When the Utah Department of Transportation (DOT) adopted the first performance grade (PG) binder specifications in 1996, the control of asphalt quality through performance specifications took an important step forward. Unfortunately, a performance-based system comparable to SuperPave has never materialized for the application and use of asphalt emulsions. Although the need for and value of pavement preservation fills the headlines of paving journals around the world, the asphalt emulsions used for most preventive maintenance applications are controlled using antiquated test methods rather than those that may be found in a modern asphalt laboratory.
Progress Toward Performance-Graded Emulsified Asphalt Specifications. A Workshop. Held in Washington, DC on January 17, 2013
2014
124 pages
Report
Keine Angabe
Englisch
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