Physical factors affecting the durability of asphaltic pavements.

Test asphalts in 3 Penna. counties are hardening with time as measured by phys. tests and % asphaltenes. The Rostler coeff. does not indicate chem. changes of the asphalts, but the modified Rostler coeff. is decreasing with time.

Journal Title: National Academy of Sciences-National Research Council Publication: Petroleum, Petroleum Derivatives, and Related Products Vol. 1618; pp. 1 - 23
Authors: Stanley K. Ciesielski, W. H. Gotolski, Richard W. Smith, J. A. Kofalt
Format: Article
Published: 1968