ASTM-C128 › Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate
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1.1 This test method covers the determination of relative density (specific gravity) and the absorption of fine aggregates. The relative density (specific gravity), a dimensionless quality, is expressed as oven-dry (OD), saturated-surface-dry (SSD), or as apparent relative density (specific gravity). The OD relative density is determined after drying the aggregate. The SSD relative density and absorption are determined after soaking the aggregate in water for a prescribed duration.
1.2 This test method is not intended to be used for lightweight aggregates that comply with Specification Group I aggregates.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 The text of this test method 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 this test method.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
absorption; aggregate; apparent relative density; fine aggregate; relative density; specific gravity;; ICS Number Code 91.100.30 (Concrete and concrete products)
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Revision with Title Change
March 15, 2015