ASTM C142/C142M-10
(Test Method)Standard Test Method for Clay Lumps and Friable Particles in Aggregates
Standard Test Method for Clay Lumps and Friable Particles in Aggregates
SIGNIFICANCE AND USE
This test method is of primary significance in determining the acceptability of aggregate with respect to the requirements of Specification C33.
SCOPE
1.1 This test method covers the approximate determination of clay lumps and friable particles in aggregates.
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.
Note 1—Sieve sizes openings are identified by their Specification E11 designation with their alternative Specification E11 designation given in parentheses for information only.
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.
General Information
Relations
Buy Standard
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: C142/C142M − 10 American Association of State
Highway and Transportation Officials Standard
AASHTO No. T112
Standard Test Method for
1
Clay Lumps and Friable Particles in Aggregates
This standard is issued under the fixed designation C142/C142M; 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 3. Significance and Use
3.1 This test method is of primary significance in determin-
1.1 This test method covers the approximate determination
ing the acceptability of aggregate with respect to the require-
of clay lumps and friable particles in aggregates.
ments of Specification C33.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in 4. Apparatus
each system may not be exact equivalents; therefore, each
4.1 Balance—Abalance or scale accurate to within 0.1 % of
system shall be used independently of the other. Combining
the mass of the test sample at any point within the range of use.
values from the two systems may result in non-conformance
Balances shall conform to the accuracy of the applicable
with the standard.
sections of Specification C1005.
NOTE 1—Sieve sizes openings are identified by their Specification E11 4.2 Containers—Rust-resistant containers of a size and
designation with their alternative Specification E11 designation given in
shape that will permit the spreading of the sample on the
parentheses for information only.
bottom in a thin layer.
1.3 This standard does not purport to address all of the
4.3 Sieves—Sieves conforming to Specification E11.
safety concerns, if any, associated with its use. It is the
4.4 Drying Oven—An oven providing free circulation of air
responsibility of the user of this standard to establish appro-
and capable of maintaining a temperature of 110 6 5 °C [230
priate safety and health practices and determine the applica-
6 10 °F].
bility of regulatory limitations prior to use.
5. Samples
2. Referenced Documents
5.1 Aggregate for this test method shall consist of the
2
2.1 ASTM Standards:
material remaining after completion of testing in accordance
C33 Specification for Concrete Aggregates
withTestMethodC117.Toprovidethequantitiesdesignatedin
C117 Test Method for Materials Finer than 75-µm (No. 200)
5.3 and 5.4, it may be necessary to combine material from
Sieve in Mineral Aggregates by Washing
more than one test by Test Method C117.
C125 Terminology Relating to Concrete and Concrete Ag-
5.2 Dry the aggregate to substantially constant mass at a
gregates
temperature of 110 6 5 °C [230 6 10 °F].
C1005 Specification for Reference Masses and Devices for
5.3 Test samples of fine aggregate shall consist of the
Determining Mass and Volume for Use in the Physical
particles coarser than a 1.18-mm (No. 16) sieve and shall have
Testing of Hydraulic Cements
a mass not less than 25 g.
E11 Specification for Woven Wire Test Sieve Cloth and Test
Sieves
5.4 Separate the test samples of coarse aggregate into
different sizes, using the following sieves: 4.75-mm (No. 4),
3 3 1
9.5-mm ( ⁄8-in.), 19.0-mm ( ⁄4-in.), and 37.5-mm (1 ⁄2-in.). The
test sample shall have a mass not less than indicated in the
1
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee following table:
C09.20 on Normal Weight Aggregates.
Size of Particles Making Up Mass of Test Sample,
Current edition approved Dec. 15, 2010. Published January 2011. Originally
Test Sample min, g
approved in 1938. Last previous edition approved in 2004 as C142–97(2004). DOI:
10.1520/C0142_C0142M-10.
3
4.75 to 9.5-mm (No. 4 to ⁄8-in.) 1000
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 3 3
9.5 to 19.0-mm ( ⁄8 to ⁄4-in.) 2000
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM 3 1
19.0 to 37.5-mm ( ⁄4 to 1 ⁄2-in.) 3000
Standards volume information, refer to the standard’s Document Summary page on 1
Over 37.5-mm (1 ⁄2-in.) 5000
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C142/C142M − 10
5.5 In the case of mixtures of fine and coarse aggregates, P 5 M 2 R /M 3100 (1)
@~ ! #
separate the material on the 4.75-mm (No. 4) sieve, and
where:
prepare the samples of fine and coarse aggregates in accor-
P = percent of clay lumps and friable particles,
dance with 5.3 and 5.4.
M = mass of test sample (for fine aggregate the mass of the
portion coarser than the 1.18-mm (No. 16) sieve as
...
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 of State
Designation:C142–97 (Reapproved 2004) Designation: C142/C142MHighway and– 1T0ransportation Officials Standard
AASHTO No. T112
Standard Test Method for
1
Clay Lumps and Friable Particles in Aggregates
This standard is issued under the fixed designation C142/C142M; 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 approximate determination of clay lumps and friable particles in aggregates.
1.2The values given in SI units are to be regarded as the standard. The values given in parentheses are provided for information
purposes only.
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.
NOTE 1—Sieve sizes openings are identified by their Specification E11 designation with their alternative Specification E11 designation given in
parentheses for information only.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
C33 Specification for Concrete Aggregates
C117 Test Method for Materials Finer than 75-m (No. 200) Sieve in Mineral Aggregates by Washing
C125 Terminology Relating to Concrete and Concrete Aggregates
C1005 Specification for Reference Masses and Devices for Determining Mass and Volume for Use in the Physical Testing of
Hydraulic Cements
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Significance and Use
3.1 This test method is of primary significance in determining the acceptability of aggregate with respect to the requirements
of Specification C33.
4. Apparatus
4.1 Balance—A balance or scale accurate to within 0.1 % of the mass of the test sample at any point within the range of use.
Balances shall conform to the accuracy of the applicable sections of Specification C1005.
4.2 Containers—Rust-resistant containers of a size and shape that will permit the spreading of the sample on the bottom in a
thin layer.
4.3 Sieves—Sieves conforming to Specification E11.
4.4 Drying Oven—An oven providing free circulation of air and capable of maintaining a temperature of 110 6 5°C (230 5 °C
[230 6 9°F). 10 °F].
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. 1, 2004. Published August 2004. Originally approved in 1938. Last previous edition approved in 1997 as C142–97. DOI:
10.1520/C0142-97R04.
Current edition approved Dec. 15, 2010. Published January 2011. Originally approved in 1938. Last previous edition approved in 2004 as C142–97(2004). DOI:
10.1520/C0142_C0142M-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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 ----------------------
C142/C142M – 10
5. Samples
5.1 Aggregate for this test method shall consist of the material remaining after completion of testing in accordance with Test
Method C117. To provide the quantities designated in 5.3 and 5.4, it may be necessary to combine material from more than one
test by Test Method C117.
5.2 Dry the aggregate to substantially constant mass at a temperature of 110 6 5°C (230 5 °C [230 6 9°F). 10 °F].
5.3 Test samples of fine aggregate shall consist of the particles coarser than a 1.18-mm (No. 16) sieve and shall have a mass
not less than 25 g.
5.4 Separate the test samples of coarse aggregate into different sizes, using the following sieves: 4.75-mm (No. 4), 9.5-mm
3 3 1
( ⁄8-in.), 19.0
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.