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Description / Abstract:
This specification covers lightweight aggregates intended for
use in structural concrete in which the prime considerations are
reducing the density while maintaining compressive strength of the
concrete. Procedures covered in this specification are not intended
for job control of concrete.
The values stated in SI units are to be regarded as the
standard. The values shown in parentheses are for information
purposes only.
The text of this standard references notes and footnotes that
provide explanatory material. These notes and footnotes (excluding
those in tables and figures) shall not be considered as
requirements of the standard.
Note 1—This specification is regarded as
adequate to ensure satisfactory lightweight aggregates for most
concrete. It is recognized that it may be either more or less
restrictive than needed for some conditions and for special
purposes, such as fire resistance, fill, and concrete
constructions, the use of which is based on load tests rather than
conventional design procedures.