As a chemist in the Physical Research Branch of the U. S. Bureau of Public Roads for 46 years, Richard Lewis’ entire life was devoted to the asphalt industry. He was the author of more than twenty three technical papers on many phases of asphalt and his accomplishments in the field of research earned him recognition as an authority on bituminous road material.
In February 1955 he received the Department of Commerce Silver Medal Award for his “efforts over a period of forty four years to increase the knowledge of bituminous road materials and to improve their quality.”
In addition to his research work in the Bureau of Public Roads, Mr. Lewis rendered valuable service in the development of federal specifications for asphalts, tars and related materials. He took an active part in the work of the Highway Research Board as a member of its committee concerned with the durability of asphalt.
After becoming a member in 1939, he contributed effectively to the work of the Association of Asphalt Paving Technologists through the preparation and delivery of papers and participation in its technical sessions.
Upon retiring from the Bureau of Public Roads in 1957, he continued his activities in the field of asphalt technology as a consultant until his death in 1967.