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ASTM C123/C123M-23

(Test Method)

Standard Test Method for Lightweight Particles in Aggregate

Standard Test Method for Lightweight Particles in Aggregate

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. 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.  
4.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For a specific hazard statement, see 6.1.4.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
14-Dec-2023
Technical Committee
C09 - Concrete and Concrete Aggregates
Drafting Committee
C09.20 - Aggregates
Current Stage
Ref Project

Relations

Replaces
ASTM C123/C123M-14 - Standard Test Method for Lightweight Particles in Aggregate (Withdrawn 2023)
Effective Date
15-Dec-2023
Refers
ASTM C127-15 - Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate (Withdrawn 2024)
Effective Date
01-Jan-2015
Referred By
ASTM C897-15(2020) - Standard Specification for Aggregate for Job-Mixed Portland Cement-Based Plasters
Effective Date
15-Dec-2023
Referred By
ASTM C33/C33M-23 - Standard Specification for Concrete Aggregates
Effective Date
15-Dec-2023
Referred By
ASTM C404-18 - Standard Specification for Aggregates for Masonry Grout
Effective Date
15-Dec-2023
Referred By
ASTM C144-18 - Standard Specification for Aggregate for Masonry Mortar
Effective Date
15-Dec-2023
Referred By
ASTM D1139/D1139M-22 - Standard Specification for Aggregate for Single or Multiple Asphalt Surface Treatments
Effective Date
15-Dec-2023

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ASTM C123/C123M-23 - Standard Test Method for Lightweight Particles in AggregateASTM C123/C123M-23 - Standard Test Method for Lightweight Particles in Aggregate
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ASTM C123/C123M-23 - Standard Test Method for Lightweight Particles in Aggregate
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Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: C123/C123M − 23 American Association 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 U.S. Department of Defense.
1. Scope 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This test method covers the determination of the per-
C33 Specification for Concrete Aggregates
centage of lightweight particles in aggregate by means of
C125 Terminology Relating to Concrete and Concrete Ag-
sink-float separation in a heavy liquid of suitable specific
gregates
gravity.
C127 Test Method for Relative Density (Specific Gravity)
1.2 The values stated in either SI units or inch-pound units
and Absorption of Coarse Aggregate
are to be regarded separately as standard. The values stated in
C128 Test Method for Relative Density (Specific Gravity)
each system may not be exact equivalents; therefore, each
and Absorption of Fine Aggregate
system shall be used independently of the other. Combining
C702 Practice for Reducing Samples of Aggregate to Testing
values from the two systems may result in non-conformance
Size
with the standard. Some values have only SI units because the
C1005 Specification for Reference Masses and Devices for
inch-pound equivalents are not used in the practice.
Determining Mass and Volume for Use in Physical Testing
of Hydraulic Cements
NOTE 1—Sieve size is identified by its standard designation in Speci-
D75 Practice for Sampling Aggregates
fication E11. The alternative designation given in parentheses is for
D3665 Practice for Random Sampling of Construction Ma-
information only and does not represent a different standard sieve size.
terials
1.3 The text of this standard references notes and footnotes
E11 Specification for Woven Wire Test Sieve Cloth and Test
which provide explanatory material. These notes and footnotes
Sieves
(excluding those in tables and figures) shall not be considered
E100 Specification for ASTM Hydrometers
as requirements of the standard.
3. Terminology
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 3.1 For definitions of terms used in this test method, refer to
responsibility of the user of this standard to establish appro-
Terminology C125.
priate safety, health, and environmental practices and deter-
4. Significance and Use
mine the applicability of regulatory limitations prior to use.
For a specific hazard statement, see 6.1.4.
4.1 This test method is used to determine conformance with
provisions of Specification C33 pertaining to the amount of
1.5 This international standard was developed in accor-
lightweight material in fine and coarse aggregates. A heavy
dance with internationally recognized principles on standard-
liquid with a specific gravity of 2.0 is used to separate particles
ization established in the Decision on Principles for the
which may be classified as coal or lignite. Heavier liquids are
Development of International Standards, Guides and Recom-
to be used to check the percentages of other lightweight
mendations issued by the World Trade Organization Technical
particles such as chert and shale having a specific gravity less
Barriers to Trade (TBT) Committee.
than 2.40.
4.2 The test method is useful in identifying porous aggre-
1
gate particles in research activities or in petrographic analyses.
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
C09.20 on Aggregates.
2
Current edition approved Dec. 15, 2023. Published December 2023. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1936. Last previous edition approved in 2014 as C123/C123M–14 contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
which was withdrawn January 2023 and reinstated in December 2023. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/C0123_C0123M-23. 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 − 23
5. Apparatus 7. Sampling
5.1 Balances—For determining the mass of
...

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