ASTM D6092-14

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Designation: D6092 − 97 (Reapproved 2008) D6092 − 14
Standard Practice for
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Specifying Standard Sizes of Stone for Erosion Control
This standard is issued under the fixed designation D6092; 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 Scope*
1.1 This practice covers size designations and maximum ranges in mass or gradation for standard sizes for riprap, spalls, or
bedding, or both, used for slope protection of dam embankments, streambank erosion control, bridge piers and abutments. Sizes
used for outer harbor structures such as breakwalls, revetments, confined diked disposal structures (heretofore described as armor
stone, cover stone, or dimension stone) for which stone sizes range between 5 and 25 tons, or that require cut dimensions for
layed-up structures are beyond the scope of this practice.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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.
1.4 This practice offers an organized collection of information or a series of options and does not recommend a specific course
of action. This document cannot replace education or experience and should be used in conjunction with professional judgment.
Not all aspects of this practice may be applicable in all circumstances. This ASTM standard is not intended to represent or replace
the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied
without consideration of a project’s many unique aspects. The word “Standard” in the title of this document means only that the
document has been approved through the ASTM consensus process.
2. Referenced Documents
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2.1 ASTM Standards:
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D4992 Practice for Evaluation of Rock to be Used for Erosion Control
D5519 Test Methods for Particle Size Analysis of Natural and Man-Made Riprap Materials
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3. Terminology
3.1 Definitions—Definitions of other For definitions of common technical terms in this guide are listed in practice, refer to
Terminology D653.
3.2 Definitions of Terms Specific to This Standard:
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3.2.1 filter/bedding stone—stone/spalls—stone, filter stone consisting of crushed stone ranging in size from ⁄4minus 2.0 in.
(19(50 mm) to number 40 sieve size,No. 100 (150 μm) and bedding stone (oftenstone, often referred to as “spalls”)“spalls,”
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consisting of crushed stone ranging in size from 6 in. (152 mm) (maximum) to minus 6 ⁄2 in. (12.7 mm) minimum. (163 mm) to
No. 16 (1.18 mm). Filter and bedding may be placed in two layers beneath the riprap, prior to the riprap placement, that is, a filter
layer 8 to 10 in. (203(200 to 254250 mm) thick and a bedding thicknesslayer of 6 to 8 in. (152 to 203 mm).(150 to 200 mm) thick.
3.2.2 geotextiles—suitable geotextile fabrics that meet the design requirements may be used instead of the above bedding and
spalls. of, or in conjunction with, the above filter/bedding stone. Suitable cover thickness maybe may be required.
3.2.3 gradation—the proportions by mass of stones distributed within specified ranges between maximum and minimum limits.
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This practice is under the jurisdiction of ASTM Committee D18 on Soil and Rock and is the direct responsibility of Subcommittee D18.17 on Rock for Erosion Control.
Current edition approved June 1, 2008Feb. 1, 2014. Published July 2008March 2014. Originally approved in 1997. Last previous edition approved in 20032008 as
D6092 – 97 (2003).(2008). DOI: 10.1520/D6092-97R08.10.1520/D6092-14.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
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