ASTM D692/D692M-20

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Designation: D692/D692M − 15 D692/D692M − 20
Standard Specification for
Coarse Aggregate for BituminousAsphalt Paving Mixtures
This standard is issued under the fixed designation D692/D692M; 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 specification covers crushed stone, crushed hydraulic-cement concrete, crushed blast-furnace slag, crushed gravel,
crushed expanded shale, crushed expanded clay, and crushed expanded slate suitable for use in bituminousasphalt paving mixtures,
as described in SpecificationsSpecification D3515 or D4215.
NOTE 1—Other slags having demonstrated a satisfactory service record may be used.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformancenonconformance with the standard.
1.3 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes
(excluding those in tables and figures) shall not be considered as requirements of the standard.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
C29/C29M Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
C88C88/C88M Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
C125 Terminology Relating to Concrete and Concrete Aggregates
C131C131/C131M Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the
Los Angeles Machine
C136C136/C136M Test Method for Sieve Analysis of Fine and Coarse Aggregates
C294 Descriptive Nomenclature for Constituents of Concrete Aggregates
D8 Terminology Relating to Materials for Roads and Pavements
D75D75/D75M Practice for Sampling Aggregates
D448 Classification for Sizes of Aggregate for Road and Bridge Construction
D3319 Practice for the Accelerated Polishing of Aggregates Using the British Wheel
D3515 Specification for Hot-Mixed, Hot-Laid Bituminous Paving Mixtures (Withdrawn 2009)
D3665 Practice for Random Sampling of Construction Materials
D4215 Specification for Cold-Mixed, Cold-Laid Bituminous Paving Mixtures
D5821 Test Method for Determining the Percentage of Fractured Particles in Coarse Aggregate
3. Terminology
3.1 For defining aggregate types, see Descriptive Nomenclature C294, and TerminologyTerminologies D8 and C125.
3.2 Definitions:
This specification is under the jurisdiction of ASTM Committee D04 on Road and Paving Materials and is the direct responsibility of Subcommittee D04.50 on Aggregate
Specifications.
Current edition approved June 1, 2015May 1, 2020. Published July 2015May 2020. Originally approved in 1942. Last previous edition approved in 20142015 as
D692/D692M – 09 (2014).D692/D692M – 15. DOI: 10.1520/D0692_D0692M-15.10.1520/D0692_D0692M-20.
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volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
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D692/D692M − 20
3.2.1 expanded shale, n; expanded clay, n; expanded slate, n—the product resulting from the expanding of selected materials
(shale, clay, or slate) in a rotary kiln at temperatures over 1000°C [1832°F].1000 °C [1832 °F].
4. Ordering Information
4.1 Orders for the material under this specification shall include the following information:
4.1.1 The specification designation and year of issue.
4.1.2 The size to be furnished (see 5.2).
4.1.3 The quantity required.
4.1.4 Use of the coarse aggregate, whether for conventional mixtures or open-graded friction course mixtures (see 5.4), and
whether for surface courses or base courses (see 5.7),).
4.1.5 In the case of sulfate soundness tests (5.6), which salt is to be used.
4.1.6 Any special requirements.
5. Physical Requirements
5.1 General—The coarse aggregate shall consist of hard, strong, durable pieces, free of coherent coatings and conforming to
the requirements of this specification.
5.2 Grading:
5.2.1 The coarse aggregate grading shall conform to the requirements of Classification D448 for the size number designated,
or to another grading as stated in the order (see Note 2).
NOTE 2—The coarse aggregate grading to be furnished is dependent upon the desired composition of the paving mixture, and whether the grading to
be used in the mixture is achieved with or without blending. Other coarse aggregate gradings may be used provided that the combined aggregate and filler,
when used, will produce a paving mixture that provides the desired characteristics.
5.2
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