AASHTO T 98-99 (2004)

AASHTO T 98-99 (2004) is identical to ASTM C115-96a except provisions specified in this document.

This test method covers determination of the fineness of portland cement as represented by a calculated measure of specific surface, expressed as square centimeters of total surface area per gram, or square meters of total surface area per kilogram, of cement, using the Wagner turbidimeter.