ASTM C117-03
(Test Method)Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing
Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing
SCOPE
1.1 This test method covers the determination of the amount of material finer than a 75-μm (No. 200) sieve in aggregate by washing. Clay particles and other aggregate particles that are dispersed by the wash water, as well as water-soluble materials, will be removed from the aggregate during the test.
1.2 Two procedures are included, one using only water for the washing operation, and the other including a wetting agent to assist the loosening of the material finer than the 75-μm (No. 200) sieve from the coarser material. Unless otherwise specified, Procedure A (water only) shall be used.
1.3 The values stated in SI units are to be regarded as 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.
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Designation: C 117 – 03
Standard Test Method for
Materials Finer than 75-μm (No. 200) Sieve in Mineral
1
Aggregates by Washing
This standard is issued under the fixed designation C 117; 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 (e) 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
5
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
dispersed by the wash water, as well as water-soluble materials,
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 speci-
treatment is calculated as mass percent of the original sample
fied, 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.
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
4.1 Material finer than the 75-μm (No. 200) sieve can be
responsibility of the user of this standard to establish appro-
separated from larger particles much more efficiently and
priate safety and health practices and determine the applica-
completely by wet sieving than through the use of dry sieving.
bility of regulatory limitations prior to use.
Therefore, when accurate determinations of material finer than
2. Referenced Documents 75 μm in fine or coarse aggregate are desired, this test method
is used on the sample prior to dry sieving in accordance with
2.1 ASTM Standards:
Test Method C 136. The results of this test method are included
C 136 Test Method for Sieve Analysis of Fine and Coarse
2 in the calculation in Test Method C 136, and the total amount
Aggregates
of material finer than 75 μm by washing, plus that obtained by
C 670 Practice for Preparing Precision and Bias Statements
2 dry sieving the same sample, is reported with the results of Test
for Test Methods for Construction Materials
Method C 136. Usually, the additional amount of material finer
C 702 Practice for Reducing Field Samples of Aggregate to
2 than 75 μm obtained in the dry sieving process is a small
Testing Size
3 amount. If it is large, the efficiency of the washing operation
D 75 Practice for Sampling Aggregates
should be checked. It could also be an indication of degrada-
E 11 Specification for Wire Cloth and Sieves for Testing
4
tion of the aggregate.
Purposes
4.2 Plain water is adequate to separate the material finer
than 75 μm from the coarser material with most aggregates. In
1 some cases, the finer material is adhering to the larger particles,
Available from American Association of State Highway and Transportation
Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001. such as some clay coatings and coatings on aggregates that
This test method is under the jurisdiction of ASTM Committee C09 on Concrete
have been extracted from bituminous mixtures. In these cases,
and Concrete Aggregates and is the direct responsibility of Subcommittee C09.20 on
the fine material will be separated more readily with a wetting
Normal Weight Aggregates.
agent in the water.
Current edition approved July 10, 2003. Published October 2003. Originally
approved in 1935. Last previous edition approved in 1995 as C 117 – 95.
2
Annual Book of ASTM Standards, Vol 04.02.
3 5
Annual Book of ASTM Standards, Vol 04.03. Available from American Association of State Highway and Transportation
4
Annual Book of ASTM Standards, Vol 14.02. Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C117–03
5. Apparatus and Materials 8. Procedure A—Washing with Plain Water
5.1 Bal
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