ASTM C117-04

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Designation: C117 − 04
StandardTest Method for
Materials Finer than 75-µm (No. 200) Sieve in Mineral
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Aggregates by Washing
This standard is issued under the fixed designation C117; 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 2.2 AASHTO Standard:
T11 Method of Test for Amount of Material Finer than
1.1 This test method covers the determination of the amount
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0.075-mm Sieve in Aggregate
of material finer than a 75-µm (No. 200) sieve in aggregate by
washing. Clay particles and other aggregate particles that are
3. Summary of Test Method
dispersedbythewashwater,aswellaswater-solublematerials,
3.1 A sample of the aggregate is washed in a prescribed
will be removed from the aggregate during the test.
manner, using either plain water or water containing a wetting
1.2 Two procedures are included, one using only water for
agent, as specified. The decanted wash water, containing
the washing operation, and the other including a wetting agent
suspended and dissolved material, is passed through a 75-µm
to assist the loosening of the material finer than the 75-µm (No.
(No. 200) sieve. The loss in mass resulting from the wash
200) sieve from the coarser material. Unless otherwise
treatment is calculated as mass percent of the original sample
specified, Procedure A (water only) shall be used.
and is reported as the percentage of material finer than a 75-µm
1.3 The values stated in SI units are to be regarded as the (No. 200) sieve by washing.
standard.
4. Significance and Use
1.4 This standard does not purport to address all of the
4.1 Material finer than the 75-µm (No. 200) sieve can be
safety concerns, if any, associated with its use. It is the
separated from larger particles much more efficiently and
responsibility of the user of this standard to establish appro-
completely by wet sieving than through the use of dry sieving.
priate safety and health practices and determine the applica-
Therefore, when accurate determinations of material finer than
bility of regulatory limitations prior to use.
75 µm in fine or coarse aggregate are desired, this test method
2. Referenced Documents
is used on the sample prior to dry sieving in accordance with
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Test Method C136. The results of this test method are included
2.1 ASTM Standards:
in the calculation inTest Method C136, and the total amount of
C136 Test Method for Sieve Analysis of Fine and Coarse
materialfinerthan75µmbywashing,plusthatobtainedbydry
Aggregates
sieving the same sample, is reported with the results of Test
C670 Practice for Preparing Precision and Bias Statements
Method C136. Usually, the additional amount of material finer
for Test Methods for Construction Materials
than 75 µm obtained in the dry sieving process is a small
C702 PracticeforReducingSamplesofAggregatetoTesting
amount. If it is large, the efficiency of the washing operation
Size
should be checked. It could also be an indication of degrada-
D75 Practice for Sampling Aggregates
tion of the aggregate.
E11 Specification for Woven Wire Test Sieve Cloth and Test
Sieves
4.2 Plain water is adequate to separate the material finer
than 75 µm from the coarser material with most aggregates. In
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somecases,thefinermaterialisadheringtothelargerparticles,
This test method is under the jurisdiction of ASTM Committee C09 on
Concrete and Concrete Aggregatesand is the direct responsibility of Subcommittee
such as some clay coatings and coatings on aggregates that
C09.20 on Normal Weight Aggregates.
have been extracted from bituminous mixtures. In these cases,
Current edition approved Aug. 1, 2004. Published August 2004. Originally
the fine material will be separated more readily with a wetting
approved in 1935. Last previous edition approved in 2003 as C117 – 03. DOI:
10.1520/C0117-04. agent in the water.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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Standards volume information, refer to the standard’s Document Summary page on Available from American Association of State Highway and Transportation
the ASTM website. Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
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C117 − 04
5. Apparatus and Materials portion of the test sample. Use this mass as the original dry
mass of the test sample in 10.1.
5.1 Balance—A balance or scale
...