1、Designation: D6297 13Standard Specification forAsphaltic Plug Joints for Bridges1This standard is issued under the fixed designation D6297; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pare
2、ntheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the material, testing and appli-cation requirements for a field molded asphaltic plug joint(APJ) used in expansion joint se
3、aling on asphalt concreteoverlay and portland cement concrete decks. The scope of thisspecification is limited to field molded APJ. This moldedelement can consist of multilayer, or single layer, or both,application systems depending upon individual manufacturingrequirements. The details of this spec
4、ification are limited to thematerials used in the application of APJ. It is recommendedthat a practical means of testing the watertightness aspects ofthe individual systems, either in the field or at the testinglaboratory, be developed. When used on highway bridges,limits on maximum joint movements
5、shall be specificallyidentified for each type of APJ. APJs should not be used formovement applications exceeding 6 25 mm from the installa-tion width.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are provided forinformation only.1.3 This standar
6、d does not purport to address all of thesafety concerns, if any, associated 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.2. Referenced Documents2.1 ASTM
7、 Standards:2A36/A36M Specification for Carbon Structural SteelD5 Test Method for Penetration of Bituminous MaterialsD36 Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)D113 Test Method for Ductility of Bituminous MaterialsD217 Test Methods for Cone Penetration of LubricatingGreas
8、eD5167 Practice for Melting of Hot-Applied Joint and CrackSealant and Filler for EvaluationD5249 Specification for Backer Material for Use with Cold-and Hot-Applied Joint Sealants in Portland-Cement Con-crete and Asphalt JointsD5329 Test Methods for Sealants and Fillers, Hot-Applied,for Joints and C
9、racks in Asphaltic and Portland CementConcrete Pavements3. Terminology3.1 Acronyms:3.1.1 APJAsphaltic Plug Joint.3.1.2 ABAsphaltic Binder.4. Material4.1 The AB shall be a thermoplastic polymeric-modifiedasphalt conforming to the physical properties in Table 1.4.2 Type of aggregate shall be one of th
10、e following: granite,basalt, gabbro, porphyry or gritstones. The specified aggregateshall be crushed, washed, and dried. Specific size and grada-tions of aggregate shall be agreed upon by the purchaser andAPJ manufacturer. The aggregate shall be preweighed andpackaged to avoid confusion on the jobsi
11、te. It shall be notedthat specific sizes of aggregate may be proprietary to certainmanufacturers.4.3 The closed cell foam expansion joint filler shall benongassing and capable of withstanding the elevated installa-tion temperature (199C) of the AB and meet SpecificationD5249.4.4 The steel bridging p
12、late shall conform to SpecificationA36/A36M for mild steel.5. Physical Properties5.1 The thermoplastic polymeric modified asphalt samplesshall be melted for sample preparation in accordance toPractice D5167.5.2 The thermoplastic polymeric modified asphalt shallconform to the physical properties pres
13、cribed in Table 1.1This specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direct responsibility of Subcommittee D04.32 onBridges and Structures.Current edition approved July 1, 2013 Published August 2013. Originallyapproved in 1998. Last previous ed
14、ition approved in 2007 as D6297 01 (2007).DOI: 10.1520/D6297-13.2For 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 websi
15、te.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Dimensions and Tolerances6.1 The size, shape, and dimensional tolerance shall beagreed upon by the purchaser and the producer or supplier.These tolerances shall be in compliance wi
16、th the field construc-tion specifications. The standard minimum blockout dimen-sions are 50 500 mm; however, it should be noted that valuesfluctuate depending on existing field conditions.7. Procedure7.1 The AB shall be heated to a temperature as specified bythe manufacturer. The melter must be supp
17、lied with a continu-ous agitation system and calibrated thermometers.7.2 The specified aggregate shall be heated to the manufac-turers prescribed temperature in a manufacturers recom-mended mixer. The temperature of the specified aggregate shallbe controlled by a digital temperature sensor.7.3 The A
18、B shall be blended with the heated aggregate at aratio of aggregate to AB as specified by the manufacturer. Theblend tolerance shall be 65 % by weight. The minimumaggregate content shall be 68 % by weight.7.4 Alternately, the AB and specified aggregate can bepre-measured and pre-packaged, heated on
19、site in a manufac-turers recommended mixing unit.7.5 The specified aggregate shall be coated completely withbinder prior to placement in the blockout.7.6 The closed cell, foam expansion joint filler shall beplaced into the expansion gap at a depth of not greater than thewidth of the gap. Where the g
20、ap is greater than 25 mm, theminimum depth shall be 25 mm. The joint opening shall thenbe filled with AB until it runs into the corresponding blockoutto ensure a water-tight joint below the bridging plate.7.7 The bridging plate shall be mild steel or aluminum aminimum of 6-mm thick and 200-mm wide,
21、cut in minimum1.2-m lengths, centered over the entire length of the expansionjoint gap when specified. When specified, the bridging plateshall have pre-drilled holes at 300-mm on center for thelocating pins.7.8 The blended heated AB and heated specified aggregateshall be placed in a prepared blockou
22、t in accordance with themanufacturers recommended installation procedures.7.9 When specified, the locating spikes used to position thebridging plate, shall be galvanized 16 d column nails or larger.7.10 The blended heated AB and heated coated specifiedaggregate shall be compacted longitudinal and tr
23、ansverse to thejoint using a roller or plate compactor, which delivers aminimum centrifugal force of 15 kN.7.11 Where an antiskid/antitracking surface is required, thesurface of the APJ shall be heated prior to broadcasting theantiskid material in accordance with the manufacturers writteninstruction
24、s.8. Sampling8.1 Samples of the thermoplastic polymeric modified as-phalt shall be taken at random prior to the shipment of material.If the shipment consists of more than one batch, a sample fromeach batch shall be taken.8.2 A minimum of 1.4 kg of the thermoplastic polymericmodified asphalt taken fr
25、om the manufacturers facility shallconstitute one sample for testing purposes.8.3 Samples of the specified aggregate shall be taken atrandom from each shipment of material. If the shipmentconsists of more than one batch, a sample from each batch shallbe taken.8.4 A minimum of 23 kg of the specified
26、aggregate shallconstitute one sample for size and gradation analysis.8.5 A minimum of 300 mm of the closed cell, foamexpansion joint filler constitute one sample for testing pur-poses.9. Test Methods9.1 Low Temperature Cone Penetration, Non-immersed:9.1.1 Apparatus:9.1.1.1 Penetrometer/ConeConduct t
27、his test using the ap-paratus described in Test Method D5, except as specifiedherein. Use a penetration cone in place of the standardpenetration needle. The cone shall conform to the requirementsgiven in Test Methods D217, except the interior constructionmay be modified as desired. The total moving
28、weight of thecone and attachments shall be 150.0 6 0.1 g.9.1.1.2 Cold Chamber The cold chamber shall be capableof maintaining the required cold test temperature within61.1C.9.1.2 Specimen PreparationPour a portion of the ABprepared in accordance with Practice D5167 into three 177-mLtins measuring ap
29、proximately 69-mm diameter and 44 mm indepth and fill flush to the rim of each tin. Allow the testspecimens to cure under the standard conditions as specified inits respective material specification.9.1.3 ProcedurePlace the three test specimens and threecones in cold chamber at 18 6 0C for no less t
30、he 4h. Removeone sample and core from the cold chamber and using theapparatus described in 9.1.1, immediately make a determina-tion at a location on 120 radii, and halfway between the centerTABLE 1 Physical PropertiesASTMStandardsRequired PhysicalPropertiesSoftening point, min D36 83CTensile adhesio
31、n, min D5329 700 %Ductility, min at 25C(77F) D113 400 mmPenetration D5329Max at 25C(77F) 150 g, 5 s 75 unitsLow temperature penetration 9.1Min at 18C (0F) 200 g,60 s 10 unitsFlow,max5hat60C (140F) D5329 3.0 mmResiliency, min - max at 25C (77F) D5329 40 - 70 %Asphalt compatibility D5329 PassRecommend
32、ed application heating 182C - 199CTemperature rangeBond 3 Cycles at 7C (+20F), D5329 Pass100 % ElongationFlexibility, at 23C (10F) 9.2 PassD6297 132and outside of the test specimen. Take care to ensure the conepoint is placed on a point in the test specimen that isrepresentative of the material itse
33、lf and is free of dust, water,bubbles or other foreign material. Follow the above procedurefor the second and third samples.9.1.4 ReportAverage the three results to the nearest wholeunit and record the value as the low temperature penetration ofthe specimen.9.2 Flexibility:9.2.1 ScopeThis method mea
34、sures the ability of a sealantto be bent around a mandrel when exposed to cold tempera-tures. Conduct this test and prepare samples as described inSection 18 of Test Method D5329 except as specified herein.9.2.2 Apparatus:9.2.2.1 Cold ChamberThe cold chamber shall be capableof maintaining the requir
35、ed test temperature within 61.1C.9.2.3 Specimen ConditioningPlace three test specimensand the test mandrel in the cold chamber at 23C for no lessthan 4 h to condition samples prior to testing.9.2.4 ProcedureAfter the specimens and test mandrelhave been conditioned for the required conditioning timep
36、eriod and while keeping both the specimens and the mandrelin the cold chamber slowly bend the sample over a 6.4 mm(0.25 in.) diameter mandrel producing a 90 bend in the sampleplate with a maximum radius at the bend of 3.2 mm (0.125 in.).Locate the bend so that it is approximate midpoint in the 60mm
37、(2.36 in.) dimension of the specimen.9.2.5 ReportingReport results as pass or fail. A passingresult will be no cracking or minimal cracking that does notexpose the metal substrate. A failing result will be loss ofadhesion to the metal substrate or cracking that exposes themetal substrate.10. Precisi
38、on and Bias10.1 The precision of the procedure in Test Method D5 fordetermining penetration as modified in 9.1 is being determined.11. Keywords11.1 asphaltic plug; bridging plate; closed cell foam; expan-sion joint; polymeric; thermoplasticASTM International takes no position respecting the validity
39、 of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard 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
40、to revision at any time by the responsible technical committee and must be reviewed every five years andif not 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
41、. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which 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
42、 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D6297 133
