1、Designation: D7174 05 (Reapproved 2016)Standard Specification forPreformed Closed-Cell Polyolefin Expansion Joint Fillers forConcrete Paving and Structural Construction1This standard is issued under the fixed designation D7174; the number immediately following the designation indicates the year ofor
2、iginal adoption or, in the case of revision, the 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 specification covers preformed expansion jointfillers ma
3、de from closed-cell polyolefin materials having suit-able compressibility and nonextruding characteristics.1.1.1 Type I, closed-cell polyethylene or blended polyeth-ylene.1.2 These joint fillers are intended for use in concretepavements in full-depth joints. There are several variations insize. A ty
4、pical size measures 0.5-in. (12.7-mm) in thickness,4.0-in. (101.6-mm) in width, and 10-ft (3.048-m) in length andwill relieve stress or avoid potential distress in adjacentstructures or pavements.1.3 The values stated in inch-pound units are to be regardedas the standard.1.4 This standard does not p
5、urport 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 Standards:2
6、D545 Test Methods for Preformed Expansion Joint Fillersfor Concrete Construction (Nonextruding and ResilientTypes)3. Materials and Manufacture3.1 Type I, Closed-Cell Polyethylene or BlendedPolyethyleneThese fillers shall be made from foamed poly-ethylene or blended polyethylene, and their preformed
7、crosssection shall be closed-cell.4. Physical Properties4.1 Compressive Strength:4.1.1 MinimumLoad required to compress test specimenby 25 % (to 75 % of original thickness) shall not be less than5 psi (35 kPa).4.1.2 MaximumLoad required to compress test specimenby 85 % (to 15 % of original thickness
8、) shall not be greaterthan 300 psi (2070 kPa).4.2 RecoveryAfter compressing the test specimen to 50 %of its thickness before test, the load shall be released; and 10min after release of the load, the specimen shall have recoveredto at least 95 % of its thickness before test.4.3 ExtrusionWhen a 1.0-i
9、n. (25.4-mm) thick test speci-men is compressed to 50 % of its original thickness with threeof its edges restrained, the free edge shall extrude not morethan 0.5-in. (12.7-mm).4.4 Structural CharacteristicsClosed-cell expansion jointfiller units shall have sufficient strength and resiliency towithst
10、and on-the-job handling without breakage or permanentdeformation.5. Dimensions, Mass, and Permissible Variations5.1 Expansion joint filler units shall conform to dimensionsas specified:5.1.1 Thickness, +10, 0 %.5.1.2 Width, +0.8, 0 in. (+20.3, 0 mm).5.1.3 Length, +3.0, 0 in. (+76.2, 0 mm).6. Samplin
11、g6.1 Size of SamplesEach sample shall consist of sufficientmaterial to provide at least ten test specimens measuring 4.5 by4.5 in. (114.3 by 114.3 mm), or as required by the user agency.Unless otherwise specified under applicable test method, testspecimens shall be the same thickness as the expansio
12、n jointfiller units to be installed.6.2 Number of SamplesSelect one representative samplefrom each shipment of material capable of filling 5000 linear ft(1524 m) of expansion joint filler.1This specification is under the jurisdiction of ASTM Committee D04 on Roadand Paving Materials and is the direc
13、t responsibility of Subcommittee D04.34 onPreformed Joint Fillers, Sealers and Sealing Systems.Current edition approved Oct. 1, 2016. Published October 2016. Originallyapproved in 2005. Last previous edition approved in 2011 as D7174 05 (2011).DOI: 10.1520/D7174-05R16.2For referenced ASTM standards,
14、 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1942
15、8-2959. United States17. Test Methods7.1 ScopeDetermine the physical requirements prescribedin this specification under 4.2 and 4.3, in accordance with TestMethod D545.7.2 Compressive Strength (see 4.1)Determine in accor-dance with Method D545 with the following exception: Thecompressive strength sh
16、all be determined at deflections of 25and 85 %.8. Inspection8.1 Inspection of the material and selection of sample orsamples to be tested may be made either at the point ofshipment or at the point of delivery, as agreed upon.9. Rejection and Rehearing9.1 If a selected sample fails to conform to any
17、of therequirements of this specification, select two additionalsamples from the same lot and test. Both retest samples shallmeet the requirements of this specification or the lot will berejected.10. Precision and Bias10.1 Precision and bias statements for the tests in sections4.2 and 7.2 have not be
18、en developed at this time. Therefore,this standard should not be used for acceptance or rejection ofa material for purchasing purposes.11. Keywords11.1 cellular plastic; closed-cell; expansion joint; filler;joint; polyethylene; polyolefin; preformedASTM International takes no position respecting the
19、 validity 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
20、 subject 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 Hea
21、dquarters. 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 st
22、andard 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). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 05 (2016)2
