1、Designation:D4594/D4594M96(Reapproved 2015)1Standard Test Method forEffects of Temperature on Stability of Geotextiles1This standard is issued under the fixed designation D4594/D4594M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,t
2、he year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEDesignation was changed to dual and units information was corrected editorially,and editorial changes weremade through
3、out in June 2015.1.Scope1.1 This test method provides a procedure for determiningthe effects of climatic temperature on the tensile strength andelongation properties of geotextiles.1.2 The effect of temperature on the stability of geotextilesis reported as the change in tensile strength and elongati
4、onbetween tests performed as directed in Test Method D5035,inthe standard atmosphere for testing textiles,and tests per-formed under conditions at which the geotextile is expected toperform in the field.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as stan
5、dard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associate
6、d 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.See 7.1.1 7.1.3.2.Referenced Documents2.1 ASTM Standards:2D76/D76M Specification for Tensile Testing Machi
7、nes forTextilesD123 Terminology Relating to TextilesD1682 Test Method for Breaking Load and Elongation ofTextile Fabric(Withdrawn 1992)3D4354 Practice for Sampling of Geosynthetics and RolledErosion Control Products(RECPs)for TestingD4439 Terminology for GeosyntheticsD5035 Test Method for Breaking F
8、orce and Elongation ofTextile Fabrics(Strip Method)3.Terminology3.1 Definitions:3.1.1 atmosphere for testing geotextiles,nair maintainedat relative humidity of 50 to 70%and at a temperature of 216 2C 70 6 4F.3.1.2 temperature stability,nfor a geotextile,the percentchange in tensile strength or in pe
9、rcent elongation as measuredat a specified temperature and compared to values obtained atthe standard conditions for testing geotextiles.3.2 For definitions of other terms used in this test method,refer to Terminology D123 and Terminology D4439.4.Summary of Test Method4.1 Specimens of a geotextile a
10、re conditioned at selectedtemperatures in an environmental chamber attached to a tensiletesting machine.While maintaining these temperatures,50.8 mm 2 in.cut or ravel strip tensile tests are performed asdirected in Test Method D5035.The same tests are conductedas control under the standard laborator
11、y test conditions.Tensilestrength and percent elongation properties obtained at varioustest temperatures are recorded.Changes in strength character-istics due to the effects of temperature are determined.4.2 The temperatures used for conditioning and testing thegeotextiles are the temperatures at wh
12、ich the geotextile willperform or are typically exposed to in the field.5.Significance and Use5.1 This test method is used for evaluating the relativeeffects of temperature on geotextiles manufactured from dif-ferent polymers,by a different manufacturing process,or both.5.2 During shipping and stora
13、ge,the geotextile may beexposed to abnormal temperatures.The fabric could be testedat these temperatures to determine the detrimental effects ofthese conditions on the strength properties.1This test method is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibili
14、ty of Subcommittee D35.02 on Endur-ance Properties.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 1986.Last previous edition approved in 2009 as D4594 96(2009).DOI:10.1520/D4594_D4594M-96R15E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontac
15、t 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box
16、 C700,West Conshohocken,PA 19428-2959.United States1 5.3 This test method may also be used to evaluate the cycliceffects of temperature(freeze-thaw),that is,samples can beconditioned to below normal temperatures(below freezing)and then to above normal temperatures(elevated temperatures)for a given number of cycles.Strength characteristics can bedetermined after these cyclic exposures.5.4 Most nonwoven,woven,and composite fabric can betested by this method.Modification of the techniques is likely