AASHTO T330 – Standard Method of Test for The Qualitative Detection of Harmful Clays of the Smectite Group in Aggregates Using Methylene Blue
Scope
The purpose of this standard is to identify the presence of harmful clays of the smectite group (poor minus 75-μm material) and to provide an indication of the surface activity of the aggregate.
Keywords
clay and organic material; fine aggregate; Methylene Blue; moisture susceptibility