ASTM D6459-2015 4442 Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-Induced Erosion《测定防止山坡降雨侵蚀的冲.pdf
《ASTM D6459-2015 4442 Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-Induced Erosion《测定防止山坡降雨侵蚀的冲.pdf》由会员分享,可在线阅读,更多相关《ASTM D6459-2015 4442 Standard Test Method for Determination of Rolled Erosion Control Product (RECP) Performance in Protecting Hillslopes from Rainfall-Induced Erosion《测定防止山坡降雨侵蚀的冲.pdf(10页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6459 15Standard Test Method forDetermination of Rolled Erosion Control Product (RECP)Performance in Protecting Hillslopes from Rainfall-InducedErosion1This standard is issued under the fixed designation D6459; the number immediately following the designation indicates the year oforigin
2、al adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the guidelines, requirementsand procedur
3、es for evaluating the ability of Rolled ErosionControl Products (RECPs) to protect hillslopes from rainfall-induced erosion. Critical elements of this protection are theability of the RECP to:1.1.1 Absorb the impact force of raindrops, thereby reduc-ing soil particle loosening through “splash” mecha
4、nisms;1.1.2 Slow runoff and encourage infiltration, thereby reduc-ing soil particle displacement and transport through “overlandflow” 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 r
5、educed-scale (bench-scale) simulation, and ispatterned after conditions typically found on construction sitesat the conclusion of earthwork operations, but prior to the startof revegetation work. Therefore this considers only unveg-etated conditions.1.3 This test method provides a comparative evalua
6、tion ofan RECP-to baseline bare soil conditions under controlled anddocumented conditions.1.4 The values stated in SI units are to be regarded asstandard. The values given in parentheses are mathematicalconversions to inch-pound units, which are provided forinformation only and are not considered st
7、andard.1.5 All observed and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026, unless superseded by this standard.1.5.1 The procedures used to specify how data are collected/recorded or calculated, in this standard are regarded as thein
8、dustry standard. In addition, they are representative of thesignificant digits that generally should be retained. The proce-dures used do not consider material variation, purpose forobtaining the data, special purpose studies, or any consider-ations for the users objectives; and it is common practic
9、e toincrease or reduce significant digits of reported data to becommensurate with these considerations. It is beyond the scopeof this standard to consider significant digits used in analyticalmethods for engineering design.1.6 This standard does not purport to address all of thesafety concerns, if a
10、ny, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. Also, the user mustcomply with prevalent regulatory codes, such as OSHA (Oc-cupational Heal
11、th and SafetyAdministration) guidelines, whileusing the test method.2. Referenced Documents2.1 ASTM Standards:2D653 Terminology Relating to Soil, Rock, and ContainedFluidsD698 Test Methods for Laboratory Compaction Character-istics of Soil Using Standard Effort (12 400 ft-lbf/ft3(600kN-m/m3)D3740 Pr
12、actice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD6026 Practice for Using Significant Digits in GeotechnicalDataD6475 Test Method for Measuring Mass Per Unit Area ofErosion Control Blankets (Withdrawn 2015)
13、3D6525 Test Method for Measuring Nominal Thickness ofRolled Erosion Control ProductsD6566 Test Method for Measuring Mass per Unit Area ofTurf Reinforcement Mats1This test method is under the jurisdiction ofASTM Committee D18 on Soil andRock; Subcommittee D18.25 on Erosion and Sediment Control Techno
14、logy; and isthe direct responsibility of Section .02 on Erosion Control Blankets (ECBs).Current edition approved Nov. 1, 2015. Published November 2015. Originallyapproved in 1999. Last previous edition approved in 2011 as D645911. DOI:10.1520/D6459-15.2For referenced ASTM standards, visit the ASTM w
15、ebsite, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes sec
16、tion appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1D6567 Test Method for Measuring the Light Penetration ofa Turf Reinforcement Mat (TRM)D6818 Test Method for Ultimate Tensile Properties ofRolled E
17、rosion Control Products3. Terminology3.1 For common definitions of terms in this standard, referto Terminology D653.3.2 Definitions of Terms Specific to This Standard:3.2.1 erosion control blanket (ECB) in erosion control, nadegradable material, composed primarily of processed naturalorganic materia
18、ls, manufactured or fabricated into rolls de-signed to reduce soil erosion and assist in the growth, estab-lishment and protection of vegetation.3.2.2 rolled erosion control product (RECP) in erosioncontrol, na temporary degradable or long-term non-degradable material manufactured or fabricated into
19、 rollsdesigned to reduce soil erosion and assist in the growth,establishment, and protection of vegetation.3.2.3 turf reinforcement mat (TRM), in erosion control, nanon-degradable geosynthetic or geocomposite processed into amatrix sufficient to increase the stability threshold of otherwiseunreinfor
20、ced established vegetation.3.2.3.1 DiscussionProducts in this category may incorpo-rate ancillary degradable components to enhance the germina-tion and establishment of vegetation.4. Summary of Test Method4.1 The performance of a rolled erosion control product inreducing rainfall-induced erosion is
21、determined by subjectingthe material to simulated rainfall in a controlled and docu-mented environment.4.2 Key elements of the testing process include:4.2.1 Calibration of the rainfall simulation equipment;4.2.2 Preparation of the test plot;4.2.3 Documentation of the RECP to be tested;4.2.4 Installa
22、tion of the RECP;4.2.5 Performance of the test;4.2.6 Collection of runoff and associated sediment yielddata;4.2.7 Analysis of the resultant data, and;4.2.8 Reporting.5. Significance and Use5.1 This test method evaluates RECPs and their means ofinstallation to:5.1.1 Reduce soil loss and sediment conc
23、entrations instormwater runoff under conditions of varying rainfall intensityand soil type, and;5.1.2 Improve water quality exiting the area disturbed byearthwork activity by reducing suspended solids.5.2 This test method models and examines conditions typi-cally found on construction sites involvin
24、g earthwork activitiesincluding: highway and roads; airports; residential, commercialand industrial developments; pipelines, mines, and landfills;golf courses; etc.5.3 This test method is a performance test, but can be usedfor quality control to determine product conformance to projectspecifications
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