BS EN 14694-2017 Flexible sheets for waterproofing Waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicles Determination of resistance to dynamic.pdf

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1、BS EN 14694:2017Flexible sheets forwaterproofing Waterproofing of concretebridge decks and otherconcrete surfaces trafficableby vehicles Determinationof resistance to dynamic waterpressure after damage by pre-treatmentBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06B

2、S EN 14694:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14694:2017. It supersedes BS EN 14694:2005 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/546, Flexible sheets for waterproofing and water vapour c

3、ontrol.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI

4、 Standards Limited 2017ISBN 978 0 580 94823 7 ICS 91.100.50 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2017.Amendments/corrigenda issued since publ

5、icationDate T e x t a f f e c t e dBS EN 14694:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14694 March 2017 ICS 91.100.50 Supersedes EN 14694:2005English Version Flexible sheets for waterproofing - Waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicle

6、s - Determination of resistance to dynamic water pressure after damage by pre-treatment Feuilles souples dtanchit - tanchit des tabliers de ponts en bton et autres surfaces en bton circulables par les vhicules - Dtermination de la rsistance la pression hydraulique dynamique aprs dgradation par prtra

7、itement Abdichtungsbahnen - Abdichtung von Betonbrcken und anderen Verkehrsflchen auf Beton - Bestimmung des Widerstandes gegenber dynamischem Wasserdruck nach Schden infolge VorbeanspruchungThis European Standard was approved by CEN on 6 February 2017. CEN members are bound to comply with the CEN/C

8、ENELEC Internal Regulations which stipulate the conditions for 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-CENELEC Management Centr

9、e or to any CEN member. This European Standard exists in three official 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-CENELEC Management Centre has the same status as the

10、official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherla

11、nds, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN Al

12、l rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14694:2017 EBS EN 14694:2017EN 14694:2017 (E) 2 Contents Page European foreword . 3 Introduction 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 5 4 Test methods 5 4.1 Princi

13、ple . 5 4.2 Apparatus and materials 5 4.3 Preparation of test specimens 5 4.4 Procedure. 6 4.5 Expression of results 6 4.6 Test report . 7 BS EN 14694:2017EN 14694:2017 (E) 3 European foreword This document (EN 14694:2017) has been prepared by Technical Committee CEN/TC 254 “Flexible sheets for wate

14、rproofing”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2017, and conflicting national standards shall be withdrawn at the latest by Septembe

15、r 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 14694:2005. This document has been prepared under a mandate given

16、 to CEN by the European Commission and the European Free Trade Association. The significant technical changes are the new reference to prEN 17048 in Clause 2, Normative references, and further information about test specimens in Clause 4.3, Preparation of test specimens. According to the CEN-CENELEC

17、 Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Icela

18、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 14694:2017EN 14694:2017 (E) 4 Introduction The purpose of this test is to determine the resistance to

19、 pre-treatment by impact puncturing followed by dynamic water pressure testing for sheets in the waterproofing system. The test is normally performed for single sheets but may also be performed for double sheet systems. BS EN 14694:2017EN 14694:2017 (E) 5 1 Scope This European Standard specifies a t

20、est method for the evaluation of the resistance to impact puncturing of a sheet or sheet system. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited ap

21、plies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13375, Flexible sheets for waterproofing - Waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicles - Specimen preparation EN 13416, Flexible sheets f

22、or waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Rules for sampling EN 14695, Flexible sheets for waterproofing - Reinforced bitumen sheets for waterproofing of concrete bridge decks and other trafficked areas of concrete - Definitions and characteristics prEN 17048, Fl

23、exible sheets for waterproofing - Plastic and rubber sheets for waterproofing of concrete bridge decks and other trafficked areas of concrete - Definitions and characteristics 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13416, EN 14695 and prEN 17

24、048 apply. 4 Test methods 4.1 Principle Pre-treatment impact puncturing is carried out at room temperature, where a conical weight is allowed to fall freely on to the waterproofing sheet. The degree of penetration is then assessed with the aid of dynamic water pressure testing. 4.2 Apparatus and mat

25、erials Equipment for impact puncturing, with a puncturing tool consisting of (1,0 0,01) kg of steel with a 90 conical point (see Figures 2 and 3). Concrete slab, according to EN 13375 for supporting the test specimen during impact puncturing. Suitable frame, for holding the test specimen firmly to t

26、he concrete slab. Equipment for the water pressure test, with a dynamic water pressure applied (see Figures 4 and 5). 4.3 Preparation of test specimens Take test samples and test pieces in accordance with EN 13416. Select one test specimen of 400 mm 200 mm for testing. In the case of a double sheet

27、system, weld or glue the two sheets together according to manufacturer instructions. Ensure that the sheet or sheet system thickness is within the limits of the equipment used. Condition the test specimen for at least 24 h at a temperature of (23 2) C. BS EN 14694:2017EN 14694:2017 (E) 6 4.4 Procedu

28、re 4.4.1 Carry out the testing at a temperature of (23 2) C. 4.4.2 Select on the test specimen of 400 mm 200 mm two circular sections of diameter 135 mm approximately. 4.4.3 Lay the test specimen on the horizontal concrete slab, with the upper side of the sheet facing upwards. Hold the test specimen

29、 down and in place with a suitable frame. The sheet shall not be bonded to the concrete. 4.4.4 Impact the test specimen at 4 points in each circular section, ensuring that the 4 points are diametrically positioned within each circular section so that each point will fit into a disc slot according to

30、 Figure 5. Allow the puncturing tool to fall freely and vertically from a specified height of (200 2) mm onto the surface of the test specimen. 4.4.5 Cut the two circular test specimens (diameter 135 mm approximately) from the pre-treated test specimen for water pressure testing. 4.4.6 Fill the appa

31、ratus for the water pressure test with water till overflowing. In testing, mount the circular test specimen firmly with the upper side of the sheet facing upwards in the equipment (see Figure 4). Place the slotted disc (see Figure 5), on top of the test specimen so that a punctured point appears in

32、the middle of each slot, with one of the slots being parallel to the longitudinal direction of the sheet. Progressively tighten until the test specimen is firmly in place, and dry where necessary with a cloth or with compressed air. 4.4.7 Under the influence of a specified dynamic water pressure, ex

33、amine the circular test specimen to determine whether it remains impervious for a specified number of pulses. The dynamic pressure is defined in Figure 1. The water pressure is increased from 0 kPa to (500 5) kPa within 0,5 s, kept at that pressure for 2,5 s, decreased again within 0,5 s to 0 kPa an

34、d kept there for another 2,5 s. The total time of a pulse is 5 s to 6 s. Perform 1 000 pulses of the dynamic water pressure test on both circular test specimens. If a visual inspection identifies a leakage in the test specimen, terminate the test and record the number of pulses. Figure 1 Dynamic pre

35、ssure load function 4.5 Expression of results If both circular test specimens are watertight, the result is “pass”. Repeat the test once if one of the two circular test specimens has leaked, and report the test results. If both circular test specimens of this repeated test are watertight, the result

36、 is “pass”, if not “not pass”. NOTE There is no precision data currently available. BS EN 14694:2017EN 14694:2017 (E) 7 4.6 Test report The test report shall include at least the following information: a) all details necessary to identify the product tested; b) a reference to this document and any d

37、eviation from it; c) the dates of delivery of sample and preparation of test specimens; d) information about preparation of test specimens in accordance with 4.3; e) information about the procedure in accordance with 4.4; f) the test results in accordance with 4.5 and, in case of leakage, the number

38、 of pulses before leakage; g) the date of tests. BS EN 14694:2017EN 14694:2017 (E) 8 Key 1 Shaft 2 Puncturing tool 3 Test specimen 4 Concrete slab Figure 2 Example of equipment for impact puncturing BS EN 14694:2017EN 14694:2017 (E) 9 Key 1 Shaft with diameter (12 0,1) mm 2 Puncturing tool Cone hard

39、ened to 26 HRC to 31 HRC, surface even and unmarked Cone diameter (35 0,1) mm Cone height (65 0,1) mm Cone end point diameter (0,5 0,05) mm Figure 3 Puncturing tool BS EN 14694:2017EN 14694:2017 (E) 10 Key 1 Test specimen 2 Water 3 Membrane Figure 4 Example of equipment for determination of the resi

40、stance to dynamic water pressure BS EN 14694:2017EN 14694:2017 (E) 11 Dimensions in millimetres Top view Section A A Key d position of perforation Figure 5 Slotted disc of the slit pressure-testing device This page deliberately left blankThis page deliberately left blankBSI is the national body resp

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