Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate

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1.1 This test method covers the determination of the average density of a quantity of fine aggregate particles (not including the volume of voids between the particles), the relative density (specific gravity), and the absorption of the fine aggregate. Depending on the procedure used, the density, in kg/m3 (lb/ft3) is expressed as oven-dry (OD), saturated-surface-dry (SSD), or as apparent density. Likewise, relative density (specific gravity), a dimensionless quality, is expressed as OD, SSD, or as apparent relative density (apparent specific gravity). The OD density and OD relative density are determined after drying the aggregate. The SSD density, SSD relative density, and absorption are determined after soaking the aggregate in water for a prescribed duration.
1.2 This test method is used to determine the density of the essentially solid portion of a large number of aggregate particles and provides an average value representing the sample. Distinction is made between the density of aggregate particles as determined by this test method, and the bulk density of aggregates as determined by Test Method C 29/C 29M, which includes the volume of voids between the particles of aggregates.
1.3 This test method is not intended to be used for lightweight aggregates.
1.4 The values stated in SI units are to be regarded as the standard for conducting the tests. The test results for density shall be reported in either SI units or inch-pound units, as appropriate for the use to be made of the results.
1.5 The text of this test method references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of this test method.
1.6 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.

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Historical
Publication Date
09-Aug-2001
Drafting Committee
Current Stage
Ref Project

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ASTM C128-01e1 - Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
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Designation: C 128 – 01
Standard Test Method for
Density, Relative Density (Specific Gravity), and Absorption
1
of Fine Aggregate
This standard is issued under the fixed designation C 128; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1
e NOTE—Table 1 was revised editorially in August 2003 to correct a typographical error in a value.
1. Scope* footnotes (excluding those in tables and figures) shall not be
considered as requirements of this test method.
1.1 This test method covers the determination of the average
1.6 This standard does not purport to address all of the
density of a quantity of fine aggregate particles (not including
safety concerns, if any, associated with its use. It is the
the volume of voids between the particles), the relative density
responsibility of the user of this standard to establish appro-
(specific gravity), and the absorption of the fine aggregate.
3 3
priate safety and health practices and determine the applica-
Depending on the procedure used, the density, in kg/m (lb/ft )
bility of regulatory limitations prior to use.
is expressed as oven-dry (OD), saturated-surface-dry (SSD), or
as apparent density. Likewise, relative density (specific grav-
2. Referenced Documents
ity), a dimensionless quality, is expressed as OD, SSD, or as
2.1 ASTM Standards:
apparent relative density (apparent specific gravity). The OD
C 29/C 29M Test Method for Bulk Density (“Unit Weight”)
density and OD relative density are determined after drying the
2
and Voids in Aggregate
aggregate. The SSD density, SSD relative density, and absorp-
2
C 70 Test Method for Surface Moisture in Fine Aggregate
tion are determined after soaking the aggregate in water for a
C 125 Terminology Relating to Concrete and Concrete
prescribed duration.
2
Aggregates
1.2 This test method is used to determine the density of the
C 127 Test Method for Density, Relative Density (Specific
essentially solid portion of a large number of aggregate
2
Gravity) and Absorption of Coarse Aggregate
particles and provides an average value representing the
3
C 188 Test Method for Density of Hydraulic Cement
sample. Distinction is made between the density of aggregate
C 566 Test Method for Total Evaporable Moisture Content
particles as determined by this test method, and the bulk
2
of Aggregate by Drying
density of aggregates as determined by Test Method C 29/
C 670 Practice for Preparing Precision and Bias Statements
C 29M, which includes the volume of voids between the
2
for Test Methods for Construction Materials
particles of aggregates.
C 702 Practice for Reducing Samples of Aggregate to
1.3 This test method is not intended to be used for light-
2
Testing Size
weight aggregates.
4
D 75 Practice for Sampling Aggregates
1.4 The values stated in SI units are to be regarded as the
2.2 AASHTO Standard:
standard for conducting the tests. The test results for density
AASHTO No. T 84 Specific Gravity and Absorption of Fine
shall be reported in either SI units or inch-pound units, as
5
Aggregates
appropriate for the use to be made of the results.
1.5 The text of this test method references notes and
3. Terminology
footnotes which provide explanatory material. These notes and
3.1 Definitions:
1 2
This test method is under the jurisdiction of ASTM Committee C09 on Annual Book of ASTM Standards, Vol 04.02.
3
Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee Annual Book of ASTM Standards, Vol 04.01.
4
C09.20 on Normal Weight Aggregates. Annual Book of ASTM Standards, Vol 04.03.
5
Current edition approved Aug. 10, 2001. Published October 2001. Originally Available from American Association of State Highway and Transportation
published as C 128–36. Last previous edition C 128–97. Officials, 444 North Capitol St. N.W., Suite 225, Washington, DC 20001.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C128–01
3.1.1 absorption, n—the increase in mass of aggregate due mixtures that are proportioned or analyzed on an absolute
to water penetrating into the pores of the particles, during a volume basis. Relative density (specific gravity) is also used in
prescribed period of time but not including water adhering to
the computation of voids in aggregate in Test Method C 29/
the outside surface of the particles, expressed as percentage of C 29M. Relative de
...

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