BS EN 14497-2004 Products and systems for the protection and repair of concrete structures - Test methods - Determination of the filtration stability《混凝土结构的保护和维修用产品和系统 试验方法 过滤稳定性的测.pdf

1、BRITISH STANDARDBS EN 14497:2004Products and systems for the protection and repair of concrete structures Test methods Determination of the filtration stabilityThe European Standard EN 14497:2004 has the status of a British StandardICS 91.080.40g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g

2、37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIBS EN 14497:2004This British Standard was published under the au

3、thority of the Standards Policy and Strategy Committee on 30 September 2006 BSI 2006ISBN 0 580 44543 7National forewordThis British Standard was published by BSI. It is the UK implementation of EN 14497:2004.The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete

4、, 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. Users are responsible for its correct applicati

5、on.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsLicensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14497September 200

6、4ICS 91.080.40English versionProducts and systems for the protection and repair of concretestructures - Test methods - Determination of the filtrationstabilityProduits et systmes pour la protection et la rparation desstructures en bton - Mthodes dessai - Dtermination dela stabilit de filtrationProdu

7、kte und Systeme fr den Schutz und dieInstandsetzung von Betontragwerken - Prfverfahren -Bestimmung der EindringstabilittThis 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

8、 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 Central Secretariat or to any CEN member.This European Standard exists in three official versions (Engli

9、sh, 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 Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech

10、Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALIS

11、ATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14497:2004: ELicensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled

12、 Copy, (c) BSIEN 14497:2004 (E) 2 Contents page Foreword .3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Test principle .4 5 Significance and use.4 6 Apparatus .5 7 Sampling and preparation 5 8 Procedure .5 9 Expression of results 6 10 Report .6 Licensed Copy: Wang Bin, na, Wed Dec

13、 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14497: 2004 (E) 3 Foreword This document (EN 14497:2004) 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 system

14、s for the protection and repair of concrete structures“ (Secretariat AFNOR). 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 March 2005, and conflicting national standards shall be withdrawn at th

15、e latest by March 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ir

16、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14497:2004 (E) 4 1 Scope This document describes

17、 a test method to determine the filtration stability of cementitious injection products. This test can also be used: to check the filtration stability and workable time in situ with the used mixing equipment, mixing time and temperature. for assessment of mixing stability and required mixing time, w

18、ith the mixing equipment used. 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 (including any amendments) appl

19、ies. 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: Definitions. prEN 1504-5:2001, Products and systems for the protection and repair of concrete structures Definitions, require

20、ments, quality control and evaluation of conformity Part 5: Concrete injection. ISO 565, Test sieves - Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of openings. 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1504-1:1

21、998 and prEN 1504-5:2001 and the following apply. 3.1 filtration stability ability of a cementitious injection product to pass constrictions in the flow path and to enter cracks without agglomeration Test principle The cementitious injection product is drawn into a filtration device by suction and t

22、hen pressed out into a measuring vessel. The amount that has passed the filter is measured and registered as a measure of filtration stability. The filter consists of a woven metal wire cloth. The cloth shall have a mesh width of 32 m, 45 m, 75 m, 100 m or 125 m, depending on the expected performanc

23、e of the product to be tested. 4 Significance and use The most significant limitation to the penetrability of a cementitious injection product in a fine crack is the tendency of cement grains to agglomerate into an impermeable filter cake. Clogging of the crack can occur by a combination of several

24、factors including: large cement grains too large for the crack; poor initial dispersion of the cement grains; Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14497: 2004 (E) 5 agglomeration when the grout is exposed to filtration situations such as entra

25、nces to fine cracks or porous material. This test can also be used: for assessment of mixing ability and required mixing time, with the mixing equipment used; for determination of pot life; to check the filtration stability and workable time in situ with the used mixing equipment, mixing time and te

26、mperature. 5 Apparatus 5.1 Suction filtration device, according to Figure 1. The body shall be made of non-corroding metal. 5.2 Woven metal wire cloths with mesh apertures of 125 m, 100 m, 75 m, 45 m and 32 m according to ISO 565. 5.3 Graduated beaker with an internal diameter of (105 5) mm and a he

27、ight of at least 140 mm. 5.4 Measuring cylinder, with a capacity of 500 ml. 5.5 Stop-watch with an accuracy of 1 s. 5.6 Cementitious injection product mixer. 5.7 Thermometer with an accuracy of 0,5 C. 6 Sampling and preparation The temperature of the dry materials and mixing water shall be (21 2) C;

28、 the mixing procedure shall be in accordance with the manufacturers instructions; if it is required to test the mixture after a longer holding period, continue mixing of the remaining portion at slow speed for the specified time, If necessary (given by the manufacturers instruction). 7 Procedure The

29、 standard conditions of test shall be (21 2) C and (60 10) % ; The woven metal wire cloth in question (125 m, 100 m ,75 m, 45 m or 32 m) is fixed to the filtration suction device; The determination shall be made in duplicate. Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrol

30、led Copy, (c) BSIEN 14497:2004 (E) 6 the product is poured into a graduated beaker to the 1,0 l graduation mark within (5 1) min of the completion of mixing, unless otherwise stated. The suction filtration device is immersed in the grout in such a way that the bottom of the suction device is situate

31、d at half the height of the injection product fiilling level (see Figure 2). The handle of the suction device is immediately drawn up. This shall be done with a constant speed and the whole procedure shall take (5 2) s. The suction device is kept immersed in the same position for (20 5) s further. T

32、hen the suction device is taken up from the graduated beaker and the content of the suction device pumped into the measuring vessel. The suction filtration device is cleaned by suction and pumping water through the device several times directly after the test. The remaining part in the vessel, which

33、 has earlier been tested, is not allowed to be tested again;the volumes passing through the mesh into the device are measured in ml with an accuracy of 5ml. the procedure starts with the 125 m metal wire cloth and if the suction device is completely filled (300 ml) the procedure is repeated for the

34、following wire cloth and so forth, until the volume passing through the sieve is less than 20 ml; the repetition shall be made within 3 min. If one particular mesh size is expected to be suitable, the remaining wire cloths may be omitted. If the test is carried out with different mesh sizes it is ad

35、visable to have one device for each size of mesh. 8 Expression of results The volumes passing through the mesh into the device are measured in ml with an accuracy of 5 ml. The determination shall be made in duplicate, for each selected mesh/size. 9 Report The test report shall contain the following

36、informations: a) reference to the test method standard; b) name and address of the test laboratory; c) identification number and date 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 su

37、pply of the product; g) procedure of mixing the product (water content, description of mixing equipment, duration of mixing); h) time from the completion of the mixing until the test was made; i) date of test and details of the test equipment used, including the make, type and capacity and the calib

38、rations details or the identification number of the apparatus; j) test results: individual and average values measured for each selected metal wire cloth; k) accuracy data; l) date of test report and signature. Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) B

39、SIEN 14497:2004 (E)7Dimensionsin millimetresKey1 Metal tube 2 Handle 3 Pistonrod 4 Woven metal wire cloth 5 Sleeve 1 “Gaz11f.p.p./Inside diameter:25,4(1“) 6 Pistonrubber 7 Outlet port 8 Nut with securitycollar inpolyamide. (M.8) 9 Stop nut. (M.8) Figure1 Suction filtration deviceLicensed Copy: Wang

40、Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIEN 14497:2004 (E) 8 Key 1 Metal tube 2 Handle 3 Piston rod 4 Woven metal wire cloth 5 Beaker 6 injection product Figure 2 Suction filtration device handled in injection product Licensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT

41、+00:00 2006, Uncontrolled Copy, (c) BSIblankLicensed Copy: Wang Bin, na, Wed Dec 13 01:13:03 GMT+00:00 2006, Uncontrolled Copy, (c) BSIBS EN 14497:2004BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standard

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