ASTM D6460-00
(Test Method)Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Earthen Channels from Stormwater-Induced Erosion
Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Earthen Channels from Stormwater-Induced Erosion
SCOPE
1.1 This test method covers the guidelines, requirements and procedures for evaluating the ability of Erosion Control Blankets (ECBs) to protect earthen channels from stormwater-induced erosion. Critical elements of this protection are the ability of the ECB to:
1.1.1 Neutralize and absorb the hydraulic force of stormwater, thereby reducing soil particle loosening through "scour" mechanisms, and;
1.1.2 Slow runoff and encourage sedimentation, thereby reducing soil particle transport downstream;
1.1.3 Absorb shear forces of overland flow; and,
1.1.4 Trap soil particles beneath.
1.2 This test method utilizes full-scale testing procedures, rather than reduced-scale (bench-scale) simulation, and is patterned after conditions typically found on construction sites at the conclusion of earthwork operations, but prior to the start of revegetation work. Therefore this considers only unvegetated conditions.
Note 1--Future revisions may consider partial or fully vegetated conditions.
1.3 This test method provides a comparative evaluation of an ECB to base line bare soil conditions under controlled and documented conditions.
1.4 The values stated in SI units are to be regarded as standard. The inch-pound units given in parentheses are provided for information purposes only.
1.5 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. Also, the user must comply with prevalent regulatory codes, such as OSHA (Occupational Health and Safety Administration) guidelines, while using the test method.
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Designation: D 6460 – 00
Standard Test Method for
Determination of Erosion Control Blanket (ECB)
Performance in Protecting Earthen Channels from
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Stormwater-Induced Erosion
This standard is issued under the fixed designation D 6460; 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. Scope comply with prevalent regulatory codes, such as OSHA (Oc-
cupational Health and SafetyAdministration) guidelines, while
1.1 This test method covers the guidelines, requirements
using the test method.
and procedures for evaluating the ability of Erosion Control
Blankets (ECBs) to protect earthen channels from stormwater-
2. Referenced Documents
induced erosion. Critical elements of this protection are the
2.1 ASTM Standards:
ability of the ECB to:
C 136 Test Method for Sieve Analysis of Fine and Course
1.1.1 Neutralize and absorb the hydraulic force of stormwa-
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Aggregates
ter, thereby reducing soil particle loosening through “scour”
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D 422 Test Method for Particle-Size Analysis of Soils
mechanisms, and;
D 698 Test Method for Laboratory Compaction Character-
1.1.2 Slow runoff and encourage sedimentation, thereby
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istics of Soil Using Standard Effort (12,400 ft·lbf/ft (600
reducing soil particle transport downstream;
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kN·m/m ))
1.1.3 Absorb shear forces of overland flow; and,
D 2974 Test Methods for Moisture, Ash, and Organic Mat-
1.1.4 Trap soil particles beneath.
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ter of Peat and Other Organic Soils
1.2 This test method utilizes full-scale testing procedures,
D 4318 Test Method for Liquid Limit, Plastic Limit, and
rather than reduced-scale (bench-scale) simulation, and is
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Plasticity Index of Soils
patterned after conditions typically found on construction sites
at the conclusion of earthwork operations, but prior to the start
3. Terminology
of revegetation work. Therefore this considers only unveg-
3.1 Definitions of Terms Specific to This Standard:
etated conditions.
3.1.1 erosion control blanket (ECB), n—a degradable ma-
NOTE 1—Future revisions may consider partial or fully vegetated
terial, composed primarily of processed natural organic mate-
conditions.
rials, manufactured or fabricated into rolls designed to reduce
1.3 This test method provides a comparative evaluation of soil erosion and assist in the growth, establishment and
an ECB to base line bare soil conditions under controlled and
protection of vegetation.
documented conditions. 3.1.2 erosion control net (ECN), n—a planar woven natural
1.4 The values stated in SI units are to be regarded as
fiber or extruded synthetic mesh used as a component in the
standard. The inch-pound units given in parentheses are manufacture of ECBs.
provided for information purposes only.
3.1.3 index test, n—a test procedure which may contain a
1.5 This standard does not purport to address all of the known bias, but which may be used to establish an order for a
safety concerns, if any, associated with its use. It is the
set of specimens with respect to the property of interest.
responsibility of the user of this standard to establish appro- 3.1.4 lot, n—a unit of production, or a group of other units
priate safety and health practices and determine the applica-
or packages, taken for sampling or statistical examination,
bility of regulatory limitations prior to use. Also, the user must having one or more common properties and being readily
separable from other similar units.
3.1.5 natural, n—a class name of various fibers of animal,
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This Test Method is under the jurisdiction of ASTM Committee D-18 on Soil mineral or vegetable origin.
and Rock; Subcommittee D 18.25 on Erosion and Sediment Control Technology;
and is the direct responsibility of Section .02 on Erosion Control Blankets (ECBs).
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Current edition approved Feb. 10, 2000. Published May 2000. Originally Annual Book of ASTM Standards, Vol 04.02.
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published as D 6460 – 99. Last previous edition D 6460 – 99. Annual Book of ASTM Standards, Vol 04.08.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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D 6460
3.1.6 open weave textile (OWT), n—atemporarydegradable 5.2 This test method models and examines conditions typi-
ECB composed of natural or polymer yarns woven into a cally found on construction sites involving earthwork activi-
matrix used to provide erosion control and facilitate vegetation ties, including: highways and roads; airports; residential, com-
establishment. mercial and industrial developments; pipelines, mines, and
3.1.7 polymer, n—a chemical compound or mixture of landfill
...
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