1、Designation:D624406(Reapproved 2018)Standard Test Method forVertical Compression of Geocomposite Pavement PanelDrains1This standard is issued under the fixed designation D6244;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、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.Scope1.1 This test method covers vertical strain and core areachange of geocomposite pavement drains,such as thoseincluded in Spe
3、cification D7001,under vertical compression.1.2 The values as stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of
4、 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.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization establish
5、ed 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:2D1566 Terminology Relating to RubberD4354 Practice for Sampling of Geos
6、ynthetics and RolledErosion Control Products(RECPs)for TestingD4439 Terminology for GeosyntheticsD7001 Specification for Geocomposites for Pavement EdgeDrains and Other High-Flow Applications3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 compressive deformation,nthe decrease i
7、n gagelength produced in the test specimen by a compressive load,expressed in units of length(new).3.1.2 compressive strain,nthe ratio of compressive defor-mation to the gage length of the test specimen,expressed as adimensionless ratio(new).3.1.3 gage length,nthe known distance between twobenchmark
8、s(see Terminology D1566).3.1.3.1 DiscussionIncompressiontestingofgeosynthetics,gage length is the measured thickness of the testspecimen under specified compressional force,expressed inunits of length.3.1.4 geosynthetic,na planar product manufactured frompolymeric material used with foundation,soil,
9、rock,earth,orany other geotechnical engineering-related materials as anintegral part of a manmade project,structure,or system(seeTerminology D4439).3.1.5 index test,na test procedure which may contain aknown bias but which may be used to order a set of specimenswith respect to the property of intere
10、st(see TerminologyD4439).4.Summary of Test Method4.1 Geocomposite pavement edge drains are placed into a304.8-mm(12-in.)long,106.7-mm(4.20-in.)wide,and610-mm(24-in.)tall glass and aluminum compression cham-ber.The geocomposites are placed against the wall of thechamber.The remainder of the chamber i
11、s then backfilled witha specified sand.A vertical load is applied at a constant rate.The vertical strains of the panels and change in core area andheight is recorded at 1112.5-N(250-lb)increments.The test isdiscontinued at 4450 N(1000 lb)or 156.5 kPa(22.7 psi).Thechange in vertical strain,core heigh
12、t,and core area is deter-mined.5.Significance and Use5.1 The vertical compression test for geocomposite pave-ment panel drains is intended to simulate vertical,horizontal,and eccentric loading resulting from an applied vertical load.The results of the analyses,including vertical strain of thepanels
13、and core area change,may be used as an index test.Thevertical compression test may be used to evaluate core areachange for a given load.5.2 The vertical compression test may be used to evaluatepercent vertical strain for a given load.1This test method is under the jurisdiction of ASTM Committee D35
14、onGeosynthetics and is the direct responsibility of Subcommittee D35.01 on Mechani-cal Properties.Current edition approved Feb.1,2018.Published February 2018.Originallyapproved in 1998.Last previous edition approved in 2011 as D6244 06(2011).DOI:10.1520/D6244-06R18.2For referenced ASTM standards,vis
15、it 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.Unite
16、d 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.1 5.3 This test method may be modified to evaluate core areachange and vertical strain under various backfill conditions.6.Apparatus6.1 Compression MachineA compression machine t
