13C NMR STUDIES ON ROADWAY ASPHALTS

Autor: Hagen, Amulf P., Johnson, Marie Ponder, Randolph, Bruce B.
Zdroj: Petroleum Science and Technology; January 1989, Vol. 7 Issue: 9 p1289-1326, 38p
Abstrakt: Roadway asphalt has been characterized by 13C NMR and reasonable chemical shift assignments made. An initial analysis of the asphalt samples from the refinery liquid, plant mix. Initial and 18 month cores has been made; however, these roadways have not aged sufficiently to develop correlations with performance.
Databáze: Supplemental Index