ASTM D6244-2006(2018) 7500 Standard Test Method for Vertical Compression of Geocomposite Pavement Panel Drains《土工复合材料路面排水沟垂直压缩的标准试验方法》.pdf
《ASTM D6244-2006(2018) 7500 Standard Test Method for Vertical Compression of Geocomposite Pavement Panel Drains《土工复合材料路面排水沟垂直压缩的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6244-2006(2018) 7500 Standard Test Method for Vertical Compression of Geocomposite Pavement Panel Drains《土工复合材料路面排水沟垂直压缩的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6244 06 (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
2、 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. Scope1.1 This test method covers vertical strain and core areachange of geocomposite pavement drains, such as thoseinc
3、luded in Specification 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 the
4、responsibility 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.1.4 This international standard was developed in accor-dance with internationally recognized principles on standar
5、d-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:2D1566 Terminology Relating to RubberD4354 Practi
6、ce for Sampling of Geosynthetics 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 d
7、eformation, nthe decrease in 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 kno
8、wn distance between twobenchmarks (see Terminology D1566).3.1.3.1 DiscussionIn compression testing ofgeosynthetics, 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 frompolyme
9、ric material used with foundation, soil, 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
10、specimenswith respect to the property of interest (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 aga
11、inst the wall of thechamber. The remainder of the chamber is 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 l
12、b) or 156.5 kPa (22.7 psi). Thechange in vertical strain, core height, 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 l
13、oad.The results of the analyses, including vertical strain of thepanels 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 giv
14、en load.1This test method is under the jurisdiction of ASTM Committee D35 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 20
15、11 as D6244 06 (2011).DOI: 10.1520/D6244-06R18.2For 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.Copyright ASTM
16、 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 Stand
17、ards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.15.3 This test method may be modified to evaluate core areachange and vertical strain under various backfill conditions.6. Apparatus6.1 Compression MachineA compression machine that is
18、capable of producing at least 4450 N (1000 lb) of load. Themachine must be capable of loading at a rate of 445 N(100 lb) min, and maintaining a constant load for an indefiniteperiod.6.2 Compression BoxThe box must be capable of holdingthe specimen and the backfill material, and it must be capableof
19、supporting a minimum vertical load of 4450 N (1000 lb).FIG. 1 Edge Drain Compression ChamberD6244 06 (2018)2The design of the box and the loading plate shall conform toFig. 1. The box shall be rigid enough to resist deformation.6.3 Clear Plastic Spacers (Shown and Described in Fig.2)These spacers ar
20、e used to protect the tempered glass endsof the compression box from scratches.6.4 SandSufficient sand to fill the compression box. Natu-ral sand is recommended. The sand shall have a gradationconforming to Table 1. The sand shall be oven dried and cooledto room temperature.6.5 Tracing PaperThe pape
21、r must be suitable for tracingand have a minimum size of 220 by 508 mm (8.5 by 20 in.).6.6 Light SourceAny high-intensity point light source isacceptable (for example, a large mag light).6.7 PlanimeterThe planimeter is used to determine area tocalculate loss of core area at the various load incremen
22、ts (aminimum of a digital planimeter should be used to calculateFIG. 2 Top View of Compression ChamberTABLE 1 Backfill GradationSieve SizeAPercent Passing9.5mm(38 in.) 100No. 4 90 100No. 16 45 80No. 50 5 25No. 100 0 8ACrushed sand may be accepted with a minimum sand equivalent of 70, providedthe pas
23、sing No. 40 sieve fraction of the sand is nonplastic.D6244 06 (2018)3core area). If computer digitizing equipment or scanningequipment is available, this may be used in lieu of theplanimeter.6.8 Scale (Length Measuring Device)A minimum rangeof 450 mm (18 in.), and an accuracy of 1 mm (116 in.).7. Sa
24、mpling7.1 Lot SampleDivide the product into lots and take thelot sample as directed in Practice D4354.7.2 Laboratory SampleConsider the units in the lotsample as the units in the laboratory sample for the lot to betested. Take for a laboratory sample a sample extending the fullwidth of the geocompos
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
最后一页预览完了!喜欢就下载吧,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD6244200620187500STANDARDTESTMETHODFORVERTICALCOMPRESSIONOFGEOCOMPOSITEPAVEMENTPANELDRAINS 土工 复合材料

链接地址:http://www.mydoc123.com/p-521952.html