BS EN 14406-2004 Products and systems for the protection and repair of concrete structures - Test methods - Determination of the expansion ratio and expansion evolution《混凝土结构的保护和维修.pdf

1、BRITISH STANDARD BS EN 14406:2004 Products and systems for the protection and repair of concrete structures Test methods Determination of the expansion ratio and expansion evolution The European Standard EN 14406:2004 has the status of a British Standard ICS 91.080.40 BS EN 14406:2004 This British S

2、tandard was published under the authority of the Standards Policy and Strategy Committee on 28 September 2004 BSI 28 September 2004 ISBN 0 580 44496 1 National foreword This British Standard is the official English language version of EN 14406:2004. The UK participation in its preparation was entrus

3、ted by Technical Committee B/517, Concrete, to Subcommittee B/517/8, Protection and repair of concrete structures, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which imple

4、ment international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication doe

5、s not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Europea

6、n committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages

7、 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14406 September2004 ICS91.080.40 Englishversion Productsandsystemsfort

8、heprotectionandrepairofconcrete structuresTestmethodsDeterminationoftheexpansionratio andexpansionevolution Produitsetsystmespourlaprotectionetlarparationdes structuresenbtonMthodesdessaiDterminationdu rapportdexpansionetdelvolutiondelexpansion ProdukteundSystemefrdenSchutzunddie InstandsetzungvonBe

9、tontragwerkenPrfverfahren BestimmungdesAusdehnungsverhltnissesundder Ausdehnungsentwicklung ThisEuropeanStandardwasapprovedbyCENon16April2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithouta

10、nyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCEN

11、memberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,

12、Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCE

13、NnationalMembers. Ref.No.EN14406:2004:EEN 14406:2004 (E) 2 Contents page Foreword3 1 Scope4 2 Normative references4 3 Terms and definitions .4 4 Test principle4 5 Apparatus.5 6 Sampling and preparation5 7 Procedure.5 rpxE 8noisse fo tlusers6 8 Report .7 :60441 NE4002 (E) 2 stnetnoC egap weroFdro.3.

14、epocS 14 vitamroN 2e ferenersec.4. 3 Tesnoitinifed dna smr 4. T 4tse elpicnirp.4. A 5papsutar5. gnilpmaS 6 dna perpoitaran.5. corP 7erude5. 8 Expression of results6 8 Report .7 EN 14406:2004 (E) 3 Foreword This document (EN 14406:2004) has been prepared by Technical Committee CEN/TC 104 “Concrete an

15、d 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 the status of a national standard, either by publication of an i

16、dentical 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 the following countries are bound to implement this European Sta

17、ndard: 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, Spain, Sweden, Switzerland and United Kingdom. EN 14406:2004 (E) 4 1

18、 Scope This document describes a test method to determine the expansion ratio and rate of injection products intended for ductile filling of wet cracks, voids and interstices. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated

19、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 o

20、f 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. 3 Terms and definitions For the purposes of this document, the terms

21、 and definitions given in EN 1504-1:1998 and prEN 1504-5:2001 and the following apply. 3.1 final expansion ratio ratio of the volume of reacted product and the initial volume of the unreacted injection products3.2 expansion evolution ratio of the volume of reacting product and the initial volume of

22、the unreacted injection products as a function of time 4 Test principle Water is added at a ratio of 5 % by weight to the mixed injection products. The ensuing reaction is measured as a function of the unrestricted expansion of the reacting materials in one direction. NOTE 1 For special purposes, th

23、e product can be tested with other water contents (e.g. 10 %, 15 % or even 50 %). NOTE 2 The test can be used to indicate the expansion properties of a product, e.g. induction time, general behaviour of the product during the expansion, and end properties of the expanded product. The expansion ratio

24、 should not be considered as a quality evaluation and a performance related characteristic. EN 14406:2004 (E) 5 5 Apparatus 5.1 Expansion measuring vessel, consisting of: a clear acrylic pipe, inner diameter of (48 2) mm. The height of the tube e.g. 400mm, shall be adjusted to the expansion of the m

25、aterial; a tool (e.g. ruler) fixed to the pipe, for measuring the height of the (expanding) product, with an accuracy of 1 mm;a polymeric e.g. polyethylene, bottom provided with a hole (20 1) mm depth, with a diameter slightly higher than the outer diameter of the pipe; a plastic film, to seal the i

26、nserted tube into the bottom. 5.2 Stop watch with an accuracy of 1 s. 5.3 Mixing equipment. 5.4 Pipette, which allows to add water with an accuracy of 5 % relative to the requested amount. 5.5 Weighing device, capable of weighing the expansion measuring vessel to the nearest 0,01 g. 6 Sampling and p

27、reparation The temperature of the injection product and mixing water shall be (21 2) C. If two component products have to be tested, the mixture of the two components (ratio of the components, mixing procedure) shall be in accordance with the manufacturers instructions. For catalysed products, the c

28、atalyst content shall be selected to be at the minimum of the range recommended by the manufacturer. 7 Procedure The standard conditions of test shall be (21 2) C and (60 10) % relative humidity. Immediately after the mixing of the injection product, a quantity of product sufficient to achieve a hei

29、ght of (20 1) mm is poured into the pipe. The quantity of water to be added is determined by weighing before and after adding the product, and by considering that the mixture shall contain 5 % of water in weight (i.e. 5 g for 100 g of product). The mixing equipment, mounted on a drilling machine, is

30、 placed in the pipe. The water is added with a pipette, assuming a specific weight of 1 000 kg x m -3 . The mixing starts immediately. The speed is chosen to approximately 400 rpm and the mixing time to 10 s. The following measurements are to be made: initial height H iof the product; maximum height

31、 H mof the expanded product; EN 14406:2004 (E) 6 at least 5 intermediate heights H twell spread over the period of expanding; final height H f , which is the value of height measured 1 h after reaching the maximum height. The heights are to be measured to the top of the foam. Furthermore, observatio

32、ns concerning the general behaviour of the product shall be made Visual observations and the homogeneity of the expanded product shall be recognised, such as large bubbles, asymmetrical rise of the expanding product, as well collapse (reduction of volume not related to drying and thermal shrinkage).

33、 At least three tests shall be performed. Expression of results The final expansion ratio E fof the product is expressed as follows: i f f H H E = where H fis the final height of the product; H iis the initial height of the product. The rate of expansion is presented in diagrams E tf(t) where E tis

34、the expansion at time t, and is given by: i t t H H E = where H tis the height of the product at time t (s); H iis the initial height of the product. The induction time, which is the time from end of mixing until beginning of expansion. The period of time to reach maximum expansion, i.e. height H m

35、. EN 14406:2004 (E) 7 8 Report The test report shall contain the following informations: a) a reference to this document; b) name 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 identific

36、ation marks or batch number of the product; f) date of supply of the product; g) date of preparation of the test specimens and any deviation from the prescribed method of preparation; procedure of mixing of the product and mixing with water (ratio of the components and/or catalyst, description of mi

37、xing equipment, duration of mixing); h) conditions of storage of prepared specimens prior to test; i) date of test and details of the test equipment used, including the make, type and capacity and the calibrations details or the identification number of the apparatus; j) the test results individual

38、and average values of expansion ratio; rate of expansion, presented in diagrams; induction time, individual and average values; time to reach maximum expansion, individual and average values; observations concerning the general behaviour of the product; observations concerning the elasticity or brit

39、tleness of the expanded product; k) accuracy data; l) date of test report and signature. BS EN 14406:2004 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards

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