Category: Roll of Honor

John Gray has made key contributions in the field of hot-mix asphalt the last thirty years. He has diligently and energetically promoted high construction standards for asphalt pavements through NAPA’S national outreach program and its state organizations. He served as the National Asphalt Pavement Association’s (NAPA) Chief Executive Officer from 1963 until 1992.  As CEO, … Continue reading John Gray

Fred M. Fehsenfeld, Sr., currently Chairman of the Board of Asphalt Materials, Inc. in Indianapolis, has made vital contributions to the asphalt industry over the past three decades in the fields of asphalt materials and construction. He has been a compelling spokesman for the stability of large aggregate in asphalt mixtures. He has recorded and … Continue reading Fred M. Fehsenfeld, Sr.

Gerald S. Triplett, President of the Asphalt Institute from 1983 to 1992, has made outstanding contributions to the asphalt industry during his career. Mr. Triplett guided the Institute through major reorganizations and through the crucial move in 1989 of its International Headquarters and Research Center from College Park, Maryland to Lexington, Kentucky. He was a … Continue reading Gerald S. Triplett

Bernard F. Kallas was a major contributor to the development of asphalt paving mix design, construction practices and asphalt testing procedures. He is the author of numerous papers on tests of asphalt paving mixtures, asphalt paving mix design and the design of asphalt pavement structures. During his professional career, Mr. Kallas was engaged in continuous … Continue reading Bernard F. Kallas

Fred N. Finn has made key contributions in the field of asphalt pavement design. In the late 1970’s, Mr. Finn served as Chairman of the consulting group that developed the Asphalt Institute’s asphalt concrete design procedure which makes use of analytical design. Later, he was instrumental in developing a model for mechanistic design procedure for … Continue reading Fred N. Finn

The contributions of Carl L. Monismith, Professor of Civil Engineering and Research Engineer at the University of California at Berkley, to the science of asphalt technology are both numerous and significant. He is internationally recognized for his work in the fields of asphalt pavement design and laboratory characterization. He is well known for is research … Continue reading Carl L Monismith

Luke W. Corbett was well known in the asphalt industry for developing the standard test method for separating asphalt into fractions.  Known as ASTM Standard D 4124.86, the method is widely used in asphalt laboratories around the world. Mr. Corbett continually shared his broad knowledge of asphalt refining, asphalt chemistry and asphalt chemical analysis with … Continue reading Luke W. Corbett

John M. Griffith, former Director of Technical Services and Applied Research for the Asphalt Institute, was primarily responsible for developing the Institute’s technical publications program. He also has a significant role in establishing viscosity grading concepts for asphalts. He served on the Working Committee that developed the initial plans for the American Association of State … Continue reading John M. Griffith

Bernard A. “Barney” Vallerga pioneered the development and methods of applications of petroleum oils and resins for use in reconstituting aged asphalts in pavements. His work led to the widespread use of restorative agents in the present day asphalt pavement recycling industry. Mr. Vallerga began his career as Materials Testing Engineer for the Hershey Inspection … Continue reading Bernard A. Vallerga

Vytautas “Vyt” P. Puzinauskas is widely known in the industry for his influence on the development of the viscosity grading system of asphalt. He designed the Asphalt Institute vacuum capillary viscometer and the Asphalt Institute—Puinauskas field viscometer used around the world. He initiated research that established significant differences between the chemical and physical properties of … Continue reading Vytautas P. Puzinauskas