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BUILDING LIME - PART 2: TEST METHODS IRISH STANDARD I.S. EN 459-2:2002. Price Code. Údarás um Chaighdeáin Náisiúnta na héireann - PDF
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1 IRISH STANDARD I.S. EN 459-2:2002 ICS National Standards Authority of Ireland Dublin 9 Ireland Tel: (01) Tel: (01) BUILDING LIME - PART 2: TEST METHODS NSAI 2002 Údarás um Chaighdeáin Náisiúnta na héireann This Irish Standard was published under the authority of the National Standards Authority of Ireland and comes into effect on: January 12, 2002 NO COPYING WITHOUT NSAI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Price Code M
2 EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN October 2001 ICS Supersedes EN 459-2:1994 English version Building lime - Part 2: Test methods Chaux de construction - Partie 2: Méthodes d'essai Baukalk - Teil 2: Prüfverfahren This European Standard was approved by CEN on 16 February CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: rue de Stassart, CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. B-1050 Brussels Ref. No. EN 459-2:2001 E
3 Contents Foreword... 2 Introduction Scope Normative references Sampling General Sampling of powdered material Sampling of granular material Sampling lime putties Chemical analysis General requirements for testing Calcium and magnesium oxide (CaO + MgO) Magnesium oxide (MgO) Carbon dioxide (CO 2 ) Loss on ignition Sulfate (SO 3 ) Available lime Physical tests Compressive strength Fineness Soundness Setting times Standard mortar by volume and water demand for values of flow and penetration Water retention Determination of air content Bulk density Yield Reactivity Free water Page Foreword 2 This European Standard has been prepared by Technical Committee CEN/TC 51 "Cement and building of limes", the secretariat which is held by IBN. 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 April 2002, and conflicting national standards shall be withdrawn at the latest by April This European Standard supersedes EN 459-2:1994. Opposite to EN 459-2:1994 the following modifications are presented: editorial changes were made and minor mistakes corrected alternative method for particle size determination of hydrated limes (pren 12485:1996) vibrating table from EN 196-1:1994 was over taken Amendments for the determination of strength, chemical analysis and sampling of buildings limes European Standard EN 459 consists of the following Parts:
4 Part 1: Definitions, specifications and conformity criteria; Part 2: Test methods; Part 3: Conformity evaluation. The existing standards from the EN 196 series were used as a basis for EN 459-2:2001. However, given the chemical and physical properties of building limes, test methods other than those used for cement and masonry cement are necessary and have been incorporated into this European Standard. The precision data (repeatability and reproducibility) are not available in all CEN member countries at the time being. After implementation of the three parts of EN 459 CEN/TC 51 will collect the necessary information to provide the precision data for the next revision of EN According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Introduction For the European Standard for building lime EN 459-2:2001 the objective has been to adopt as many European standardized methods as possible and where this has not been possible to use other appropriate proven methods. Unless otherwise stated, tolerance class m of ISO should be applied (Indications on drawings by "ISO m"). All measurements are in millimetres. 1 Scope This European Standard describes the test methods for all building limes covered by EN 459-1:2001. This European Standard describes reference test methods and in some cases alternative test methods. In the event of a dispute, only the reference method is used. If methods other than the following are used it is necessary to show that they give results equivalent to those given by the reference methods. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the lates edition of the publication referred to applies (including amendments). EN 196-1:1994, Methods of testing cement Part 1: Determination of strength. EN 196-2, Methods of testing cement Part 2: Chemical analysis of cement. EN 196-3:1994, Methods of testing cement Part 3: Determination of setting time and soundness. EN 196-6:1989, Methods of testing cement Part 6: Determination of fineness. EN 196-7, Methods of testing cement Part 7: Methods of taking and preparing samples of cement. 3
5 EN ), Methods of testing cement Part 21: Determination of the chloride, carbon dioxide and alkali content of cement. EN 459-1:2001, Building lime Part 1: Definitions, specifications and conformity criteria. EN 932-1, Test for general properties of aggregates Part 1: Methods for sampling. EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696:1997). EN , Metallic materials - Brinell hardness test Part 1: Test method. EN , Stainless steels Part 2: Technical delivery conditions for sheet/plate and strip for general purposes. EN 12485, Chemicals used for treatment of water intended for human consumption Calcium carbonate, highcalcium lime and half-burnt dolomite Test methods. ISO 383, Laboratory glassware Interchangeable conical ground joints. ISO , General tolerances - Part 1: Tolerances for linear and angular dimensions without individual tolerance indications. ISO , Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method. ASTM C , Standard specification for flow table for use in tests of hydraulic cement. 3 Sampling 3.1 General Sampling shall be carried out as specified in 3.1 to 3.4 taking into account the need to minimize moisture and carbon dioxide absorption. 3.2 Sampling of powdered material Sampling shall be carried out in accordance with EN Before carrying out chemical analysis, the sample shall be reduced in mass by means of a sample divider and/or by quartering to produce a sub-sample of suitable mass for the intended determinations. Any coarse material shall be reduced in size to less than 0,3 mm. 3.3 Sampling of granular material Sampling shall be carried out in accordance with EN Before carring out chemical analysis, the sample shall be crushed, ground and reduced in mass to produce a subsample finer than 0,3 mm and of suitable mass for the intended determinations. 3.4 Sampling lime putties The spot sample size shall be (10 ± 5) dm 3. Where lime putties are sampled, the increments shall be blended thoroughly. 1 ) EN is currently being incorporated into EN
6 4 Chemical analysis 4.1 General requirements for testing Number of tests Analysis of a building lime may require the determination of a number of its chemical properties. For each determination one or more tests shall be carried out in which the number of measurements to be taken shall be as specified in the relevant clause of this standard. Where the analysis is one of a series subject to statistical control, determination of each chemical property by a single test shall be the minimum required. Where the analysis is not a part of a series subject to statistical control, the number of tests for determination of each chemical property shall be two (see also 4.3). In the case of a dispute, the number of tests for determination of each chemical property shall be two (see also 4.3) Expression of masses, volumes, factors and results Express masses in grams to the nearest 0,0001 g and volumes from burettes in millilitres to the nearest 0,05 ml. Express the factors of solutions, given by mean of three measurements, to three decimal places. Express the results, where a single test result has been obtained, as a percentage generally to two decimal places. Express the results, where two test results have been obtained, as the mean of the results, as a percentage generally to two decimal places. If the two test results differ by more than twice the standard deviation of repeatability (laboratory), repeat the test and take the mean of the two closest test results. The results of all individual tests shall be recorded Blank determinations Carry out a blank determination without a sample, where relevant, following the same procedure and using the same amounts of reagents. Correct the results obtained for the analytical determination accordingly Reagents All reagents shall be of an analytical grade appropriate for the method being used. The water used shall comply with the appropriate grade specified in EN ISO Evaluation of test results The chemical requirements for building limes are specified in Table 2 of EN 459-1:2001. For quicklime the specified values correspond to the finished product. For all other types (hydrated lime, lime putty, hydraulic and natural hydraulic lime) the values are based on the product after subtraction of its free water and bound water content. The values obtained by application of procedures described in this European Standard for calcium and magnesium oxide (4.2), magnesium oxide (4.3), carbon dioxide (4.4), sulfate (4.6) and available lime (4.7) are for the products without subtraction of the free water and bound water content. To compare these values with Table 2 of EN 459-1:2001, they shall first be corrected by multiplication by factor F. Factor F shall be determined in the following way. Determine the carbon dioxide content as described in 4.4 and the loss on ignition as described in 4.5. The loss on ignition is the sum of the free water, bound water and carbon dioxide, provided that the sample does not contain any highly volatile compounds or oxidizable constituents. Calculate the total (free + bound) water content W T as a percentage by mass of the sample using. 5
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