ASTM C535-03e1

Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

SIGNIFICANCE AND USE
The test has been widely used as an indicator of the relative quality or competence of various sources of aggregate having similar mineral compositions. The results do not automatically permit valid comparisons to be made between sources distinctly different in origin, composition, or structure. Assign specification limits with extreme care in consideration of available aggregate types and their performance history in specific end uses.
SCOPE
1.1 This test method covers testing sizes of coarse aggregate larger than 19 mm (3/4 in.) for resistance to degradation using the Los Angeles testing machine (Note 1).
Note 1—A procedure for testing coarse aggregate smaller than 37.5 mm (11/2 in.) is covered in Test Method C 131.
1.2 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.
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-Mar-2003
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: C09 - Concrete and Concrete Aggregates
• Drafting Committee: C09.20 - Aggregates

Relations

• Replaces: ASTM C535-03 - Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
• Effective Date: 10-Mar-2003
• Replaced By: ASTM C535-09 - Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
• Effective Date: 01-Jul-2009
• Referred By: ASTM D8038-16(2022)e1 - Standard Practice for Reclamation of Recycled Aggregate Base (RAB) Material
• Effective Date: 10-Mar-2003
• Referred By: ASTM C131/C131M-20 - Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
• Effective Date: 10-Mar-2003
• Referred By: ASTM C33/C33M-23 - Standard Specification for Concrete Aggregates
• Effective Date: 10-Mar-2003
• Referred By: ASTM C637-20 - Standard Specification for Aggregates for Radiation-Shielding Concrete
• Effective Date: 10-Mar-2003
• Referred By: ASTM D4992-22 - Standard Practice for Evaluation of Rock to be Used for Erosion Control
• Effective Date: 10-Mar-2003

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
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Designation:C535–03
Standard Test Method for
Resistance to Degradation of Large-Size Coarse Aggregate
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by Abrasion and Impact in the Los Angeles Machine
This standard is issued under the fixed designation C 535; 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.
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´ NOTE—Section 8.1 was corrected editorially July 2003.
1. Scope* E11 Specification for Wire Cloth and Sieves for Testing
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Purposes
1.1 Thistestmethodcoverstestingsizesofcoarseaggregate
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larger than 19 mm ( ⁄4 in.) for resistance to degradation using
3. Terminology
the Los Angeles testing machine (Note 1).
3.1 For definitions of terms used in this test method, refer to
NOTE 1—A procedure for testing coarse aggregate smaller than 37.5
Terminology C 125.
1
mm (1 ⁄2 in.) is covered in Test Method C 131.
4. Summary of Test Method
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4.1 This test is a measure of degradation of mineral aggre-
responsibility of the user of this standard to establish appro- gates of standard gradings resulting from a combination of
priate safety and health practices and determine the applica-
actions including abrasion or attrition, impact, and grinding in
bility of regulatory limitations prior to use. a rotating steel drum containing 12 steel spheres. As the drum
1.3 The values stated in SI units are to be regarded as the
rotates, a shelf plate picks up the sample and the steel spheres,
standard. The inch-pound values given in parentheses are for carrying them around until they are dropped to the opposite
information only.
side of the drum, creating an impact-crushing effect. The
contents then roll within the drum with an abrading and
2. Referenced Documents
grinding action until the shelf plate picks up the sample and the
2.1 ASTM Standards:
steel spheres, and the cycle is repeated. After the prescribed
C 125 Terminology Relating to Concrete and Concrete
numberofrevolutions,thecontentsareremovedfromthedrum
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Aggregates
and the aggregate portion is sieved to measure the degradation
C 131 Test Method for Resistance to Degradation of Small-
as percent loss.
Size Coarse Aggregate by Abrasion and Impact in the Los
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5. Significance and Use
Angeles Machine
C 136 Test Method for Sieve Analysis of Fine and Coarse
5.1 The test has been widely used as an indicator of the
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Aggregates relative quality or competence of various sources of aggregate
C 670 Practice for Preparing Precision and Bias Statements having similar mineral compositions. The results do not
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for Test Methods for Construction Materials
automatically permit valid comparisons to be made between
C 702 Practice for Reducing Samples of Aggregate to sources distinctly different in origin, composition, or structure.
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Testing Size
Assign specification limits with extreme care in consideration
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D75 Practice for Sampling Aggregates of available aggregate types and their performance history in
specific end uses.
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This test method is under the jurisdiction of ASTM Committee C09 on 6. Apparatus
Concrete and ConcreteAggregates and is the direct responsibility of Subcommittee
6.1 The Los Angeles Machine shall conform to the require-
C09.20 on Normal Weight Aggregates.
ments of Test Method C 131.
Current edition approved March 10, 2003. Published April 2003. Originally
approved in 1964. Last previous edition approved in 2001 as C 535-01.
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Annual Book of ASTM Standards, Vol 04.02.
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4
Annual Book of ASTM Standards, Vol 04.03.
Annual Book of ASTM Standards, Vol 14.02.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C535–03
6.1.1 The operation and maintenance of the machine shall However, in the case of referee testing, the washing procedure
be as prescribed in Test Method C 131. shall be performed. Elimination of washing after test will
6.2 Sieves, conforming to SpecificationE11. seldom reduce the measured loss by more than about 0.2 % of
6.3 Balance—A balance or scale accurate within 0.1 % of the original sample mass.
test load over the range required for this test
NOTE 3—Valuableinformationconcerningtheuniformityofthesample
6.4 Charge—The charge (Note 2) shall consist of 12 steel
under test may be obtained by determining the loss after 200 revolutions.
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spheres averaging approximately 47 mm (1 ⁄32 in.) in diam-
This loss should
...