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1.1 This test method covers the guidelines, requirements and procedures for evaluating the ability of Erosion Control Blankets (ECBs) to protect hillslopes from rainfall-induced erosion. Critical elements of this protection are the ability of the ECB to:
1.1.1 Absorb the impact force raindrops, thereby reducing soil particle loosening through "splash" mechanisms;
1.1.2 Slow runoff and encourage infiltration, thereby reducing soil particle displacement and transport through "overland flow" mechanisms;
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 baseline 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 values 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D653 Terminology Relating to Soil, Rock, and Contained Fluids
D698 Test Methods for Laboratory Compaction Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 (600 kN-m/m3))
D3740 Practice for Minimum Requirements for Agencies Engaged in Testing and/or Inspection of Soil and Rock as Used in Engineering Design and Construction
D6026 Practice for Using Significant Digits in Geotechnical Data
D6475 Test Method for Measuring Mass per Unit Area of Erosion Control Blankets
D6525 Test Method for Measuring Nominal Thickness of Rolled Erosion Control Products
D6566 Test Method for Measuring Mass Per Unit Area of Turf Reinforcement Mats
D6567 Test Method for Measuring the Light Penetration of a Rolled Erosion Control Product (RECP)
D6818 Test Method for Ultimate Tensile Properties of Rolled Erosion Control Products
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ICS Number Code 13.080.01 (Soil quality in general)
UNSPSC Code 30121900(Soil stabilizers and reinforcing materials)
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ASTM D6459-99, Standard Test Method for Determination of Erosion Control Blanket (ECB) Performance in Protecting Hillslopes from Rainfall-Induced Erosion, ASTM International, West Conshohocken, PA, 1999, www.astm.orgBack to Top