BS EN 14498-2004 Products and systems for the protection and repair of concrete structures - Test methods - Volume and weight changes of injection products after air drying and wat.pdf

1、BRITISH STANDARDBS EN 14498:2004Products and systems for the protection and repair of concrete structures Test methods Volume and weight changes of injection products after air drying and water storage cyclesThe European Standard EN 14498:2004 has the status of a British StandardICS 91.080.40g49g50g

2、3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 14498:2004

3、This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49638 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 14498:2004.The UK participation in its preparation was e

4、ntrusted by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection and repair of concrete structures.A list of organizations represented on B/517/8 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. U

5、sers are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME

6、 EUROPENNEEUROPISCHE NORMEN 14498September 2004ICS 91.080.40English versionProducts and systems for the protection and repair of concretestructures - Test methods - Volume and weight changes ofinjection products after air drying and water storage cyclesProduits et systmes de protection et de rparati

7、on desstructures en bton - Mthodes dessai - Variations devolume et de poids lissue de cycles de schage lair etde conditionnement dans leauProdukte und Systeme fr den Schutz und dieInstandsetzung von Betontragwerken - Prfverfahren -nderungen von Volumen und Gewicht nach Wechsel-Beanspruchung durch Tr

8、ocknung an der Luft und Lagerungin WasserThis European Standard was approved by CEN on 16 April 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-

9、to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder t

10、he responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland,

11、Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-105

12、0 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14498:2004: ELicensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 2 Contents page 1 Scope 4 2 Normative reference

13、s 4 3 Terms and definitions .4 4 Test principle4 5 Apparatus .4 6 Sampling and preparation 5 7 Procedure .5 8 Expression of results 7 9 Test report 7 Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 3 Foreword This document (EN 14498:2004)

14、has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, the secretariat of which is held by DIN. It has been drafted by Sub-Committee 8 “Products and systems for the protection and repair of concrete structures“ (Secretariat AFNOR). This European Standard shall be given

15、the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of

16、the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spai

17、n, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 4 1 Scope This document describes a test method to determine the volume and weight changes of injection products used for swelling fitted filling of

18、 cracks, voids and interstices after air drying and water storage cycles. 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 referenc

19、ed document (including any amendments) applies. EN 196-1:1994, Methods of testing cement Part 1: Determination of strength. EN 1504-1:1998, Products and systems for the protection and repair of concrete structures - Definitions, requirements, quality control and evaluation of conformity - Part 1: De

20、finitions. prEN 1504-5:2001, Products and systems for the protection and repair of concrete structures - Definitions, requirements, quality control and evaluation of conformity - Part 5: Concrete injection. 3 Terms and definitions For the purposes of this document, the terms and definitions given in

21、 EN 1504-1:1998 and prEN 1504-5:2001 apply. 4 Test principle The volume and weight changes which occur during air drying and water storage, from 24 h after casting and onwards, are measured on prismatic specimens having dimensions of 5 mm x 40 mm x 160 mm. 5 Apparatus 5.1 Moulds complying with the r

22、equirements of 4.5 of EN 196-1:1994. 5.2 Apparatus for measuring the dimensions of the test specimens to an accuracy of 0,1 mm. 5.3 Balance capable of weighing 500 g to an accuracy of 0,01 g. 5.4 Water bath containing potable water for completely immersing the test specimens at a temperature of (21

23、2) C. The volume of the water bath is chosen to comply with requirements in 7.3.4. 5.5 Storage room for conditioning the test specimens, at a temperature of (21 2) C and a relative humidity of (60 10) %. 5.6 Support grid for supporting the specimens with a minimum of 5 mm clearance in a water bath o

24、r in air. 5.7 Air oven capable of maintaining the specified temperature to 2 C. The oven shall be fitted with forced-ventilation equipment. Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 5 6 Sampling and preparation 6.1 General Unless spe

25、cified to the contrary, not less than six prism specimens shall be prepared and tested. Three specimens shall be used for measuring the volume and weight changes occurring under the conditions described in 7.3.2, and three specimens for measuring the volume and weight changes occurring under the con

26、ditions described in 7.3.3. 6.2 Preparation of specimens The injection product shall be prepared and mixed in accordance with the manufacturers instructions. Immediately after mixing, it shall be poured into the moulds and the moulds covered with plastic film. The moulds shall be cured in the standa

27、rd laboratory climate for 24 h. The thickness shall normally be (5 1) mm. Should handling difficulties occur with specimens of this thickness, the thickness may be increased to (10 1) mm or (15 1) mm. 7 Procedure 7.1 Measurements of volume and weight 7.1.1 General Standard conditions of measurements

28、 shall be (21 2) C and (60 10) % relative humidity. 7.1.2 Measurements of weights in air The duration of measurement shall be as short as possible. In case of conditioning in water, the specimens shall be dabbed with a moist cloth to remove excess water. 7.1.3 Measurement of volume The volume is mea

29、sured as follows: by weighing the specimen in air: Ws; by measuring the apparent weight in water at (21 2) C of the specimen and the suspension wire: W(s + w)i; by measuring the apparent weight in water at (21 2) C of the suspension wire immersed at the same length : W(w)i. The volume in cm3is given

30、 by: 998,01w)i(s(w)is += WWWV where 0,998 is the specific gravity of water at (21 2) C, in 3cmg . Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 6 NOTE The measurement of the apparent weight of specimens conditioned in air should be made

31、after (120 5) s immersion. After the weighing, the specimens should be immediately surface dried by removing surface moisture with a moist towel. 7.2 Initial measurement The specimens shall be carefully removed from the moulds (24 1) h after mixing. The volume and weight of each of the specimens sha

32、ll be measured. 7.3 Conditioning 7.3.1 General After the initial measurement at (24 1) h, 3 specimens shall be submitted to conditioning regime A (7.3.2), and 3 specimens to conditioning regime B (7.3.3). 7.3.2 Conditioning regime A The specimens shall be stored for 14 days fully immersed in potable

33、 water at a temperature of (21 2) C. The volume and weight shall be measured at the following times: 1 h, 2 h, 4 h, 6 h, 24 h, 48 h, 72 h, 96 h, 168 h, 264 h, 312 h and 336 h. If the volume and weight of the specimens are not constant after 336 h (14 days), the immersion period shall be prolonged un

34、til a constant weight is reached. Constant weight is reached for this test when the weight variation during 3 consecutive measures at 24 h interval is less than 1 %. At the end of the immersion period, the volume and weight shall be measured. 7.3.3 Conditioning regime B The specimens shall be subjec

35、t to 10 wetting and drying cycles, as follows: 1 day drying in the oven at (50 2) C; 6 days storage fully immersed in potable water at a temperature of (21 2) C. The volume and weight shall be measured at the end of every cycle after the 6 days immersion. After the wetting and drying cycles the spec

36、imens shall be immersed in potable water at a temperature of (21 2) C until constant weight is reached, as defined in 7.3.2. At the end of the immersion period, the volume and weight shall be measured. 7.3.4 Storage conditions During immersion, the specimens shall be stored on the grid, so as not to

37、 restrict volume changes of the specimens under the test conditions. During air and water storage, a spacing of at least 100 mm shall be maintained between specimens to ensure uniform moisture or water exchange around the specimens. In addition, during water storage, the spacing between the specimen

38、s and the upper water level and between the specimens and the sides of the water bath shall be at least 100 mm. Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 7 8 Expression of results The change in volume, expressed in %, rounded to the

39、first decimal, is determined at each time, according to the following equation: 100=iittVVVV where Viis the initial volume ; Vtis the volume at time t. The change in weight, expressed in %, rounded to the first decimal, is determined at each time, according to the following equation: 100=iittWWWW wh

40、ere Wiis the initial weight; Wtis the final weight at time t. Upon completion of the conditioning, the test specimens shall be inspected visually for evidence of cracking or other phenomena. 9 Test report The test report shall contain the following information: a) a reference to this document; b) na

41、me and address of the test laboratory; c) identification number of the test report; d) name and address of the manufacturer or supplier of the product; e) name and identification marks or batch number of the product; f) date of supply of the product; g) date of preparation of the test specimens and

42、any deviation from the prescribed method of preparation; procedure of preparation of the test specimens (ratios of the several components, mixing equipment, ) and thickness of the specimens; h) conditions of storage of prepared specimens prior to test; i) date of test and details of the test equipme

43、nt used, including the make, type and capacity and the calibration details or the identification number of the apparatus; Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEN 14498:2004 (E) 8 j) the tests results: visual changes, individual and average values

44、 of changes in weight and volume at each time interval, changes in weight and volume presented in diagrams; k) accuracy data; l) date of test report and signature. Licensed Copy: Wang Bin, na, Mon Mar 05 02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Mon Mar 05

45、02:45:49 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN 14498:2004BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It

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