ASTM D7174-2005 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《混凝土面层和结构建造用预制闭孔聚烯烃伸缩接头填充料的标准规范》.pdf
《ASTM D7174-2005 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《混凝土面层和结构建造用预制闭孔聚烯烃伸缩接头填充料的标准规范》.pdf》由会员分享,可在线阅读,更多相关《ASTM D7174-2005 Standard Specification for Preformed Closed-Cell Polyolefin Expansion Joint Fillers for Concrete Paving and Structural Construction《混凝土面层和结构建造用预制闭孔聚烯烃伸缩接头填充料的标准规范》.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 7174 05Standard Specification forPreformed Closed-Cell Polyolefin Expansion Joint Fillers forConcrete Paving and Structural Construction1This standard is issued under the fixed designation D 7174; the number immediately following the designation indicates the year oforiginal adoption
2、or, in the case of revision, 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 preformed expansion jointfillers made from closed-
3、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 typical size meas
4、ures 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 purport to addre
5、ss 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:2D 545 Test Meth
6、ods of Testing Preformed Expansion JointFillers for Concrete Construction (Nonextruding and Re-silient Types)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 cross
7、section 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) sha
8、ll 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-in. (2
9、5.4-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 towithstand o
10、n-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. Sampling6.1
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