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Description / Abstract:
This specification covers the quality and grading of fine
aggregate for hydraulic cement concrete used in pavements or bases,
highway bridges, and incidental structures.
This specification is for use by a contractor, concrete
supplier, or other purchaser as part of the purchase document
describing the material to be furnished.
Note 1—This specification is regarded as
adequate to ensure satisfactory materials for most concrete. It is
recognized that, for certain work or in certain regions, it may be
either more or less restrictive than needed. For example, where
aesthetics are important, more restrictive limits may be considered
regarding impurities that would stain the concrete surface. The
specifier should ascertain that aggregates specified are or can be
made available in the area of the work, with regard to grading,
physical, or chemical properties, or combination thereof.
Note 2—Definitions of terms used in this
specification may be found in ASTM C 125.
This specification is also for use in project specifications to
define the quality of aggregate, the nominal maximum size of the
aggregate, and other specific grading requirements. Those
responsible for selecting the proportions for the concrete mixture
shall have the responsibility of determining the proportions of
fine and coarse aggregate and the addition of blending aggregate
sizes if required or approved. Specifications for coarse aggregate
are provided in M 80.
The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
The text of this standard references notes and footnotes that
provide explanatory material. These notes (excluding those in
tables and figures) shall not be considered as requirements of this
standard.