1、Designation:D646019Standard Test Method forDetermination of Rolled Erosion Control Product(RECP)Performance in Protecting Earthen Channels fromStormwater-Induced Erosion1This standard is issued under the fixed designation D6460;the number immediately following the designation indicates the year ofor
2、iginal 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 procedures f
3、or evaluating the ability of Rolled ErosionControl Products(RECPs)to protect earthen channels fromstormwater-induced erosion.Critical elements of this protec-tion are the ability of the RECP to:1.1.1 Neutralize and absorb the hydraulic force ofstormwater,thereby reducing soil particle loosening thro
4、ugh“scour”mechanisms;1.1.2 Slow runoff and encourage sedimentation,therebyreducing soil particle transport downstream;1.1.3 Absorb shear forces of overland flow;1.1.4 Trap soil particles beneath;and1.1.5 Promote the establishment of vegetation.1.2 This test method utilizes full-scale testing procedu
5、res,rather than reduced-scale(bench-scale)simulation,and ispatterned after conditions typically found on construction sitesprior to and after revegetation work.Further,procedures forevaluation of baseline conditions are provided.Thus,testpreparation,test execution,data collection,data analysis andre
6、porting procedures herein are intended to be suitable fortesting of bare soil,unvegetated RECP,vegetated soil andvegetated RECP conditions.1.3 This test method provides a comparative evaluation ofan unvegetated RECP to baseline bare soil conditions and avegetated RECP to a baseline,vegetated conditi
7、on undercontrolled and documented conditions.1.4 The values stated in SI units are to be regarded asstandard.The inch-pound units given in parentheses areprovided for information purposes only.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It i
8、s theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Also,the user must comply with prevalent regulatory codes,such as OSHA(Occupational Health and Safety Administr
9、a-tion)guidelines,while using the test method.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the
10、World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2C136 Test Method for Sieve Analysis of Fine and CoarseAggregatesD422 Test Method for Particle-Size Analysis of Soils(With-drawn 2016)3D698 Test Methods for Laboratory Compaction Character-isti
11、cs of Soil Using Standard Effort(12,400 ft-lbf/ft3(600kN-m/m3)D1556 Test Method for Density and Unit Weight of Soil inPlace by Sand-Cone MethodD2922 Test Methods for Density of Soil and Soil-Aggregatein Place by Nuclear Methods(Shallow Depth)(With-drawn 2007)3D4318 Test Methods for Liquid Limit,Plas
12、tic Limit,andPlasticity Index of SoilsD4595 Test Method for Tensile Properties of Geotextiles bythe Wide-Width Strip MethodD6475 Test Method for Measuring Mass per Unit Area ofErosion Control BlanketsD6525 Test Method for Measuring Nominal Thickness ofRolled Erosion Control Products1This test method
13、 is under the jurisdiction ofASTM Committee D18 on Soil andRock;Subcommittee D18.25 on Erosion and Sediment Control Technology;and isthe direct responsibility of Section.02 on Erosion Control Blankets(ECBs).Current edition approved July 15,2019.Published August 2019.Originallyapproved in 1999.Last p
14、revious edition approved in 2012 as D646012.DOI:10.1520/D6460-19.2For referenced ASTM standards,visit the ASTM website,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.3
15、The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in
16、 accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 D6526 Test Method for Analysis of Toluene by CapillaryColumn Gas Chromatography(Withdrawn 2018)3D6566 Test Method for Measuring Mass Per Unit Area ofTurf Reinforcement MatsD6567 Test Method for Measuring the Light Penetration of
