EN 12390-8-2009 en Testing hardened concrete - Part 8 Depth of penetration of water under pressure《硬化混凝土试验 第8部分 加压水渗透深度》.pdf

《EN 12390-8-2009 en Testing hardened concrete - Part 8 Depth of penetration of water under pressure《硬化混凝土试验 第8部分 加压水渗透深度》.pdf》由会员分享，可在线阅读，更多相关《EN 12390-8-2009 en Testing hardened concrete - Part 8 Depth of penetration of water under pressure《硬化混凝土试验 第8部分 加压水渗透深度》.pdf（10页珍藏版）》请在麦多课文档分享上搜索。

1、BS EN12390-8:2009ICS 91.100.30,NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDTesting hardenedconcretePart 8: Depth of penetration of waterunder pressureThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 May

2、 2009 BSI 2009ISBN 978 0 580 58800 6Amendments/corrigenda issued since publicationDate CommentsBS EN 12390-8:2009National forewordThis British Standard is the UK implementation of EN 12390-8:2009. Itsupersedes BS EN 12390-8:2000 which is withdrawn.The UK participation in its preparation was entruste

3、d to TechnicalCommittee B/517/1, Concrete production and testing.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.

4、Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 12390-8:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12390-8February 2009ICS 91.100.30 Supersedes EN 12390-8:2000 English VersionTesting hardened concrete - Part 8: Depth of penetration ofwater under press

5、ureEssai pour bton durci - Partie 8: Profondeur de pntrationdeau sous pressionPrfung von Festbeton - Teil 8: Wassereindringtiefe unterDruckThis European Standard was approved by CEN on 27 December 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the cond

6、itions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three

7、official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austri

8、a, Belgium, Bulgaria, 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 COMMITTEE

9、 FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12390-8:2009: EBS EN 12390-8:2009EN 12390-8:200

10、9 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Principle 4 4 Apparatus .4 5 Specimen 6 6 Procedure .6 7 Test result .6 8 Test report 6 9 Precision .7 BS EN 12390-8:2009EN 12390-8:2009 (E) 3 Foreword This document (EN 12390-8:2009) has been prepared by Technical Committee CEN/T

11、C 104 “Concrete and related products”, the secretariat of which is held by DIN. 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 August 2009, and conflicting national standards shall be withdrawn a

12、t the latest by August 2009. Attention is drawn to the possibility that some of the elements 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 12390-8:2000. The standard ha

13、s been restricted to tests on specimens cured in water. This standard is one of a series concerned with testing concrete. The series EN 12390 includes the following parts: EN 12390 Testing hardened concrete Part 1: Shape, dimensions and other requirements for specimens and moulds; Part 2: Making and

14、 curing specimens for strength tests; Part 3: Compressive strength of test specimens; Part 4: Compressive strength - Specification for testing machines; Part 5: Flexural strength of test specimens; Part 6: Tensile splitting strength of test specimens; Part 7: Density of hardened concrete; Part 8: De

15、pth of penetration of water under pressure. The following amendments have been made to the 2000-10 edition of this standard: editorial revision According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Stan

16、dard: Austria, Belgium, Bulgaria, 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 the United Kingdom.

17、 BS EN 12390-8:2009EN 12390-8:2009 (E) 4 1 Scope This European Standard specifies a method for determining the depth of penetration of water under pressure in hardened concrete which has been water cured. 2 Normative references The following referenced documents are indispensable for the application

18、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12390-2, Testing hardened concrete Part 2: Making and curing specimens for strength tests 3 Principle Water is applied

19、 under pressure to the surface of hardened concrete. The specimen is then split and the depth of penetration of the waterfront is measured. 4 Apparatus 4.1 Testing equipment The test specimen, of given dimensions, shall be placed in any suitable equipment in such a manner that the water pressure can

20、 act on the test area and the pressure applied can be continuously indicated. An example of a test arrangement is shown in Figure 1. NOTE 1 It is preferable that the apparatus should allow the other surfaces of the test specimen to be observed. NOTE 2 The water pressure may be applied to the surface

21、 of the test specimen either from the bottom, or the top. A watertight seal shall be provided, made of rubber or other similar material. The dimensions of a test area shall be approximately half of the length of the edge or diameter of the test surface. BS EN 12390-8:2009EN 12390-8:2009 (E) 5 Dimens

22、ions in milimetres Key 1 Packing piece 2 Sealing ring 3 Screwed on plate 4 Screw-threaded rod 5 Water under pressure 6 Screwed on plate Figure 1 Example of test arrangement BS EN 12390-8:2009EN 12390-8:2009 (E) 6 5 Specimen The specimen shall be cubic, cylindrical or prismatic with the minimum dimen

23、sion of the surface of the specimen to be tested not less than 150 mm and no other dimension less than 100 mm. 6 Procedure 6.1 Preparation of the test specimen Immediately after the specimen is de-moulded, roughen the surface to be exposed to water pressure, with a wire brush and cure the specimen u

24、nder water in accordance with the procedures given in EN 12390-2. 6.2 Application of water pressure The test shall be started when the specimen is at least 28 days old. Do not apply the water pressure to a trowelled surface of a specimen. Place the specimen in the apparatus and apply a water pressur

25、e of (500 50) kPa for (72 2) h. During the test, periodically observe the appearance of the surfaces of the test specimen not exposed to the water pressure to note the presence of water. If leakage is observed then consider the validity of the result and record the fact. NOTE The use of tap water is

26、 satisfactory. 6.3 Examination of specimen After the pressure has been applied for the specified time, remove the specimen from the apparatus. Wipe the face on which the water pressure was applied to remove excess water. Split the specimen in half, perpendicularly to the face on which the water pres

27、sure was applied. When splitting the specimen, and during the examination, place the face of the specimen exposed to the water pressure on the bottom. As soon as the split face has dried to such an extent that the water penetration front can be clearly seen, mark the water front on the specimen. Mea

28、sure the maximum depth of penetration under the test area and record it to the nearest mm. 7 Test result The maximum depth of penetration, expressed in mm, is the test result. 8 Test report The report shall include: a) identification of the test specimen; b) date of start of the test; c) description

29、 of the specimen (shape and dimensions); d) direction of application of water pressure with respect to the casting direction; e) maximum depth of penetration, in mm; f) any leakage and consideration of the validity of the result; (if appropriate) g) any deviation from the standard test method; BS EN

30、 12390-8:2009EN 12390-8:2009 (E) 7 h) a declaration by the person technically responsible for the test that it was carried out in accordance with this document, except as noted in item g). 9 Precision There is no precision data available. BS EN12390-8:2009BSI GroupHeadquarters 389Chiswick High Road,

31、London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards InstitutionBSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at theinternational level. It is incorporated by Royal Charter.RevisionsBrit

32、ish Standards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments oreditions.It is the constant aim of BSI to improve the quality of our products and services.We would be grateful if anyone finding an inaccuracy or ambiguity while

33、usingthis British Standard would inform the Secretary of the technical committeeresponsible, the identity of which can be found on the inside front cover. Tel:+44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensuresthat subscribers aut

34、omatically receive the latest editions of standards.Buying standardsOrders for all BSI, international and foreign standards publications should beaddressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 89967001 Email: You may also buy directly using a debit/creditcard from the BSI

35、Shop on the Website http:/ response to orders for international standards, it is BSI policy to supply theBSI implementation of those that have been published as British Standards,unless otherwise requested.Information on standardsBSI provides a wide range of information on national, European andinte

36、rnational standards through its Library and its Technical Help to ExportersService. Various BSI electronic information services are also available whichgive details on all its products and services. Contact Information Centre. Tel:+44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: Subscribing membe

37、rs of BSI are kept up to date with standards developmentsand receive substantial discounts on the purchase price of standards. For detailsof these and other benefits contact Membership Administration. Tel: +44 (0)208996 7002 Fax: +44 (0)20 8996 7001 Email: Information regarding online access to Brit

38、ish Standards via British StandardsOnline can be found at http:/ information about BSI is available on the BSI website at http:/.CopyrightCopyright subsists in all BSI publications. BSI also holds the copyright, in theUK, of the publications of the international standardization bodies. Except asperm

39、itted under the Copyright, Designs and Patents Act 1988 no extract maybe reproduced, stored in a retrieval system or transmitted in any form or by anymeans electronic, photocopying, recording or otherwise without prior writtenpermission from BSI.This does not preclude the free use, in the course of

40、implementing the standard,of necessary details such as symbols, and size, type or grade designations. Ifthese details are to be used for any other purpose than implementation then theprior written permission of BSI must be obtained.Details and advice can be obtained from the Copyright and Licensing Manager.Tel: +44 (0)20 8996 7070 Email: