ASTM C123/C123M-12
(Test Method)Standard Test Method for Lightweight Particles in Aggregate
Standard Test Method for Lightweight Particles in Aggregate
SIGNIFICANCE AND USE
This test method is used to determine conformance with provisions of Specification C33 pertaining to the amount of lightweight material in fine and coarse aggregates. A heavy liquid with a specific gravity of 2.0 is used to separate particles which may be classified as coal or lignite. Heavier liquids are to be used to check the percentages of other lightweight particles such as chert and shale having a specific gravity less than 2.40.
The test method is useful in identifying porous aggregate particles in research activities or in petrographic analyses.
SCOPE
1.1 This test method covers the determination of the percentage of lightweight particles in aggregate by means of sink-float separation in a heavy liquid of suitable specific gravity.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Some values have only SI units because the inch-pound equivalents are not used in the practice.
Note 1—Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.
1.3 The text of this standard 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 the standard.
1.4 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. For a specific hazard statement, see 6.1.4.
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Designation: C123/C123M − 12 AmericanAssociation State
Highway and Transportation Standard
AASHTO No.: T 113
Standard Test Method for
1
Lightweight Particles in Aggregate
This standard is issued under the fixed designation C123/C123M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope C127 Test Method for Density, Relative Density (Specific
Gravity), and Absorption of Coarse Aggregate
1.1 This test method covers the determination of the per-
C128 Test Method for Density, Relative Density (Specific
centage of lightweight particles in aggregate by means of
Gravity), and Absorption of Fine Aggregate
sink-float separation in a heavy liquid of suitable specific
C702 PracticeforReducingSamplesofAggregatetoTesting
gravity.
Size
1.2 The values stated in either SI units or inch-pound units
C1005 Specification for Reference Masses and Devices for
are to be regarded separately as standard. The values stated in
Determining Mass and Volume for Use in the Physical
each system may not be exact equivalents; therefore, each
Testing of Hydraulic Cements
system shall be used independently of the other. Combining
D75 Practice for Sampling Aggregates
values from the two systems may result in non-conformance
D3665 Practice for Random Sampling of Construction Ma-
with the standard. Some values have only SI units because the
terials
inch-pound equivalents are not used in the practice.
E11 Specification for Woven Wire Test Sieve Cloth and Test
NOTE 1—Sieve size is identified by its standard designation in Speci-
Sieves
fication E11. The alternative designation given in parentheses is for
E100 Specification for ASTM Hydrometers
information only and does not represent a different standard sieve size.
1.3 The text of this standard references notes and footnotes
3. Terminology
which provide explanatory material. These notes and footnotes
3.1 For definitions of terms used in this test method, refer to
(excluding those in tables and figures) shall not be considered
Terminology C125.
as requirements of the standard.
1.4 This standard does not purport to address all of the
4. Significance and Use
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4.1 This test method is used to determine conformance with
priate safety and health practices and determine the applica-
provisions of Specification C33 pertaining to the amount of
bility of regulatory limitations prior to use. For a specific
lightweight material in fine and coarse aggregates. A heavy
hazard statement, see 6.1.4.
liquid with a specific gravity of 2.0 is used to separate particles
which may be classified as coal or lignite. Heavier liquids are
2. Referenced Documents
to be used to check the percentages of other lightweight
2
2.1 ASTM Standards:
particles such as chert and shale having a specific gravity less
C33 Specification for Concrete Aggregates
than 2.40.
C125 Terminology Relating to Concrete and Concrete Ag-
4.2 The test method is useful in identifying porous aggre-
gregates
gate particles in research activities or in petrographic analyses.
1
This test method is under the jurisdiction of ASTM Committee C09 on
5. Apparatus
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
C09.20 on Normal Weight Aggregates.
5.1 Balances—For determining the mass of fine aggregates,
Current edition approved Feb. 1, 2012. Published March 2012. Originally
a balance having a capacity of not less than 500 g, sensitive to
approved in 1936. Last previous edition approved in 2011 as C123/C123M–11.
DOI: 10.1520/C0123_C0123M-12.
at least 0.1 g: for determining the mass of coarse aggregate, a
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
balance having a capacity of not less than 5000 g, sensitive to
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
at least 1 g. Both balances shall conform to the accuracy
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. criterion of the applicable sections of Specification C1005.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C123/C123M − 12
5.2 Containers suitable for drying the aggregate sample, 8. Procedure
and containers suitable for holding the heavy liquid during the
8.1 Fine Aggregate—Allow the dried test specimen of fine
sink-float separation.
aggregate to cool t
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
American Association State
Designation:C123/C123M–11 Designation: C123/C123M – 12 Highway and Transportation Standard
AASHTO No.: T 113
Standard Test Method for
1
Lightweight Particles in Aggregate
This standard is issued under the fixed designation C123/C123M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method covers the determination of the percentage of lightweight particles in aggregate by means of sink-float
separation in a heavy liquid of suitable specific gravity.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard. Some values have only SI units because the inch-pound equivalents
are not used in the practice.
NOTE 1—Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information
only and does not represent a different standard sieve size.
1.3 The text of this standard 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 the standard.
1.4 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. For a specific hazard statement, see 6.1.4.
2. Referenced Documents
2
2.1 ASTM Standards:
C33 Specification for Concrete Aggregates
C125 Terminology Relating to Concrete and Concrete Aggregates
C127 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate
C128 Test Method for Density, Relative Density (Specific Gravity), and Absorption of Fine Aggregate
C702 Practice for Reducing Samples of Aggregate to Testing Size
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
D75 Practice for Sampling Aggregates
D3665 Practice for Random Sampling of Construction Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E100 Specification for ASTM Hydrometers
3. Terminology
3.1 For definitions of terms used in this test method, refer to Terminology C125.
4. Significance and Use
4.1 This test method is used to determine conformance with provisions of Specification C33 pertaining to the amount of
lightweight material in fine and coarse aggregates.Aheavy liquid with a specific gravity of 2.0 is used to separate particles which
may be classified as coal or lignite. Heavier liquids are to be used to check the percentages of other lightweight particles such as
chert and shale having a specific gravity less than 2.40.
1
This test method is under the jurisdiction of ASTM Committee C09 on Concrete and Concrete Aggregates and is the direct responsibility of Subcommittee C09.20 on
Normal Weight Aggregates.
Current edition approved Aug.Feb. 1, 2011.2012. Published September 2011.March 2012. Originally approved in 1936. Last previous edition approved in 20042011 as
C123–04.C123/C123M–11. DOI: 10.1520/C0123_C0123M-112.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
C123/C123M – 12
4.2 The test method is useful in identifying porous aggregate particles in research activities or in petrographic analyses.
5. Apparatus
5.1 Balances—For determining the mass of fine aggregates, a balance having a capacity of not less than 500 g, sensitive to at
least 0.1 g: for determining the mass of coarse aggregate, a balance having a capacity of not less than 5000 g, sensitive to at least
1 g. Bo
...
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