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、37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 14497:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2006 BSI 2006ISBN 0
3、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, to Subcommittee B/517/8, Protection and repair of concrete structures.A list of organizat
4、ions 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 application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendme
5、nts issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 14497September 2004ICS 91.080.40English versionProducts and systems for the protection and repair of concretestructures - Test methods - Determination of the filtrationstabilityProduits et systmes pou
6、r la protection et la rparation desstructures en bton - Mthodes dessai - Dtermination dela stabilit de filtrationProdukte und Systeme fr den Schutz und dieInstandsetzung von Betontragwerken - Prfverfahren -Bestimmung der EindringstabilittThis European Standard was approved by CEN on 16 April 2004.CE
7、N 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-to-date lists and bibliographical references concerning such nationalstandards may be obtained on appli
8、cation 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 the responsibility of a CEN member into its own language and notified to the Central Secretariat has the
9、 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,S
10、lovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES 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 n
11、ational Members.Ref. No. EN 14497:2004: EEN 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 EN 14497:
12、 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 systems for the protection and repair of concrete structures“ (Secreta
13、riat 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 the latest by March 2005. According to the CEN/CENELEC Internal Re
14、gulations, 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, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
15、 Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14497:2004 (E) 4 1 Scope This document describes a test method to determine the filtration stability of cementitious injection products. This test can also be used: to check the filtration stability and
16、workable time in situ with the used mixing equipment, mixing time and temperature. for assessment of mixing stability and required mixing time, with the mixing equipment used. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated
17、references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1504-1:1998, Products and systems for the protection and repair of concrete structures Definitions, requirements, quality control and evaluation of
18、 conformity Part 1: Definitions. 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. ISO 565, Test sieves - Metal wire cloth, perforated metal plate and electro
19、formed sheet Nominal sizes of openings. 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1504-1:1998 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 pa
20、th and to enter cracks without agglomeration Test principle The cementitious injection product is drawn into a filtration device by suction and then 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
21、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 performance 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 cr
22、ack is the tendency of cement grains to agglomerate into an impermeable filter cake. Clogging of the crack can occur by a combination of several factors including: large cement grains too large for the crack; poor initial dispersion of the cement grains; EN 14497: 2004 (E) 5 agglomeration when the g
23、rout is exposed to filtration situations such as entrances 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 s
24、itu with the used mixing equipment, mixing time and temperature. 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 b
25、eaker with an internal diameter of (105 5) mm and a height 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
26、 the dry materials and mixing water shall be (21 2) C; 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 (gi
27、ven by the manufacturers instruction). 7 Procedure The 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. EN 14497:2004 (E) 6
28、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 situated at half the height of the injection
29、 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. Then the suction device is taken up fr
30、om 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 has earlier been tested, is not allo
31、wed 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 following wire cloth and so forth, un
32、til 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 advisable to have one device for each s
33、ize 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 informations: a) reference to the tes
34、t 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 supply of the product; g) procedure of
35、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 calibrations details or the identification
36、 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. EN 14497:2004 (E) 7 Dimensions in millimetres Key 1 Metal tube 2 Handle 3 Piston rod 4 Woven metal wire cloth 5 Sleeve 1 “Gaz
37、11f.p.p./Inside diameter:25,4 (1“) 6 Piston rubber 7 Outlet port 8 Nut with security collar in polyamide. (M.8) 9 Stop nut. (M.8) Figure 1 Suction filtration device EN 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 filtr
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