Roll of Honor - Ralph A. Moyer

Ralph A. Moyer


For more than forty years, Professor Moyer’s career has been one of unflagging effort toward the advancement of highway engineering. His research has been predominantly in pavement design, driving safety, and road surface characteristics. But through it all one may discern a pioneering concept of road and vehicle as a combination that governs many highway … Continue reading Ralph A. Moyer

Roll of Honor - Francis N. Hveem

Francis N. Hveem


Over a 46-year span, Francis N. Hveem invented and improved an array of asphalt testing equipment that has assisted engineers and technicians throughout the world. Among his well-known inventions are the Stabilometer, Cohesiometer, Kneading Compactor, and Cohesiograph. He also originated and developed several important testing procedures, including the Sand Equivalent and Centrifuge Equivalent Methods. Joining … Continue reading Francis N. Hveem

Roll of Honor - Robert "Hugh" Baldock

Robert Hugh Baldock


As a result of an entire career devoted to highway engineering, particularly maintenance problems, Robert Hugh Baldock helped accomplish numerous improvements in the specifications for oiled and surface-treated highways and for other types of bituminous construction in Oregon as well as elsewhere in the United States. He has served as President of both the American … Continue reading Robert Hugh Baldock

Roll of Honor - Earl Foster Kelly

Earl Foster Kelly


As a leader in the physical research field on highway materials, Earl Foster Kelly made many notable contributions to the body of knowledge we now posses about asphalt. He is known not only for his individual research but also as a leader on many research and committees. Much of his invaluable work was performed during … Continue reading Earl Foster Kelly

Roll of Honor - Francis Pitt Smith

Francis Pitt Smith


Francis Pitt Smith was an expert and pioneer in the technology of refining asphalt derived from petroleum. One of his greatest contributions was the perfecting of a method for making usable paving asphalt from Mexican oil. This was achieved in 1909 when, at the instigation of Lord Cowdray, noted British oil magnate, he had gone … Continue reading Francis Pitt Smith

Roll of Honor - James Love Land

James Love Land


As Chief Engineer of the Alabama State Highway Department’s Bureau of Materials and Tests, James L. Land spearheaded the development of design criteria and construction procedures for that state’s low-cost asphalt road program. This program, which made maximum use of local materials, was considered a model throughout the world during the 1930’s. Under his leadership, … Continue reading James Love Land

Roll of Honor - Logan Waller Page

Logan Waller Page


1870 – 1918 Logan Waller Page, first Director of the U.S. Bureau of Public Roads (BPR), left a lasting impression on road construction in the United States. His entire career dealt with roads, running the entire gamut from materials to administration. He delighted particularly in utilizing scientific knowledge for practical purposes and thus became a … Continue reading Logan Waller Page

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E. J. DeSmedt


E.J. DeSmedt, a Belgian chemist, might be considered the father of asphalt paving in the United States. In 1870, on a street in Newark, New Jersey, he placed the first asphalt pavement in this country, using natural asphalt from the asphalt lake in Trinidad. Four years later, he laid a similar sheet of asphalt pavement … Continue reading E. J. DeSmedt

Roll of Honor - Walter Johnson Emmons

Walter Johnson Emmons


During many years of membership in the Association of Asphalt Paving Technologists (AAPT), Mr. Walter Emmons did work of great benefit to the asphalt industry. He was President of AAPT in 1929 and its Secretary-Treasurer for 15 years. He is both an honorary and life member of the Association. An educator for many years in … Continue reading Walter Johnson Emmons

Roll of Honor - Joseph R. Draney

Joseph R. Draney


1879 – 1962 Appointed the first President of the Asphalt Institute in 1919, (then known as The Asphalt Association), Joseph R. Draney was instrumental in organizing a fledgling association that was destined to become the asphalt industry’s worldwide spokesman. Mr. Draney continued as the Institute’s President until 1925. He also served six years as a … Continue reading Joseph R. Draney