ASTM D7174-2005(2011) 0000 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《铺筑混凝土路面和结构建筑用预制封闭气室式聚.pdf
《ASTM D7174-2005(2011) 0000 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《铺筑混凝土路面和结构建筑用预制封闭气室式聚.pdf》由会员分享,可在线阅读,更多相关《ASTM D7174-2005(2011) 0000 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《铺筑混凝土路面和结构建筑用预制封闭气室式聚.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7174 05 (Reapproved 2011)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
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