What's Happened to the Quality of Asphalt�

by Ann E. Seltz-Petrash, Asst. Editor; CIVIL ENGINEERING�ASCE, New York, N.Y.,


Serial Information: Civil Engineering—ASCE, 1980, Vol. 50, Issue 12, Pg. 43-46


Document Type: Feature article

Abstract:

After the 1973 oil embargo, state highway departments began complaning that the asphalt cement supplied by refineries did not have as before. Although the asphalt met departmental specifications, field engineers complained that it wasn't as sticky as it used to be that it was tender�did not get hard as quickly, and the mid-1970s there were increased number of complaints about stripping and raveling on relatively new roads. CE interviewed materials engineers from state highway departments and from Federal Highway Administration to learn how serious asphalt-related problems are and what solutions some states have found to these problems.

Subject Headings: Petroleum refining | Highways and roads | Stripping (chemical) | Highway engineering | Federal government | Cement | Asphalts

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