ASTM D7005 D7005M-2016 red 2580 Standard Test Method for Determining the Bond Strength (Ply Adhesion) of Geocomposites《测定土工合成材料粘合强度 (层间附着力) 的标准试验方法》.pdf
《ASTM D7005 D7005M-2016 red 2580 Standard Test Method for Determining the Bond Strength (Ply Adhesion) of Geocomposites《测定土工合成材料粘合强度 (层间附着力) 的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM D7005 D7005M-2016 red 2580 Standard Test Method for Determining the Bond Strength (Ply Adhesion) of Geocomposites《测定土工合成材料粘合强度 (层间附着力) 的标准试验方法》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7005/D7005M 15D7005/D7005M 16Standard Test Method forDetermining the Bond Strength (Ply Adhesion) ofGeocomposites1This standard is issued under the fixed designation D7005/D7005M; the number immediately following the designation indicates theyear of original adoption or, in the case of
2、 revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 It has been widely discussed in the literature that bond strength of flexible multi-ply materia
3、ls is difficult to measure withcurrent technology. The above is recognized and accepted, since all known methods of measurement include the force required tobend the separated layers, in addition to that required to separate them. However, useful information can be obtained when onerealizes that the
4、 bending force is included and that direct comparison between different materials, or even between the samematerials of different thickness, cannot be made.Also, conditioning that affects the moduli of the plies will be reflected in the bondstrength measurement.1.2 This index test method defines a p
5、rocedure for comparing the bond strength or ply adhesion of geocomposites. The focusis on geotextiles bonded to geonets or other types of drainage cores; for example, geomats, geospacers, etc. Other possible usesare geotextiles adhered or bonded to themselves, geomembranes, geogrids, or other dissim
6、ilar materials. Various processes canmake such laminates: adhesives, thermal bonding, stitch bonding, needling, spread coating, etc.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; th
7、erefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this s
8、tandard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use. Specific precautionary statements are given in 11.1.1.2. Referenced Documents2.1 ASTM Standards:2D76/D76M Specification for Tensile Testing Machines for TextilesD2905 P
9、ractice for Statements on Number of Specimens for Textiles (Withdrawn 2008)3D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products(RECPs) for TestingD4439 Terminology for GeosyntheticsD5321/D5321M Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosy
10、nthetic-GeosyntheticInterfaces by Direct ShearE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method3. Terminology3.1 Definitions:3.1.1 atmosphere for testing geosyntheticsair maintai
11、ned at a relative humidity between 50 to 70 % and a temperature of 216 2C 70 6 4F.3.1.2 bond strength (ply adhesion)amount of force required (per unit width) to separate plies of material or materials inpeeling mode plus the force to bend the plies.1 This test method is under the jurisdiction ofASTM
12、 Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.01 on Mechanical Properties.Current edition approved July 1, 2015Jan. 1, 2016. Published July 2015January 2016. Originally approved in 2003. Last previous edition approved in 20082015 asD700503(2008).D7005/D7005M15.
13、 DOI: 10.1520/D7005_D7005M-15.10.1520/D7005_D7005M-16.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The l
14、ast approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequat
15、ely depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken
16、, PA 19428-2959. United States13.1.3 geocompositea product composed of two or more materials, at least one of which is a geosynthetic.3.1.4 geomat/geospacerany three dimensional, polymeric material used with soil, rock, or other geotechnical engineeringrelated material as an integral part of a man-m
17、ade project, structure, or system.3.1.5 geoneta geosynthetic consisting of integrally connected parallel sets of ribs overlying similar sets at various angles forplanar drainage of liquids or gases.3.1.6 geosynthetica planar product manufactured from polymeric material used with soil, rock, earth, o
18、r other geotechnicalengineering related material as an integral part of a man-made project structure, or system.3.1.7 geotextilea permeable geosynthetic comprised solely of textiles.3.1.8 index testa test procedure, which may contain a known bias but may be used to establish an order for a set of sp
19、ecimenswith respect to the property of interest.3.1.9 machine directionthe direction in the plane of the fabric parallel to the direction of manufacture.3.1.10 neckinglocalized reduction in cross section, which may occur in a material under tensile stress.3.2 For definitions of other terms refer to
20、Terminology D4439.4. Summary of Test Method4.1 Initially the geotextile is separated from its associated material with care. The separated plies of the test specimen are placedinto the grips of a tensile testing machine. The grips are then separated and the force required to further separate the pli
21、es is definedas bond strength.NOTE 1The force to bend the separated plies is included in the measured force.5. Significance and Use5.1 This test method is to be used as a quality control or quality assurance test. As a manufacturing quality control (MQC) test,it would generally be used by the geocom
22、posite product manufacturer or fabricator.As a construction quality assurance (CQA) test,it would be used by certification or inspection organizations.5.2 This test method can also be used to verify if the adhesion or bond strength varies after exposure to various incubation mediain durability or ch
23、emical resistance testing, or both.5.3 Whatever use is to be associated with the test, it should be understood that this is an index test.NOTE 2There have been numerous attempts to relate the results of this test to the interface shearing resistance of the respective materials determinedper Test Met
24、hod D5321/D5321M. To date, no relationships have been established between the two properties.5.4 Test Method D7005/D7005M for determining the bond strength (ply adhesion) strength may be used as an acceptance testof commercial shipments of geocomposites, but caution is advised since information abou
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