1、Designation: D 2643 04Standard Specification forPrefabricated Asphalt Reservoir, Pond, Canal, and DitchLiner (Exposed Type)1This standard is issued under the fixed designation D 2643; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers prefabricated asphalt linersheets intended for installation in accordance with
3、 PracticeD 3745 to provide a continuous, exposed lining for reservoirs,ponds, canals, and ditches.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 The following precautionary caveat pertains only to thetest method portio
4、n, Section 8, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tion
5、s prior to use.2. Referenced Documents2.1 ASTM Standards:2D 994 Specification for Preformed Expansion Joint Fillerfor Concrete (Bituminous Type)D 1079 Terminology Relating to Roofing, Waterproofing,and Bituminous MaterialsD 2172 Test Methods for Quantitative Extraction of Bitu-men from Bituminous Pa
6、ving MixturesD 3745 Practice for Installation of Prefabricated AsphaltReservoir, Pond, Canal, and Ditch Liner (Exposed Type)E 154 Test Methods for Water Vapor Retarders Used inContact with Earth Under Concrete Slabs, on Walls, and asGround Cover3. Terminology3.1 DefinitionsRefer to Terminology D 107
7、9 for defini-tions of terms used in this specification.4. Materials and Manufacture4.1 The liner sheets shall consist of layers of asphalt masticbetween asphalt-saturated felts, mats, or fabrics, and shall becoated on both sides and covered with a material to prevent thefinished sheets from sticking
8、 together during storage andshipment.4.2 The mastic shall consist of asphalt, mineral fillers, andreinforcing fibers of any type.4.3 The felts, mats, or fabrics shall be organic or glass fiber,and shall be impregnated with a hot asphaltic saturant.4.4 The coating shall be a hot-applied asphalt mater
9、ialpermitted to be compounded with a mineral stabilizer.4.5 The material or treatment applied to prevent the finishedsheets from sticking together shall be such that it can beremoved at the installation site, or its presence will notinterfere with bonding of joint sealant.5. Physical Requirements Ph
10、ysical Requirements5.1 The liner sheets shall conform to the requirementsprescribed in Table 1.6. Dimensions, Mass, and Permissible Variations6.1 Dimensions:6.1.1 Thickness12.7 6 1.52 mm (0.500 6 0.060 in.).6.1.2 Width915 or 1220 6 6 mm (36 or 48 614 in.).6.1.3 Length2440, 3050, or 3660 6 13 mm (96,
11、 120, or144 612 in.).6.1.4 Other dimensions may be agreed upon between thepurchaser and the supplier for liner sheets and batten or coverstrips as part of the purchase contract.1This specification is under the jurisdiction of ASTM Committee D35 onGeosynthetics and is the direct responsibility of Sub
12、committee D35.10 on Geomem-branes.Current edition approved Sept. 1, 2004. Published September 2004. Originallyapproved in 1967. Last previous edition approved in 1998 as D 2643 98.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org
13、. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.2 Density1150 kg/m3(72 lb/ft3) minimum at 25C(77F).6.3 Thickness
14、 of Asphalt Coating0.60 6 0.20 mm (0.0236 0.008 in.).NOTE 1If glass mat or fabric is used for the facings, the asphaltcoating thickness can not readily be determined and this requirement shallbe waived.7. Workmanship, Finish, and Appearance7.1 Both surfaces of the liner sheets shall be uniform infin
15、ish and texture. The asphaltic coating shall be applieduniformly to each side over the entire area and up to the edgesof the sheet, and the material or treatment to prevent stickingshall be applied uniformly.7.2 Upon cutting the liner sheets at any point and examiningthe cross section, there shall b
16、e no voids in the mastic orunsaturated spots in the felts, mats, or fabrics.7.3 The liner sheets shall be free of visible defects such asholes, ragged or untrue edges, breaks, cracks, protuberances,and indentations.8. Sampling and Test Methods8.1 SamplingSelect one sheet at random from every 400shee
17、ts or fraction thereof.8.2 ThicknessCut one test specimen 50 by 150 mm (2 by6 in.) from each liner sheet in the sample as shown at A-1 inFig. 1. Measure the thickness to the nearest 0.02 mm (0.001in.) at four points about 13 mm (12 in.) in from the center ofeach edge; average the measurements and re
18、cord as thethickness.TABLE 1 Physical Requirements of Asphalt Liner SheetsWater absorption, max, % 1.0Mass percent of asphalt, min, % 65.0Resistance to decay no effectFlexibility no cracking or ruptureBrittleness no cracking or shatteringHeat distortion no bulging or mastic flowAll dimensions in mil
19、limetres.FIG. 1 Location of Test Specimens in Each Sample SheetD26430428.3 Thickness of Asphalt Coating:8.3.1 Using a heated putty knife or other blade, carefullyremove the asphalt coating from one side of the specimen from8.2 in the four areas where the thickness measurements weremade.8.3.2 After c
20、ooling, measure the thickness again at the samefour points. Record the difference of the average thicknessesdetermined in 8.2 and 8.3.2 as the average thickness of thecoating on that side.8.3.3 Repeat the procedure for the other side of the speci-men, but record the difference of the average thickne
21、ssesdetermined in 8.3.2 and 8.3.3 as the average thickness of thecoating on the second side.8.4 Water AbsorptionCut two test specimens 50 by 150mm (2 by 6 in.) from each sheet in the sample as shown at A-2and A-3 in Fig. 1. Test each specimen in accordance with 7.3of Specification D 994.8.5 Mass Per
22、cent of AsphaltCut one test specimen 50 by150 mm (2 by 6 in.) from each sheet in the sample as shown atA-4 in Fig. 1. Test in accordance with Test Methods D 2172,Method B. For referee testing, use Test Methods D 2172.8.6 Resistance to DecayCut four test specimens 100 by100 mm (4 by 4 in.) from each
23、sheet in the sample as shown atC-1, C-2, C-3, and C-4 in Fig. 1. Test in accordance with TestMethods E 154, except that the specimens shall be square.Examine for any evidence of blistering, wrinkling, swelling, orseparation of layers. Retain these specimens for the brittlenesstest described in 8.8.8
24、.7 Flexibility:8.7.1 Cut three test specimens 75 by 300 mm (3 by 12 in.)from each sheet in the sample as shown at B-1, B-2, and B-3in Fig. 1. Condition for2hat326 3C (90 6 5F).8.7.2 Use a short length of 460-mm outside diameter pipe(18-in. NPS) as a horizontal mandrel. Lay the test specimenacross th
25、e top of the mandrel at right angles to its axis. Thenslowly bend the specimen around the mandrel by pressing bothends downward at a uniform speed so that complete contact ismade with the surface of the cylinder in 60 6 10 s.8.7.3 Examine the specimen for any evidence of cracking orrupture.8.8 Britt
26、leness:8.8.1 Cut one test specimen 100 by 100 mm (4 by 4 in.)from each sheet in the sample as shown at C-5 in Fig. 1.Condition for2hat46 2C (39 6 3F).8.8.2 Place the specimen in the center of a 200-mm (8-in.)square piece of 19-mm (34-in.) thick plywood, resting on ahorizontal concrete surface. Subje
27、ct the center of the specimento one impact from a 0.45-kg (1.0-lb) iron ball dropped adistance of 915 mm (36 in.).8.8.3 Condition the three specimens from 8.6 and subjectthem to the impact described in 8.8.2.8.8.4 Examine each specimen for evidence of any crackingor shattering.8.9 Heat Distortion:8.
28、9.1 Cut one test specimen 100 by 100 mm (4 by 4 in.)from each sheet in the sample as shown at C-6 in Fig. 1.8.9.2 Condition the specimen on a horizontal steel surfacefor2hat666 2C (150 6 3F).8.9.3 Examine the specimen for any evidence of bulging orflow of the mastic core.9. Inspection9.1 InspectionI
29、nspection shall be in accordance with therequirements of this specification.9.2 Inspection AlternativesAlternative inspection require-ments shall be determined by and as agreed upon between thepurchaser and the supplier.10. Rejection and Resubmittal10.1 Failure to ConformFailure to conform to any of
30、 therequirements as stated in this specification constitutes groundsfor rejection.10.2 Rejection RedressThe supplier shall have the right toinspect the rejected materials. The supplier and the purchasershall agree to the quantity of rolls deemed unacceptable. Thesupplier shall then have the right to
31、 submit the same number ofnew rolls as replacement.11. Packaging and Package Marking11.1 Unless otherwise agreed upon between the supplier andpurchaser, each product package shall be plainly marked withthe suppliers name, the product brand, the ASTM designation,and type of bitumen if not evident in
32、the label name of theproduct.12. Keywords12.1 canals; ditches; exposed lining; ponds; prefabricatedasphalt liner sheets; reservoirsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard
33、are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif no
34、t revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which
35、you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D2643043
