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AASHTO T 209-20
M00004469
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AASHTO T 209-20 Standard Method of Test for Theoretical Maximum Specific Gravity (Gmm) and Density of Hot-Mix Asphalt (HMA)
standard by American Association of State and Highway Transportation Officials, 2020
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AASHTO T 209-20 covers the determination of the theoretical maximum specific gravity/gravity mix maximum (Gmm) and density of uncompacted hot mix asphalt (HMA) at 25C (77F).Note - The precision of the method is best when the procedure is performed on samples that contain aggregates that are completely coated. In order to assure complete coating, it is desirable to perform the method on samples that are close to the optimum asphalt binder content.