oa Civil Engineering = Siviele Ingenieurswese - Durability of asphaltic bitumen as related to rheologIcal characterIstIcs



This paper is an original investigational sequel to the review of the literature published in the September 1951 issue of the Transactions. The Author's concept of Softening Point Number as a measure of asphaltic bitumen quality is the subject of a rigorous experimental study from a number of angles of durability. Softening Point Number is a rheological characterization index read directly from a chart and relating standard penetration at 77F with softening point.


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