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Investigation Of Coarse Aggregate Strength For Use In Stone Matrix Asphalt, Brandon J. Celaya, John E. Haddock
Investigation Of Coarse Aggregate Strength For Use In Stone Matrix Asphalt, Brandon J. Celaya, John E. Haddock
JTRP Technical Reports
Stone Matrix Asphalt is a gap-graded hot-mix asphalt mixture composed of a coarse aggregate skeleton and a binder-rich mortar. The mixture type was first introduced to the United States in 1991, with one of the first test sections placed on I-70 near Richmond, Indiana. To help control the selection of coarse aggregate, the Indiana Department of Transportation specified a maximum Los Angeles Abrasion loss value of 30 percent. An investigation into the coarse aggregate specifications for use in Stone Matrix Asphalt was completed in this study. Emphasis was placed on evaluating various tests that may be useful is specifying coarse …