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AI has been active in technical training in the field of asphalt technology since the 1920s. In recent years, the Institute has hosted hundreds of training and certification courses and taught thousands of students. Drawing from this experience and input from recognized centers of excellence nationwide, AI is uniquely qualified to provide a comprehensive, standardized, national best practice protocol for PG asphalt binder testing.


The text for the NBTC program, MS-25 Asphalt Binder Testing, was introduced by the Asphalt Institute in February 2007. Drawing on the practical laboratory expertise of AMRL, FHWA, Asphalt Institute and leading industry experts, MS-25 is the comprehensive link between standards and the technician – providing essential information needed to perform PG system tests correctly. It also covers terminology, handling asphalt binders and temperature measurements.


Asphalt Institute’s Role
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