Effect of Polyphosphoric Acid on Aging Characteristics of PG 64-22 Asphalt Binder
Description:
This research presents the results on an experimental investigation to identify the effect of polyphosphoric acid (PPA) on aging characteristics of an asphalt binder. Addition of PPA to asphalt binders is said to improve performance of flexible pavements. Asphalt binder PG 64-22 in modified and unmodified conditions was subjected to aging in the laboratory using a regular oven and also simulated short term aging using rolling thin film oven (RTFO) test. Aging experiments were conducted to analy…
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Date:
December 2010
Creator:
Ramasamy, Naresh Baboo