Greg Harder

Senior Regional Engineer
P.E.
Education | Engineering
Time at Asphalt Institute: 15 years

Gregory (Greg) A. Harder, P.E., joined the Asphalt Institute in 2010 and continues to serve as the Senior Regional Engineer for the Northeast region. As a registered professional engineer in both NY and PA, he has more than 32 years of experience in the asphalt industry. He has been involved in all aspects of road building – from asphalt mix design and testing to construction and pavement preservation.


After receiving his bachelor’s degree in civil engineering from Syracuse University, he began his career in the asphalt industry at Suit-Kote Corporation in 1993. At that time, Superpave was just in its infancy so working closely with NYSDOT, he helped to successfully implement both the PG Binder and Superpave Volumetric Mix Design specifications.

In 2000, he was appointed to Vice President of McConnaughay Technologies – the engineering and research division of Suit-Kote. While providing technical support and know-how for asphalt emulsion manufacturing and pavement preservation treatments to McConnaughay’s many licensees around the world, he was also involved in the design and construction of new emulsion plants in South Korea and Canada.


He was appointed as an adjunct professor at Syracuse University in 2002 to fill in for one of his former professors who was going to be away on sabbatical for 9 months. While there, he developed and taught the senior-level pavement design course.


Greg and his wife, Lynn, reside in central New York. As a former high school football coach, he continues to love watching football at all levels.

My Courses

Greg's Articles

Gregory A. Harder, P.E. Archives - Asphalt magazine The Magazine of the Asphalt Institute

  • Balanced mix design
    by Gregory A. Harder, P.E. on September 28, 2023 at 3:48 pm

    The rest of the story The objective of an asphalt mixture design is to determine the combination of asphalt binder and aggregate that will give long-lasting performance as part of the pavement structure. A desirable mix design uses a gradation of aggregates and binder content that yields a mixture having sufficient asphalt to ensure a The post Balanced mix design appeared first on Asphalt magazine.

  • Early preventative maintenance extends asphalt pavement life
    by Gregory A. Harder, P.E. on October 1, 2022 at 4:14 pm

    As asphalt pavements age, the asphalt binder that glues the aggregates together oxidizes, making the pavements more brittle and susceptible to cracking and other deterioration. To help mitigate this process, many agencies will apply preventive maintenance products such as chip seals. Most agencies, for various reasons, wait to place their chip seals until the onset The post Early preventative maintenance extends asphalt pavement life appeared first on Asphalt magazine.

  • Evolution of mixture performance testing in New Jersey
    by Gregory A. Harder, P.E. on March 14, 2020 at 4:17 pm

    The New Jersey Department of Transportation (NJDOT) is often recognized nationally for its work with mixture performance testing – as they should be. In 2006, Rutgers University initially began using asphalt mixture performance testing as a means to reverse engineer a specialty (proprietary) Bridge Deck Waterproofing Surface Course (BDWSC) mixture to be placed on the The post Evolution of mixture performance testing in New Jersey appeared first on Asphalt magazine.

  • Are PG 64E binders your father’s PG 76?
    by Gregory A. Harder, P.E. on January 18, 2019 at 9:06 pm

    Put it to the test The year was 1993 and maybe your father worked in the asphalt industry. The Pentium microprocessor was introduced by Intel. Windows NT 3.1 was released by Microsoft. The average cost of gasoline was $1.16 per gallon. A Sony Walkman cost $29.98 and Superpave came out providing us with a new The post Are PG 64E binders your father’s PG 76? appeared first on Asphalt magazine.

  • Full implementation of Multiple Stress Creep Recovery (MSCR)
    by Gregory A. Harder, P.E. on February 12, 2018 at 4:10 pm

    A look at three Northeast U.S. states Back in the early 90s the advent of Superpave gave us a performance-graded (PG) binder specification known as AASHTO M320. The new PG specification considered the climate including both high and low pavement temperatures, traffic loading rates including both speed and volume plus incorporated aging of the binder The post Full implementation of Multiple Stress Creep Recovery (MSCR) appeared first on Asphalt magazine.

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