ASTM D5821-13

Standard Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate

SIGNIFICANCE AND USE
4.1 Some specifications contain requirements relating to percentage of fractured particles in coarse aggregates. One purpose of such requirements is to maximize shear strength by increasing inter-particle friction in either bound or unbound aggregate mixtures. Another purpose is to provide stability for surface treatment aggregates and to provide increased friction and texture for aggregates used in pavement surface courses. This test method provides a standard procedure for determining the acceptability of coarse aggregate with respect to such requirements.  
4.2 Specifications differ as to the number of fractured faces required on a fractured particle, and they also differ as to whether percentage by mass or percentage by particle count shall be used. If the specification does not specify, use the criterion of at least one fractured face and calculate percentage by mass.
SCOPE
1.1 This test method covers the determination of the percentage, by mass or by count, of a coarse aggregate sample that consists of fractured particles meeting specified requirements.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided 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

• Status: Historical
• Publication Date: 30-Nov-2013
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.51 - Aggregate Tests

Relations

• Replaces: ASTM D5821-01(2006) - Standard Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
• Effective Date: 01-Dec-2013
• Referred By: ASTM D1139/D1139M-22 - Standard Specification for Aggregate for Single or Multiple Asphalt Surface Treatments
• Effective Date: 01-Dec-2013
• Referred By: ASTM E2992/E2992M-17 - Standard Test Method for Evaluating Response Robot Mobility: Traverse Sand Terrain
• Effective Date: 01-Dec-2013
• Referred By: ASTM D5106-22 - Standard Specification for Steel Slag Aggregates for Asphalt Paving Mixtures
• Effective Date: 01-Dec-2013
• Referred By: ASTM D692/D692M-20 - Standard Specification for Coarse Aggregate for Asphalt Paving Mixtures
• Effective Date: 01-Dec-2013
• Referred By: ASTM C12-22a - Standard Practice for Installing Vitrified Clay Pipe Lines
• Effective Date: 01-Dec-2013
• Referred By: ASTM D7564/D7564M-16 - Standard Practice for Construction of Asphalt-Rubber Cape Seal
• Effective Date: 01-Dec-2013
• Referred By: ASTM D3839-14(2019) - Standard Guide for Underground Installation of “Fiberglass” (Glass-Fiber Reinforced Thermosetting-Resin) Pipe
• Effective Date: 01-Dec-2013
• Referred By: ASTM D6932/D6932M-21 - Standard Guide for Materials and Construction of Open-Graded Friction Course Plant Asphalt Mixtures
• Effective Date: 01-Dec-2013
• Referred By: ASTM D7064/D7064M-21 - Standard Practice for Open-Graded Friction Course (OGFC) Asphalt Mixture Design
• Effective Date: 01-Dec-2013
• Referred By: ASTM E2991/E2991M-17 - Standard Test Method for Evaluating Response Robot Mobility: Traverse Gravel Terrain
• Effective Date: 01-Dec-2013
• Referred By: ASTM D2940/D2940M-20 - Standard Specification for Graded Aggregate Material for Bases or Subbases for Highways or Airports
• Effective Date: 01-Dec-2013
• Referred By: ASTM D6155-19 - Standard Specification for Nontraditional Coarse Aggregates for Asphalt Paving Mixtures
• Effective Date: 01-Dec-2013
• Referred By: ASTM D8-22a - Standard Terminology Relating to Materials for Roads and Pavements
• Effective Date: 01-Dec-2013

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: D5821 − 13
Standard Test Method for
Determining the Percentage of Fractured Particles in Coarse
1
Aggregate
This standard is issued under the fixed designation D5821; 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 3.1.1.1 Discussion—for this standard, a face will be consid-
ered a “fractured face” only if it has a projected area at least as
1.1 This test method covers the determination of the
large as one quarter of the maximum projected area (maximum
percentage, by mass or by count, of a coarse aggregate sample
cross-sectional area) of the particle (this excludes small nicks,
that consists of fractured particles meeting specified require-
see Fig. 1) and the face has sharp or slightly blunt edges.
ments.
3.1.2 fractured particle, n—a particle of aggregate having at
1.2 The values stated in SI units are to be regarded as the
least the minimum number of fractured faces specified (usually
standard. The values in parentheses are provided for informa-
one or two).
tion only.
1.3 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 Some specifications contain requirements relating to
responsibility of the user of this standard to establish appro-
percentage of fractured particles in coarse aggregates. One
priate safety and health practices and determine the applica-
purpose of such requirements is to maximize shear strength by
bility of regulatory limitations prior to use.
increasing inter-particle friction in either bound or unbound
aggregate mixtures.Another purpose is to provide stability for
2. Referenced Documents
surface treatment aggregates and to provide increased friction
2
2.1 ASTM Standards:
and texture for aggregates used in pavement surface courses.
C136 Test Method for Sieve Analysis of Fine and Coarse
Thistestmethodprovidesastandardprocedurefordetermining
Aggregates
the acceptability of coarse aggregate with respect to such
C702 PracticeforReducingSamplesofAggregatetoTesting
requirements.
Size
4.2 Specifications differ as to the number of fractured faces
D8 Terminology Relating to Materials for Roads and Pave-
required on a fractured particle, and they also differ as to
ments
whether percentage by mass or percentage by particle count
D75 Practice for Sampling Aggregates
shall be used. If the specification does not specify, use the
E11 Specification for Woven Wire Test Sieve Cloth and Test
criterion of at least one fractured face and calculate percentage
Sieves
by mass.
3. Terminology
5. Apparatus
3.1 Definitions:
5.1 Balance—A balance or scale accurate and readable to
3.1.1 fractured face, n—an angular, rough, or broken sur-
within 0.1 % of the test sample mass at any point within the
face of an aggregate particle created by crushing, by other
range of use.
artificial means, or by nature (see Terminology D8).
5.2 Sieves—Sieves conforming to Specification E11.
5.3 Splitter—A sample splitter suitable for dividing field
1
This test method is under the jurisdiction of ASTM Committee D04 on Road
samples into test portion sizes in accordance with Practice
and Paving Materials and is the direct responsibility of Subcommittee D04.51 on
C702.
Aggregate Tests.
Current edition approved Dec. 1, 2013. Published January 2014. Originally
5.4 Spatula—A spatula or similar tool to aid in sorting
approved in 1995. Last previous edition approved in 2006 as D5821 – 01 (2006).
aggregate particles.
DOI: 10.1520/D5821-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6. Sampling
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.1 Sample the aggregate in accordance with Practice D75.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5821 − 13
FIG. 1 Schematic of a Fractured Particle with One Fractured Face
7. Sample Preparation lated based on the mass of each of the portions to reflect the
total percentage of fractured particles in the entire sample.
7.1 Dry the sample sufficiently to obtain a clean separation
of fine and coarse material in the sieving operation. Sieve the
8. Procedure
sampleoverthe4.75-mm(No.4)sieve,orotherspecifiedsieve
8.1 Wash the sample over the sieve designated for determi-
for retaining material for this test, in accordance with Test
nation of fractured particles to remove any remaining fine
Method C136 and then reduce th
...

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.
Designation: D5821 − 01 (Reapproved 2006) D5821 − 13
Standard Test Method for
Determining the Percentage of Fractured Particles in Coarse
1
Aggregate
This standard is issued under the fixed designation D5821; 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
1.1 This test method covers the determination of the percentage, by mass or by count, of a coarse aggregate sample that consists
of fractured particles meeting specified requirements.
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are provided 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:
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
C702 Practice for Reducing Samples of Aggregate to Testing Size
D8 Terminology Relating to Materials for Roads and Pavements
D75 Practice for Sampling Aggregates
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Terminology
3.1 Definitions:
3.1.1 fractured face, n—an angular, rough, or broken surface of an aggregate particle created by crushing, by other artificial
means, or by nature (see Terminology D8).
1
This test method is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.51 on Aggregate
Tests.
Current edition approved June 1, 2006Dec. 1, 2013. Published June 2006January 2014. Originally approved in 1995. Last previous edition approved in 20012006 as
D5821 - 01.D5821 – 01 (2006). DOI: 10.1520/D5821-01R06.10.1520/D5821-13.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3.1.1.1 Discussion—
for this standard, a face will be considered a “fractured face” only if it has a projected area at least as large as one quarter of the
maximum projected area (maximum cross-sectional area) of the particle (this excludes small nicks, see Fig. 1) and the face has
sharp or slightly blunt edges.
3.1.2 fractured particle, n—a particle of aggregate having at least the minimum number of fractured faces specified (usually one
or two).
4. Significance and Use
4.1 Some specifications contain requirements relating to percentage of fractured particles in coarse aggregates. One purpose of
such requirements is to maximize shear strength by increasing inter-particle friction in either bound or unbound aggregate
mixtures. Another purpose is to provide stability for surface treatment aggregates and to provide increased friction and texture for
aggregates used in pavement surface courses. This test method provides a standard procedure for determining the acceptability of
coarse aggregate with respect to such requirements.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5821 − 13
FIG. 1 Schematic of a Fractured Particle with One Fractured Face
4.2 Specifications differ as to the number of fractured faces required on a fractured particle, and they also differ as to whether
percentage by mass or percentage by particle count shall be used. If the specification does not specify, use the criterion of at least
one fractured face and calculate percentage by mass.
5. Apparatus
5.1 Balance—A balance or scale accurate and readable to within 0.1 % of the test sample mass at any point within the range
of use.
5.2 Sieves—Sieves conforming to Specification E11.
5.3 Splitter—A sample splitter suitable for dividing field samples into test portion sizes in accordance with Practice C702.
5.4 Spatula—A spatula or similar tool to aid in sorting aggregate particles.
6. Sampling
6.1 Sample the aggregate in accordance with Practice D75.
7. Sample Preparation
7.1 Dry the sample sufficiently to obtain a clean separation of fine and coarse material in the sieving operation. Sieve the sample
over the 4.75-mm (No. 4)
...