AASHTO M 303-89 (2019)

AASHTO M 303-89 (2019) Standard Specification for Lime for Asphalt Mixtures
standard by American Association of State and Highway Transportation Officials, 1989

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This specification covers two types of lime to be used for reducing water susceptibility in asphalt mixtures.Type I - High calcium-hydrated lime containing maximum magnesium content, calculated as magnesium oxide, of 4 percent by mass. Compliance with chemical composition requirements shall be determined by use of T 219 (Note 1).Type II - Magnesium or dolomitic lime containing magnesium, calculated as magnesium oxide, greater than 4 but no more than 36 percent by mass. Compliance with chemical composition requirements shall be determined by use of ASTM C 25 (Note 2).Note 1: Magnesium oxide content may be determined by ASTM C 25.
Note 2: Except that Section 2, "Samples for Analysis," is excluded.