ASTM D5821-01

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

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: 09-Aug-2001
• ICS: 91.100.30 - Concrete and concrete products
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.51 - Aggregate Tests

Relations

• Replaces: ASTM D5821-95 - Standard Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
• Effective Date: 10-Aug-2001
• Replaced By: ASTM D5821-01(2006) - Standard Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
• Effective Date: 01-Jun-2006
• Referred By: ASTM D6932/D6932M-21 - Standard Guide for Materials and Construction of Open-Graded Friction Course Plant Asphalt Mixtures
• Effective Date: 10-Aug-2001
• Referred By: ASTM D7064/D7064M-21 - Standard Practice for Open-Graded Friction Course (OGFC) Asphalt Mixture Design
• Effective Date: 10-Aug-2001
• Referred By: ASTM C12-22a - Standard Practice for Installing Vitrified Clay Pipe Lines
• Effective Date: 10-Aug-2001
• Referred By: ASTM E2991/E2991M-17 - Standard Test Method for Evaluating Response Robot Mobility: Traverse Gravel Terrain
• Effective Date: 10-Aug-2001
• Referred By: ASTM D7564/D7564M-16 - Standard Practice for Construction of Asphalt-Rubber Cape Seal
• Effective Date: 10-Aug-2001
• Referred By: ASTM D2940/D2940M-20 - Standard Specification for Graded Aggregate Material for Bases or Subbases for Highways or Airports
• Effective Date: 10-Aug-2001
• Referred By: ASTM D3839-14(2019) - Standard Guide for Underground Installation of “Fiberglass” (Glass-Fiber Reinforced Thermosetting-Resin) Pipe
• Effective Date: 10-Aug-2001
• Referred By: ASTM E2992/E2992M-17 - Standard Test Method for Evaluating Response Robot Mobility: Traverse Sand Terrain
• Effective Date: 10-Aug-2001
• Referred By: ASTM D6155-19 - Standard Specification for Nontraditional Coarse Aggregates for Asphalt Paving Mixtures
• Effective Date: 10-Aug-2001
• Referred By: ASTM D5106-22 - Standard Specification for Steel Slag Aggregates for Asphalt Paving Mixtures
• Effective Date: 10-Aug-2001
• Referred By: ASTM D1139/D1139M-22 - Standard Specification for Aggregate for Single or Multiple Asphalt Surface Treatments
• Effective Date: 10-Aug-2001
• Referred By: ASTM D8-22a - Standard Terminology Relating to Materials for Roads and Pavements
• Effective Date: 10-Aug-2001
• Referred By: ASTM D692/D692M-20 - Standard Specification for Coarse Aggregate for Asphalt Paving Mixtures
• Effective Date: 10-Aug-2001

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:D5821–01
Standard Test Method for
Determining the Percentage of Fractured Particles in Coarse
1
Aggregate
This standard is issued under the fixed designation D 5821; 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.
1. Scope as large as one quarter of the maximum projected area
(maximum cross-sectional area) of the particle (this excludes
1.1 This test method covers the determination of the per-
small nicks, see Fig. 1) and the face has sharp or slightly blunt
centage,bymassorbycount,ofacoarseaggregatesamplethat
edges.
consists of fractured particles meeting specified requirements.
3.1.2 fractured particle, n—aparticleofaggregatehavingat
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
2. Referenced Documents aggregate mixtures.Another purpose is to provide stability for
surface treatment aggregates and to provide increased friction
2.1 ASTM Standards:
and texture for aggregates used in pavement surface courses.
C 136 Test Method for Sieve Analysis of Fine and Coarse
2
Thistestmethodprovidesastandardprocedurefordetermining
Aggregates
the acceptability of coarse aggregate with respect to such
C 702 Practice for Reducing Field Samples ofAggregate to
2
requirements.
Testing Size
4.2 Specifications differ as to the number of fractured faces
D 8 Terminology Relating to Materials for Roads and Pave-
3
required on a fractured particle, and they also differ as to
ments
3 whether percentage by mass or percentage by particle count
D 75 Practice for Sampling Aggregates
shall be used. If the specification does not specify, use the
E 11 Specification for Wire-Cloth Sieves for Testing Pur-
4 criterion of at least one fractured face and calculate percentage
poses
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 D 8).
5.2 Sieves—Sieves conforming to Specification E 11.
3.1.1.1 Discussion—for this standard, a face will be con-
5.3 Splitter—A sample splitter suitable for dividing field
sidered a “fractured face” only if it has a projected area at least
samples into test portion sizes in accordance with Practice
C 702.
1
This test method is under the jurisdiction of ASTM Committee D04 on Road 5.4 Spatula—A spatula or similar tool to aid in sorting
and Paving Materials and is the direct responsibility of Subcommittee D04.51 on
aggregate particles.
Aggregate Tests.
Current edition approved Aug. 10, 2001. Published October 2001. Originally
6. Sampling
published as D 5821 - 95. Last previous edition D 5821 - 95.
2
Annual Book of ASTM Standards, Vol 04.02.
6.1 Sample the aggregate in accordance with Practice D 75.
3
Annual Book of ASTM Standards, Vol 04.03.
4
Annual Book of ASTM Standards, Vol 14.02.
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1

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D5821
FIG. 1 Schematic of a Fractured Particle with One Fractured Face
7. Sample Preparation 8. Procedure
8.1 Wash the sample over the sieve designated for determi-
7.1 Dry the sample sufficiently to obtain a clean separation
nation of fractured particles to remove any remaining fine
of fine and coarse material in the sieving operation. Sieve the
material, and dry to constant mass. Determine the mass of the
sampleoverthe4.75-mm(No.4)sieve,orotherspecifiedsieve
test sample, and any subsequent determinations of mass, to the
for retaining material for this test, in accordance with Test
nearest 0.1 % of the original dry sample mass.
MethodC 136andthenreducetheportionretainedonthesieve
8.2 Spread the dried test sample on a clean flat surface large
using a splitter
...