Title:
ASTM C330/C330M-17a, "Standard Specification for Lightweight Aggregates for Structural Concrete."
Author(s):
ASTM Subcommittee C09.21 on Lightweight Aggregates and Concrete
Publication:
Commentary Reference
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
10.1520/C0330_C0330M-17A
Date:
7/1/2017
Abstract:
This specification covers lightweight aggregates intended for use in structural concrete in which prime considerations are reducing the density while maintaining the compressive strength of the concrete. Procedures covered in this specification are not intended for job control of concrete. Two general types of lightweight aggregates are covered by this specification: aggregates prepared by expanding, pelletizing, or sintering products such as blast-furnace slag, clay, diatomite, fly ash, shale, or slate; and aggregates prepared by processing natural materials, such as pumice, scoria, or tuff. The aggregates shall be composed predominately of lightweight-cellular and granular inorganic material. Lightweight aggregates shall be tested, and should not contain excessive amounts of deleterious substances; and should conform to the specified values of organic impurities, aggregate staining, aggregate loss of ignition, clay lumps and friable particles, loose bulk density, compressive strength, drying shrinkage, popouts, and resistance to freezing and thawing.