ASTM D448-12(2017)

Standard Classification for Sizes of Aggregate for Road and Bridge Construction

SIGNIFICANCE AND USE
4.1 Some contract documents specify certain aggregate sizes for specific uses or may suggest one or more of these sizes as appropriate for the preparation of various end-product mixtures. In some cases, closer limits on variability of the aggregate grading are required.
SCOPE
1.1 This classification defines aggregate size number designations and standard size ranges for mechanical sieve analyses of coarse aggregate and screenings for use in the construction and maintenance of various types of highways and bridges.  
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
Note 1: Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information only and does not represent a different standard sieve size.  
1.3 The text of this classification 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 classification.  
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.

General Information

• Status: Historical
• Publication Date: 30-Sep-2017
• ICS: 93.080.10 - Road construction
• Technical Committee: D04 - Road and Paving Materials
• Drafting Committee: D04.50 - Aggregate Specifications

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D448 −12 (Reapproved 2017)
Standard Classification for
1
Sizes of Aggregate for Road and Bridge Construction
This standard is issued under the fixed designation D448; 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 U.S. Department of Defense.
1. Scope D8 Terminology Relating to Materials for Roads and Pave-
ments
1.1 This classification defines aggregate size number desig-
D75 Practice for Sampling Aggregates
nations and standard size ranges for mechanical sieve analyses
E11 Specification for Woven Wire Test Sieve Cloth and Test
of coarse aggregate and screenings for use in the construction
Sieves
and maintenance of various types of highways and bridges.
1.2 Units—The values stated in SI units are to be regarded
3. Terminology
as standard. No other units of measurement are included in this
3.1 For definitions of terms, see Terminology D8.
standard.
NOTE 1—Sieve size is identified by its standard designation in Speci-
4. Significance and Use
fication E11. The alternative designation given in parentheses is for
4.1 Some contract documents specify certain aggregate
information only and does not represent a different standard sieve size.
sizes for specific uses or may suggest one or more of these
1.3 The text of this classification references notes and
sizes as appropriate for the preparation of various end-product
footnotes which provide explanatory material. These notes and
mixtures. In some cases, closer limits on variability of the
footnotes (excluding those in tables and figures) shall not be
aggregate grading are required.
considered as requirements of the classification.
1.4 This international standard was developed in accor-
5. Manufacture
dance with internationally recognized principles on standard-
5.1 The standard sizes of aggregate described in this clas-
ization established in the Decision on Principles for the
sification are manufactured by means of any suitable process
Development of International Standards, Guides and Recom-
used to separate raw material into the desired size ranges.
mendations issued by the World Trade Organization Technical
Production of standard sizes by blending two or more different
Barriers to Trade (TBT) Committee.
components is permitted.
2. Referenced Documents
2
6. Standard Sizes
2.1 ASTM Standards:
C136 Test Method for Sieve Analysis of Fine and Coarse 6.1 Standard aggregate sizes shall conform to the require-
Aggregates
ments prescribed in Table 1 for the size number specified.
Conformance shall be determined by means of laboratory
1 sieves having square openings and conforming to Specification
This classification is under the jurisdiction of ASTM Committee D04 on Road
E11.
and Paving Materials and is the direct responsibility of Subcommittee D04.50 on
Aggregate Specifications.
Current edition approved Oct. 1, 2017. Published October 2017. Originally
7. Basis of Classification
approved in 1937. Last previous edition approved in 2012 as D448 – 12. DOI:
10.1520/D0448-12R17.
7.1 Classification of an aggregate is based upon the size
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
number designation and size ranges shown in Table 1. Aggre-
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
gate shall be sampled in accordance with Practice D75 and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tested for grading by Test Method C136.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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D448−12 (2017)
2
TABLE 1 Standard Sizes of Processed Aggregate
Amounts Finer than Each Laboratory Sieve (Square Openings), mass percent
Nominal Size,
90- 300- 150-
Size
100- 75- 4.75- 2.36- 1.18-
Square
mm 63-mm 50-mm 37.5-mm 25.0-mm 19.0-mm 12.5-mm 9.5-mm µm µm
Number
mm mm mm mm mm
Openings 1 1 1 3 1 3
(3 ⁄2-in.) (2 ⁄2-in.) (2-in.) (1 ⁄2-in.) (1-in.) ( ⁄4-in.) ( ⁄2-in.) ( ⁄8-in.) (No. (No.
(4-in.) (3-in.) (No. 4) (No. 8) (No. 16)
50) 100)
1 90 to 37.5-mm 100 90 to 100 . 25 to 60 . 0 to 15 . 0 to 5 . . . . . . .
1 1
(3 ⁄2 to 1 ⁄2-in.)
2 63 to 37.5-mm . . 100 90 to 100 35 to 70 0 to 15 . 0 to 5 . . . . . . .
1 1
(2 ⁄2 to 1 ⁄2-in.)
24 63 to 19.0-mm . . 100 90 to 100 . 25 to 60 . 0 to 10 0 to 5 . . . . . .
1 3
(2 ⁄2 to ⁄4-in.)
3 50 to 25.0-mm . . . 100 90 to 100 35 to 70 0 to 15 . 0 to 5 . . . . . .
(2 to 1-in.)
357 50 to 4.75-mm . .
...

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: D448 − 12 D448 − 12 (Reapproved 2017)
Standard Classification for
1
Sizes of Aggregate for Road and Bridge Construction
This standard is issued under the fixed designation D448; 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 U.S. Department of Defense.
1. Scope
1.1 This classification defines aggregate size number designations and standard size ranges for mechanical sieve analyses of
coarse aggregate and screenings for use in the construction and maintenance of various types of highways and bridges.
1.2 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
NOTE 1—Sieve size is identified by its standard designation in Specification E11. The alternative designation given in parentheses is for information
only and does not represent a different standard sieve size.
1.3 The text of this classification 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 classification.
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
2.1 ASTM Standards:
C136 Test Method for Sieve Analysis of Fine and Coarse Aggregates
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 Definition For definitions of terms, see Terminology D8.
4. Significance and Use
4.1 Some contract documents specify certain aggregate sizes for specific uses or may suggest one or more of these sizes as
appropriate for the preparation of various end-product mixtures. In some cases, closer limits on variability of the aggregate grading
are required.
5. Manufacture
5.1 The standard sizes of aggregate described in this classification are manufactured by means of any suitable process used to
separate raw material into the desired size ranges. Production of standard sizes by blending two or more different components is
permitted.
6. Standard Sizes
6.1 Standard aggregate sizes shall conform to the requirements prescribed in Table 1 for the size number specified.
Conformance shall be determined by means of laboratory sieves having square openings and conforming to Specification E11.
1
This classification 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 Dec. 1, 2012Oct. 1, 2017. Published December 2012October 2017. Originally approved in 1937. Last previous edition approved in 20082012
as D448 – 08.D448 – 12. DOI: 10.1520/D0448-12.10.1520/D0448-12R17.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D448 − 12 (2017)
2
TABLE 1 Standard Sizes of Processed Aggregate
Amounts Finer than Each Laboratory Sieve (Square Openings), mass percent
Nominal Size,
90- 300- 150-
Size
100- 75- 4.75- 2.36- 1.18-
Square
mm 63-mm 50-mm 37.5-mm 25.0-mm 19.0-mm 12.5-mm 9.5-mm μm μm
Number
mm mm mm mm mm
Openings 1 1 1 3 1 3
(3 ⁄2-in.) (2 ⁄2-in.) (2-in.) (1 ⁄2-in.) (1-in.) ( ⁄4-in.) ( ⁄2-in.) ( ⁄8-in.) (No. (No.
(4-in.) (3-in.) (No. 4) (No. 8) (No. 16)
50) 100)
1 90 to 37.5-mm 100 90 to 100 . 25 to 60 . 0 to 15 . 0 to 5 . . . . . . .
1 1
(3 ⁄2 to 1 ⁄2-in.)
2 63 to 37.5-mm . . 100 90 to 100 35 to 70 0 to 15 . 0 to 5 . . . . . . .
1 1
(2 ⁄2 to 1 ⁄2-in.)
24 63 to 19.0-mm . . 100 90 to 100 . 25 to 60 . 0 to 10 0 to 5 . . . . . .
1 3
(2 ⁄2 to ⁄4-in.)
3 50 to 25.0-mm . . . 10
...