavement condition of the entire network via preservation. The uncertainty of trying to predict where failures will occur and then addressing only those locations—is eliminated when an entire road network is in good condition.
Pavement preservation is intended to keep good roads good—prolonging pavement life and resiliency—without adding structural value. Preservation techniques include surface treatments such as slurry surfacing, crack sealing, chip sealing, micro-surfacing, rejuvenation, hot and cold in-place recycling and thin-lift hot-mix asphalt paving, and concrete pavement restoration. In addition to providing cost savings for governments, pavement preservation utilizes up to 80 percent less of the earth’s non-renewable resources compared to conventional highway rehabilitation and reconstruction programs.
Less Maintenance. Fewer Emissions. Fewer Safety Issues.
Preservation treatments are completed quickly with minimal disruption to traffic. Freely moving traffic produces far fewer emissions than slowed or stopped traffic, so the environment benefits from decreased emissions means fewer road work-related traffic jams, less mobile construction equipment, and fewer, endless processions of haul trucks. Preservation fully utilizes reclaimed asphalt pavement (RAP), keeping it out of landfills. And preservation decreases airborne particulate matter (PM) compared to that emitted during conventional reconstruction.
In addressing network pavement condition, many agencies have demonstrated the ability to improve the condition of the entire network with pavement preservation practices, better utilizing their existing budget while enhancing resiliency.
A Cost-Effective Manner
Agencies found that improving a network’s overall resiliency in a cost-effective manner through pavement preservation is very achievable, and at the same time improves network condition. With this approach, the agency’s constituents will be pleased both during normal times, and also when they experience a disruptive event.
Saves Taxpayer’s Money.
Pavement preservation enhances system resiliency and is environmentally sustainable while it saves taxpayers money. On all accounts, it’s a win-win for road agencies and the road users they serve.
Scan the QR Code to visit the ARTBA Site.
To read the full article in the AUGUST 2022 Edition of TRANSPORTATION BUILDER follow the link below.
Scott Bergkamp is president of Bergkamp Inc., located in Salina, Kansas. He is the immediate past president of FP2, Inc.,the Foundation for Pavement Preservation. Scott’s email is [email protected]
A look behind the scenes into the pavement challenges and what options were considered for this paving application method for Champaign County, Ohio Engineer’s paving project. Read below to see why this cold mix paving product was the clear answer for this project.
Improving the resilience of infrastructure helps advance a more sustainable transportation network.
Pavement preservation is a more cost-effective and environmentally friendly way to extend the life of your roadways and make public funding go further. A pavement preservation strategy is proven to produce fewer greenhouse gas emissions, expend less energy, and give faster application times than the alternative conventional approach, in addition to being cost-effective.
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