Engineering Expertise that Drives the Asphalt Industry
Asphalt Institute engineers have a long tradition of advancing the use and quality of asphalt through research, technical guidance, and collaboration. From specifications and testing improvements to expert-led training and publications, our engineering team supports agencies and the industry in building better, longer-lasting asphalt pavements.
Our Asphalt Institute experts provide comprehensive coverage on the latest trends, technologies, and strategies shaping the asphalt landscape. Search hundreds of articles about the paving and roofing industry.
Meet Our Engineers
Connect with Asphalt Institute’s regional engineers and technical experts who provide guidance, training, and support to agencies and the industry.
Amma Agbedor
Senior Canadian and Research Engineer
Education | Engineering
Danny Gierhart
Director of Engineering and Training
Education | Engineering
Dave Johnson
Senior Regional Engineer
Education | Engineering
Greg Harder
Senior Regional Engineer
Education | Engineering
Grover Allen
Regional Engineer
Education | Engineering
Jason Wielinski
Regional Engineer
Education | Engineering
Jhony Habbouche
Regional Engineer
Education | Engineering
Mark Blow
Senior Regional Engineer
Education | Engineering
Mark Buncher
Vice President of Engineering
Education | Engineering
Specification Databases
Asphalt Institute maintains comprehensive specification databases for asphalt binders and emulsions across the U.S. states and the Canadian provinces. Individual documents can be downloaded for each State or Provincial agency that summarizes their respective asphalt binder or emulsion specifications. A standardized format lists the grades used by that agency and test requirements for each grade, along with additional notes and details.
Technical Resources
Asphalt Institute publishes technical documents designed to educate everyone involved in asphalt pavement design, materials, production, construction, and rehabilitation and maintenance. These resources promote best practices, improve performance, and ensure asphalt remains a durable, sustainable part of modern infrastructure.
Frequently Asked Questions
Find answers to common questions about Asphalt Institute’s technical publications, specifications, and training resources.
Glossary of Terms
Explore definitions for common asphalt engineering terms and technical language.