Serving the needs of liquid asphalt manufacturers and suppliers worldwide since 1919.
Willem Heukelom is known and respected throughout the free world for his many contributions to the better understanding of asphalts, asphalt-aggregate mixtures and flexible pavement systems. He has authored and co-authored numerous publications on the subject in several languages. Born on September 11, 1913, he studied chemical engineering at Amsterdam Technical College where he received … Continue reading Willem Heukelom
Both the asphalt industry in general and the Asphalt Institute in particular benefited greatly from the forty-year career of Duane W. Gagle, a long time asphalt engineer for Phillips Petroleum Company. His contributions to the advancement of asphalt technology are numerous. Among them was the initiation of automatic blending of asphalt products, a technique now … Continue reading Duane W. Gagle
The career of Frank M. Drake, inventor and expert in asphalt technology, is best remembered for his major contributions to the design of paving equipment. While a construction engineer with the Kansas Highway Commission, Mr. Drake developed a mechanism for cross-slope control of asphalt paving machine screeds. His attachments, which were adaptable to the major … Continue reading Frank M. Drake
A Pioneer in Deep-Lift and Full-Depth asphalt pavement construction, Charles Beagle is recognized for his distinguished contributions and pioneering efforts in this field. He initiated Deep-Lift, Full-Depth construction of municipal streets with hot-mixed asphalt concrete materials. Mr. Beagle conducted research on temperatures and densities during the compaction of Deep-Lift applications and practical research for cold … Continue reading Charles W. Beagle
C. Krchma’s education as a physical chemist and early experience and investigations in the chemical and physical properties of asphalts, led him to the study of asphalt mixture characteristics and pavement performance. He was an early proponent of evaluating pavement serviceability and performance, especially in light of the many variables and factors which can affect … Continue reading L. C. Krchma
An expert in asphalt technology, Dr. Arthur B. Brown was elected to the asphalt industry’s Roll of Honor in recognition of his distinguished career in this field. Dr. Brown is known to the asphalt industry for his pioneering work on the viscoelastic properties of asphalt, and especially in asphalt rheology. Aware of shortcomings of existing … Continue reading Dr. Arthur B. Brown
An alumnus of the University of Arkansas Engineering School, Mr. Wellborn was first employed by the Arkansas Highway Department in the Department of Materials and Tests from 1933 to 1940. During this period, he pioneered the use of asphalt for soil stabilization and other types of low cost asphalt pavements. After leaving the Arkansas Highway … Continue reading Arvin S. Wellborn
A pioneer in the industry, Mr. Julier — “Big Bill” as he was known because of his physical size and the size of his accomplishments, is credited with many firsts in the asphalt paving field. Born in the east, he moved to California while still a young man. And it was in the west that … Continue reading William G. Julier
Dr. Norman W. McLeod is one of the most widely-known men in the field of asphalt technology. He has written and presented numerous papers on soils engineering, the structural design of flexible pavements and the design of all types of asphalt surfaces and bases. His many contributions to the advancement of asphalt technology have been … Continue reading Dr. Norman W. McLeod
Professor William S. Housel deservedly enjoys world-wide recognition for his contributions in the fields of soil mechanics and flexible pavements. He served many years as a consultant to the Michigan Highway Department, during which time he made extensive studies of flexible pavement in that State. In 1965 he received the Roy W. Crum Distinguished Service … Continue reading William S. Housel
