1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12317-2:2010Flexible sheets forwaterproofing Determination of shearresistance of jointsPart 2: Plastic and rubber sheets for roofwaterproofingBS EN 12317-2:2010 BRITISH STA
2、NDARDNational forewordThis British Standard is the UK implementation of EN 12317-2:2010.It supersedes BS EN 12317-2:2000 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/546/2, Plastics and rubber sheets for Waterproofing.A list of organizations repres
3、ented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 59217 1ICS 91.100.50Compliance with a British Standard cannot confer imm
4、unity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2010Amendments issued since publicationDate Text affectedBS EN 12317-2:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12317-2 July 2010 ICS 91.100.50
5、 English Version Flexible sheets for waterproofing - Determination of shear resistance of joints - Part 2: Plastic and rubber sheets for roof waterproofing Feuilles souples dtanchit - Dtermination de la rsistance au cisaillement des joints - Partie 2: Feuilles dtanchit de toiture plastiques et lasto
6、mres Abdichtungsbahnen - Bestimmung des Scherwiderstandes der Fgenhte - Teil 2: Kunststoff- und Elastomerbahnen fr Dachabdichtungen This European Standard was approved by CEN on 29 May 2010. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
7、giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official
8、 versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Be
9、lgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN CO
10、MMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12317-2:2010: EBS EN 12317-2:2010EN
11、 12317-2:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Terms and definitions .54 Principle 55 Apparatus .56 Sampling .67 Preparation of test pieces and test specimens 68 Procedure .79 Expression of results 79.1 Jointing information 79.2 Evaluation .79.3 Precisi
12、on of the test method 710 Test report 7Annex A (informative) Failure modes 9BS EN 12317-2:2010EN 12317-2:2010 (E) 3 Foreword This document (EN 12317-2:2010) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for waterproofing”, the secretariat of which is held by BSI. This European
13、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. Attention is drawn to the possibility that some of the element
14、s of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12317-2:2000. This European Standard “Flexible sheets for waterproofing - Determination of shear resistance of joints” c
15、onsists of two parts: - Part 1: Bitumen sheets for roof waterproofing; - Part 2: Plastic and rubber sheets for waterproofing. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Bel
16、gium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. BS EN 12317-
17、2:2010EN 12317-2:2010 (E) 4 Introduction This European Standard is intended for characterisation of plastic and rubber sheets as manufactured or supplied before use. This test method relates to products or to their components where appropriate, and not to waterproofing membrane systems composed of s
18、uch products and installed in the works. This test is intended to be used in conjunction with EN 13956, Flexible sheet for waterproofing Plastic and rubber sheets for roof waterproofing Definitions and characteristics. BS EN 12317-2:2010EN 12317-2:2010 (E) 5 1 Scope This European Standard specifies
19、a method for determining the resistance to shearing of joints between two adjacent sheets of the same plastic or rubber sheets for roof waterproofing. NOTE The shearing characteristics of a joint between two widths of plastic or rubber sheets vary considerably depending on the material, method of jo
20、inting, the size of the overlap and the workmanship. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (includin
21、g any amendments) applies. EN 13416, Flexible sheets for waterproofing Bitumen, plastic and rubber sheets for roof waterproofing Rules for sampling EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/ compression testing machines Verification and calibr
22、ation of the force-measuring system (ISO 7500-1:2004) 3 Terms and definitions For the purposes of this document, the following term and definition apply. 3.1 shear resistance maximum tensile force required to extend a prepared joint test specimen, in shear, until it breaks or separates 4 Principle T
23、he principle of the test is to pull a specimen of a joint in shear at a constant speed until it breaks or separates. The tensile force is continuously recorded throughout the test. 5 Apparatus Tensile testing machine equipped with a continuous recording of force and corresponding extension and capab
24、le of maintaining a uniform speed of grip separation as specified below. The tensile testing machine shall have a sufficient loading capacity in excess of 2000 N and a grip separation speed of (100 10) mm/min. The width of grips shall not be less than 50 mm. The tensile testing machine shall be equi
25、pped with grips of a type, which maintain or increase the clamping pressure as a function of the increase of the force applied to the test specimen. The test specimen shall be held so that it does not slip in the grips more than 2 mm. The method of gripping shall not induce premature rupture close t
26、o the grips. The force measuring system shall meet at least Class 2 of EN ISO 7500-1 (i.e. 2 %). BS EN 12317-2:2010EN 12317-2:2010 (E) 6 6 Sampling Samples shall be taken in accordance with EN 13416. 7 Preparation of test pieces and test specimens Test pieces to be used for jointing should be previo
27、usly conditioned for at least 20 h at (23 2) C and at a relative humidity between 30 % and 70 %. Test pieces of the sheet are joined by the method(s) to be used for installation, both for side lap and end lap jointing, with an overlap that is specified for the product. After jointing, the test piece
28、 shall be conditioned for a minimum of 2 h at (23 2) C and at (50 5) % RH before testing unless the manufacturer recommends differently. From each of these joint test pieces five rectangular test specimens (50 1) mm wide shall be taken perpendicular to the joint. They shall have such a length, so th
29、at the ends of the initial distance between the two grips is (200 5) mm with the joint in the middle (see Figure 1). Dimensions in millimetres 1w200 5Key 1 grip w width of joint Figure 1 Shear strength testing of joint BS EN 12317-2:2010EN 12317-2:2010 (E) 7 8 Procedure The test specimen shall be fi
30、rmly held in the grips of the tensile testing machine, taking care that the longitudinal axis of the test specimen, the axis of the tensile testing machine and the grips are correctly aligned. Each test specimen shall be marked at the grips in order to identify any slippage out of the grips. The cle
31、ar distance between the grips shall be between 3 and 4 times the width of the joint with a minimum of 120 mm and a maximum of 200 mm. No preload shall be applied. The test is carried out on a test specimen at a temperature of (23 2) C and at a constant separating speed for the grips of (100 10) mm/m
32、in. The applied tensile force shall be recorded continuously until the test specimen ruptures or shears. The mode of failure shall be recorded. 9 Expression of results 9.1 Jointing information State all relevant information on the formation and the conditioning of the joint. 9.2 Evaluation The mode
33、of failure of each of the specimens shall be reported (see Annex A). The shear resistance of the specimen is the maximum force recorded during the test. List the individual values for each set of five specimens in Newton. Calculate and state the shear resistance of the joint as the mean value to the
34、 nearest Newton. Calculate and state the standard deviation. Disregard any test result where the test specimen breaks less than 10 mm from the grips or slips by more than the permitted limit within the grips of the tensile testing machine, and retest with a replacement specimen. 9.3 Precision of the
35、 test method No information is available at this time. 10 Test report The test report shall include at least the following information: a) reference to this document (EN 12317-2) and any deviation from it; b) all details necessary to identify the product tested; c) all details of how the weld was ca
36、rried out; d) information on sampling in accordance with Clause 6; e) details of preparation of the test specimen in accordance with Clause 7; BS EN 12317-2:2010EN 12317-2:2010 (E) 8 f) test results in accordance with Clause 9; g) the shear resistance and the failure mode; h) any peculiarities in th
37、e method employed or encountered during the test; i) date of the test(s). BS EN 12317-2:2010EN 12317-2:2010 (E) 9 Annex A (informative) Failure modes Figure A.1 Failure modes This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for prepar
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