1、Designation:D819920Standard Test Method forDetermining the Specific Strength of Hydraulically AppliedFiber Matrix Products for Erosion Control1This standard is issued under the fixed designation D8199;the number immediately following the designation indicates the year oforiginal adoption or,in the c
2、ase 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 standard provides a quantitative test method todetermine the specific strength of hydraul
3、ically applied fibermatrix products using dry and wet preparation methods in alaboratory setting.This method is designed for use as an indextest for product quality assurance or quality control,or both tocomply with manufacturing requirements.This test method isnot indicative of product performance
4、in the field.1.2 UnitsThe values stated in SI units are to be regardedas the standard.The values given in parentheses are providedfor information only and are not considered standard.Report-ing of test results in units other than SI shall not be regarded asnonconformance with this standard.1.3 All o
5、bserved and calculated values shall conform to theguidelines for significant digits and rounding established inPractice D6026,unless superseded by this test method.1.3.1 The procedures used to specify how data are collected/recorded and calculated in the standard are regarded as theindustry standard
6、.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 practice toincrease or reduce
7、 significant digits of reported data to becommensurate with these considerations.It is beyond the scopeof these test methods to consider significant digits used inanalysis methods for engineering data.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its
8、use.It is 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.1.5 This international standard was developed in accor-dance with internationally recognized principles
9、 on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D76/D76M Specification for Tensile Testin
10、g Machines forTextilesD653 Terminology Relating to Soil,Rock,and ContainedFluidsD3740 Practice for Minimum Requirements for AgenciesEngaged in Testing and/or Inspection of Soil and Rock asUsed in Engineering Design and ConstructionD4753 Guide for Evaluating,Selecting,and Specifying Bal-ances and Sta
11、ndard Masses for Use in Soil,Rock,andConstruction Materials TestingD6026 Practice for Using Significant Digits in GeotechnicalDataD7986 Practice for Preparing Specimens of Hydraulic Ero-sion Control Products for Index Property Testing3.Terminology3.1 Definitions:3.1.1 For definitions of common techn
12、ical terms used in thisstandard,refer to Terminology D653.3.2 Definitions of Terms Specific to This Standard:3.2.1 fiber matrix product,nin erosion control,hydrauli-cally applied product providing enhanced and extended erosioncontrol protection.4.Summary of Test Method4.1 Ten specimens are prepared
13、from a representativesample in accordance with Practice D7986.Five specimens arethen tested in the dry condition and five are tested in the wetcondition.Each test specimen is clamped in a Constant Rate ofExtension(CRE)tensile testing machine and a force is appliedto the specimen until it breaks.1Thi
14、s test method is under the jurisdiction ofASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.25 on Erosion andSediment Control Technology.Current edition approved May 1,2020.Published May 2020.Originallyapproved in 2019.Last previous edition approved in 2019 as D
15、8199 19.DOI:10.1520/D8199-20.2For 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.*A Summary of Changes section appears
16、 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 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.4.2 The specific strength is calculated for each s
