IS-220 Polyphosphoric Acid Modification of Asphalt
Non-Member: $30.00Your price
This publication provides information to user agencies, consultants, contractors, and suppliers on the use of polyphosphoric acid (PPA) to modify paving grade asphalt binders. The goal of the publication is to clarify issues regarding PPA modification and to help agencies make informed decisions regarding its use.
IS220 : 15 pages ... $30.00