ASTM D6825-02e2
(Guide)Standard Guide for Placement of Riprap Revetments
Standard Guide for Placement of Riprap Revetments
SCOPE
1.1 This guide covers methods to place riprap with associated filters for erosion control purposes. This guide does not recommend a specific course of action because of the diverse methods and procedures that are capable of producing a functional product. This guide identifies favorable riprap qualities and recommends practices best suited to obtain those qualities. The production of rock, use of recycled materials, rock with cut dimensions, and engineering and design is beyond the scope of this guide. Special forms of riprap, including hand placed riprap, grouted riprap, or keyed (plated) riprap that is tamped into place to smooth the surface, are also beyond the scope of this guide.
1.2 This guide 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 guide 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 developed and approved through the ASTM consensus process.
1.3 This standard may involve hazardous operations and equipment. 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 requirements prior to use.
General Information
Relations
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
e2
Designation:D6825–02
Standard Guide for
1
Placement of Riprap Revetments
This standard is issued under the fixed designation D 6825; 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
e NOTE—Section X1.2 was corrected editorially in June 2004.
2
e NOTE—Section X1.2 was corrected editorially in September 2004.
1. Scope D75 Practice for Sampling Aggregates
D 653 Terminology Relating to Soil, Rock, and Contained
1.1 This guide covers methods to place riprap with associ-
Fluids
ated filters for erosion control purposes. This guide does not
D 4992 Practice for Evaluation of Rock to be used for
recommend a specific course of action because of the diverse
Erosion Control
methods and procedures that are capable of producing a
D 5519 Practice for Particle Size Analysis of Natural and
functional product.This guide identifies favorable riprap quali-
Man-Made Riprap Materials
ties and recommends practices best suited to obtain those
D 6092 Practice for Specifying Standard Sizes of Stone for
qualities. The production of rock, use of recycled materials,
Erosion Control
rock with cut dimensions, and engineering and design is
2.2 AASHTO Standard:
beyond the scope of this guide. Special forms of riprap,
M 288–2000 Geotextile Specification for HighwayApplica-
including hand placed riprap, grouted riprap, or keyed (plated)
2
tions
riprap that is tamped into place to smooth the surface, are also
beyond the scope of this guide.
3. Terminology
1.2 This guide offers an organized collection of information
3.1 Terminology used in this guide, which is not included or
oraseriesofoptionsanddoesnotrecommendaspecificcourse
not completely defined in Terminology D 653, is defined
of action. This document cannot replace education or experi-
below.
ence and should be used in conjunction with professional
3.2 Definitions of Terms Specific to This Standard:
judgment. Not all aspects of this guide may be applicable in all
3.2.1 bedding—an aggregate mixture placed below the
circumstances. This ASTM standard is not intended to repre-
riprap. Bedding material is usually sand and gravel sized, but
sent or replace the standard of care by which the adequacy of
may include cobble sized material. If placed without a geotex-
a given professional service must be judged, nor should this
tile, the bedding material may be used as a filter. If placed in
document be applied without consideration of a project’s many
conjunction with a geotextile, the bedding may provide a
unique aspects. The word “Standard” in the title of this
cushionforprotectionofthegeotextileduringriprapplacement
document means only that the document has been developed
andprovideconfinementofthegeotextile.Itispossibletohave
and approved through the ASTM consensus process
more than one bedding layer.
1.3 This standard may involve hazardous operations and
3.2.2 chinking—the practice of filling riprap surface voids
equipment. This standard does not purport to address all of the
with smaller sized rock or aggregate.
safety concerns, if any, associated with its use. It is the
3.2.3 clam shell—a bucket tool that is operated from a
responsibility of the user of this standard to establish appro-
dragline or crane. The bucket is hinged at the top and opens
priate safety and health practices and determine the applica-
like a clam so that rock can be placed without dropping it.
bility of regulatory requirements prior to use.
3.2.4 D —the particle diameter at which x % by weight
x
2. Referenced Documents (dry) of the particles of a particular sample are finer.
3.2.5 filter—any substance, as geotextile or layer of sand/
2.1 ASTM Standards:
aggregate, placed to provide separation and retention of mate-
C33 Specification for Concrete Aggregates
rials, while allowing water to pass.
C 136 Test Method for Sieve Analysis of Fine and Coarse
3.2.6 floater—a individual rock within the riprap layer that
Aggregates
is not interlocked with the surrounding rocks.
1
This guide is under the jurisdiction ofASTM Committee D18 on Soil and Rock
and is the direct responsibility of Subcommittee D18.17 on Rock for Erosion
2
Control. Available from American Association of State Highway and Transportation
Current edition approved August 10, 2002. Published October 2002. Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
e2
D6825–02
3.2.7 maximum aspect ratio—the ratio of the greatest to the 4.2 Revetments provide a facing or linin
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.