ASTM D7172-14
(Test Method)Standard Test Method for Determining the Relative Density (Specific Gravity) and Absorption of Fine Aggregates Using Infrared (Withdrawn 2022)
Standard Test Method for Determining the Relative Density (Specific Gravity) and Absorption of Fine Aggregates Using Infrared (Withdrawn 2022)
SIGNIFICANCE AND USE
4.1 Bulk relative density (specific gravity) is the characteristic generally used for calculation of the volume occupied by the aggregate in various mixtures containing aggregate including Portland cement concrete, bituminous concrete, and other mixtures that are proportioned or analyzed on an absolute volume basis. Bulk relative density (specific gravity) is used in the computation of voids in aggregate in C1252 and C29/C29M. Bulk relative density (specific gravity) determined on the saturated surface dry (SSD) basis is used if the aggregate is wet, that is, if its absorption has been satisfied. Conversely, the bulk relative density (specific gravity) determined on the oven-dry basis is used for computations when the aggregate is dry or assumed to be dry.
4.2 Apparent relative density (specific gravity) pertains to the relative density of the solid material making up the constituent particles not including the pore space within the particles that is accessible to water. This value is not widely used in construction aggregate technology.
4.3 Water absorption values are used to calculate the change in the mass of an aggregate due to water absorbed in the pore spaces within the constituent particles, compared to the dry condition, when it is deemed that the aggregate has been in contact with water long enough to satisfy most of the absorption potential. The laboratory standard for absorption is that obtained after submerging dry aggregate for approximately 24 hours in water. Aggregates mined from below the water table may have a higher absorption when used, if not allowed to dry. Conversely, some aggregates when used may contain an amount of absorbed moisture less than the 24 hours soaked condition: For an aggregate that has been in contact with water and that had free moisture on the particle surface, the percentage of free moisture can be determined by deducting the absorption from the total moisture content determined according to C566 by drying.
SCOPE
1.1 This test method covers the determination of the relative density (specific gravity) and absorption of fine aggregates.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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.
WITHDRAWN RATIONALE
This test method covered the determination of the relative density (specific gravity) and absorption of fine aggregates.
Formerly under the jurisdiction of Committee D04 on Road and Paving Materials, this test method was withdrawn in July 2022. This standard is being withdrawn without replacement due to its limited use by industry.
General Information
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D7172 −14
Standard Test Method for
Determining the Relative Density (Specific Gravity) and
1
Absorption of Fine Aggregates Using Infrared
This standard is issued under the fixed designation D7172; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope D75 Practice for Sampling Aggregates
D4753 Guide for Evaluating, Selecting, and Specifying Bal-
1.1 Thistestmethodcoversthedeterminationoftherelative
ances and Standard Masses for Use in Soil, Rock, and
density (specific gravity) and absorption of fine aggregates.
Construction Materials Testing
1.2 The values stated in SI units are to be regarded as
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2.2 AASHTO Standards:
standard. No other units of measurement are included in this
T-84 Test Method for Specific Gravity and Absorption of
standard.
Fine Aggregate
1.3 This standard does not purport to address all of the
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2.3 Other Documents:
safety concerns, if any, associated with its use. It is the
Operational Instructions
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3. Terminology
bility of regulatory limitations prior to use.
3.1 Definitions—As defined in C125 and D8:
2. Referenced Documents
3.1.1 Automatic Volumetric Mixer (AVM), n—an automated
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unit to hold and agitate a volumetric flask while applying a
2.1 ASTM Standards:
vacuum to the flask.
C29/C29M Test Method for Bulk Density (“Unit Weight”)
and Voids in Aggregate
4. Significance and Use
C125 Terminology Relating to Concrete and Concrete Ag-
gregates
4.1 Bulk relative density (specific gravity) is the character-
C128 Test Method for Relative Density (Specific Gravity)
istic generally used for calculation of the volume occupied by
and Absorption of Fine Aggregate
the aggregate in various mixtures containing aggregate includ-
C566 Test Method forTotal Evaporable Moisture Content of
ing Portland cement concrete, bituminous concrete, and other
Aggregate by Drying
mixtures that are proportioned or analyzed on an absolute
C670 Practice for Preparing Precision and Bias Statements
volume basis. Bulk relative density (specific gravity) is used in
for Test Methods for Construction Materials
the computation of voids in aggregate in C1252 and C29/
C702 PracticeforReducingSamplesofAggregatetoTesting
C29M. Bulk relative density (specific gravity) determined on
Size
the saturated surface dry (SSD) basis is used if the aggregate is
C1252 Test Methods for Uncompacted Void Content of Fine
wet, that is, if its absorption has been satisfied. Conversely, the
Aggregate (as Influenced by Particle Shape, Surface
bulk relative density (specific gravity) determined on the oven-
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Texture, and Grading) (Withdrawn 2015)
dry basis is used for computations when the aggregate is dry or
D8 Terminology Relating to Materials for Roads and Pave-
assumed to be dry.
ments
4.2 Apparent relative density (specific gravity) pertains to
the relative density of the solid material making up the
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This test method is under the jurisdiction of ASTM Committee D04 on Road
constituent particles not including the pore space within the
and Paving Materials and is the direct responsibility of Subcommittee D04.51 on
particles that is accessible to water. This value is not widely
Aggregate Tests.
used in construction aggregate technology.
Current edition approved June 1, 2014. Published September 2014. Originally
ε1
approved in 2006. Last previous edition approved in 2006 as D7172 – 06 . DOI:
10.1520/D7172-14.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
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contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Association of State Highway and Transportation
Standards volume information, refer to the standard’s Document Summary page on Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
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the ASTM website. AvailablefromThermoFisherScientific,2555KerperBoulevard,P.O.Box797,
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The last approved version of this historical standard is referenced on Dubuque, Iowa 52004-0797, U.S.A., or online at http://cp-thermofisher.kb.net/
www.astm.org. display/4/kb/article.aspx?aid=259320&n=1&docid=15899&tab=search.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D7172−14
4.3 Water absorption values are used to calculate the change 7. Preparation of Test Specimen
in the mass of an aggregate due to water absorbed in the pore
7.1 Obtain 1.5 kg 6 10 g of the fine aggregate from the
spaces within the constituent particl
...
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