ASTM D6092-97(2008)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:D6092 −97(Reapproved 2008)
Standard Practice for
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 2. Referenced Documents
1.1 This practice covers size designations and maximum 2.1 ASTM Standards:
ranges in mass or gradation for standard sizes for riprap, spalls, D653 Terminology Relating to Soil, Rock, and Contained
or bedding, or both, used for slope protection of dam Fluids
embankments, streambank erosion control, bridge piers and D4992 Practice for Evaluation of Rock to be Used for
abutments. Sizes used for outer harbor structures such as Erosion Control
breakwalls, revetments, confined diked disposal structures D5519 Test Methods for Particle Size Analysis of Natural
(heretoforedescribedasarmorstone,coverstone,ordimension and Man-Made Riprap Materials
stone) for which stone sizes range between 5 and 25 tons, or
3. Terminology
that require cut dimensions for layed-up structures are beyond
3.1 Definitions—Definitions of other terms in this guide are
the scope of this practice.
listed in Terminology D653.
1.2 The values stated in inch-pound units are to be regarded
3.2 Definitions of Terms Specific to This Standard:
as standard. The values given in parentheses are mathematical
3.2.1 filter/bedding stone—stone, filter stone consisting of
conversions to SI units that are provided for information only
crushed stone ranging in size from ⁄4 in. (19 mm) to number 40
and are not considered standard.
sieve size, and bedding stone (often referred to as “spalls”)
1.3 This standard does not purport to address all of the
consisting of crushed stone ranging in size from 6 in. (152 mm)
safety concerns, if any, associated with its use. It is the
(maximum) to ⁄2 in. (12.7 mm) minimum. Filter and bedding
responsibility of the user of this standard to establish appro-
may be placed in two layers beneath the riprap, that is, a filter
priate safety and health practices and determine the applica-
layer 8 to 10 in. (203 to 254 mm) thick and a bedding thickness
bility of regulatory limitations prior to use.
of 6 to 8 in. (152 to 203 mm).
1.4 This practice offers an organized collection of informa-
3.2.2 geotextiles—suitable geotextile fabrics that meet the
tion or a series of options and does not recommend a specific
design requirements may be used instead of the above bedding
course of action. This document cannot replace education or
and spalls. Suitable cover thickness maybe required.
experience and should be used in conjunction with professional
judgment. Not all aspects of this practice may be applicable in
3.2.3 gradation—the proportions by mass of stones distrib-
all circumstances. This ASTM standard is not intended to
uted within specified ranges between maximum and minimum
represent or replace the standard of care by which the
limits.
adequacy of a given professional service must be judged, nor
3.2.4 riprap—stone materials generally less than two tons in
should this document be applied without consideration of a
weight, specially selected and graded, and when properly
project’s many unique aspects. The word “Standard” in the
placed prevents erosion through minor wave action, or strong
title of this document means only that the document has been
currents and thereby preserves the shape of a surface, slope, or
approved through the ASTM consensus process.
the underlying structure.
3.2.5 standard size designation—one of a group of stones
with specified gradation limits.
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. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved June 1, 2008. Published July 2008. Originally approved contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
in 1997. Last previous edition approved in 2003 as D6092 – 97 (2003). DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6092-97R08. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D6092−97 (2008)
A
TABLE 1 Standard Sizes for Riprap
Size Designation R-1500 R-700 R-300 R-150 R-60 R-20
B
Particle Mass Percent Lighter Than the Mass Specified
C
Pounds (Kilogram)
3000 (1400) 100 . . . . . . . . . . . . . . .
1500 (680) 50 to 100 100 . . . . . . . . . . . .
1000 (450) . . . . . . . . . . . . . . . . . .
700 (320) 15 to 50 50 to 100 100 . . . . . . . . .
500 (230) . . . . . . . . . . . . . . . . . .
300 (140) . . . 15 to 50 50 to 100 100 . . . . . .
250 (110) 0to15 . . . . .
150 (68) . . . . . . 15 to 50 50 to 100 100 . . .
60 (27) . . . 0 to 15 . . . 15 to 50 50 to 100 . . .
45 (20) . . 0to15 . . 100
30 (14) . . . . 15to50 .
20 (9.1) . . . 0to15 . 50to100
10 (4.5) . . . . 0to15 15to50
2 (0.9) . . . . . 0to15
A
Revised Nov 14, 1995, and modified to conform to the gradations proposed by the producers and the National Crushed Stone Association.
B
Established by determining the mass of the individual stone particles.
C
Rounded to two figures from conversion of inch-pound (U.S. Customary) units.
TABLE 2 Effect of Specific Gravity on the Weight of Stone of Various Shapes (Pounds)
Maximum Cube Sphere
Dimension, in. Specific Gravity Specific Gravity
. . . 2.60 2.65 2.70 2.75 2.60 2.65 2.70 2.75
42 6950 7090 7225 7350 3640 3712 3780 3850
30 2535 2584 2635 2680 1325 1353 1380 1405
20 750 766 780 390 390 401 410 415
12 160 165 168 172 85 87 88 90
6 20 20.5 21 21.5 10 11 11 11
Prolate Sphere Average of Cube and Sphere
Specific Gravity Specific Gravity
. . . 2.60 2.65 2.70 2.75 2.60 2.65 2.70 2.75
42 3238 3300 3362 3424 5300 5401 5500 5600
30 1180 1202.5 1225 1248 1930 1968 2005 2845
20 350 356 363 370 570 583 595 405
12 75 77 78 80 123 126 128 131
6 9.4 9.6 9.8 10 15 16 16 16
4. Summary of Practice gradations.The design team must recognize the fact that not all
sources are capable or willing to produce the required grada-
4.1 The design team shall establish the size of the mass of
tions. Only those sources listed by the design team should be
graded quarry stone using acceptable design criteria. If design
considered
...