6.3.1 Unless fine aggregate is separated into individual size
fractions, maintain it in a damp condition or restore to a damp
condition until use, to prevent segregation, unless material
uniformly graded is subdivided into batch size lots using a
sample splitter with proper size openings. If unusual gradings
are being studied, the fine aggregate may need to be dried and
separated into individual sizes. In this instance, if the total
quantity of fine aggregate required is larger than can be
efficiently blended in a single unit, then the individual size
fractions should be determined in a mass required for each
individual batch. When the total quantity of fine aggregate
needed for the complete investigation is such that it can be
thoroughly mixed, blended, and maintained in a damp condition,
then it should be handled in that manner. Determine the
specific gravity and absorption of aggregates in accordance
with either Test Methods C 127 or C 128