EN 459-2-2010 en Building lime - Part 2 Test methods《建筑石灰 第2部分 试验方法》.pdf

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1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 459-2:2010Building limePart 2: Test methodsBS EN 459-2:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 459-2:2010. Itsupersedes B

2、S EN 459-2:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/516/11, Lime.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a

3、 contract. Users are responsible for its correctapplication. BSI 2010ISBN 978 0 580 63306 5ICS 91.100.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November

4、 2010.Amendments issued since publicationDate Text affectedBS EN 459-2:2010EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 459-2 September 2010 ICS 91.100.10 Supersedes EN 459-2:2001English Version Building lime - Part 2: Test methods Chaux de construction - Partie 2: Mthodes dessai Baukalk - T

5、eil 2: Prfverfahren This European Standard was approved by CEN on 30 July 2010. 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 bi

6、bliographical references concerning such national standards may be obtained on application to the CEN 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 responsibili

7、ty of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,

8、Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Av

9、enue Marnix 17, B-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 459-2:2010: EBS EN 459-2:2010EN 459-2:2010 (E) 2 Contents Page Foreword 3Introduction .41 Scope 52 Normative references 53 Sampling .53.1 General

10、53.2 Sampling of powdered material .53.3 Sampling of granular material 53.4 Sampling of lime putty and milk of lime 53.5 Preparation of the test portion .64 General requirements for testing .64.1 Number of tests 64.2 Repeatability and reproducibility .74.3 Expression of masses, volumes, factors and

11、results 74.4 Blank determinations 74.5 Reagents .74.6 Evaluation of test results 85 Chemical analysis 85.1 Extraction with hydrochloric acid 85.2 Calcium oxide (CaO) and magnesium oxide (MgO) .95.3 Sulfate (expressed as SO3) 125.4 Free water 145.5 Gravimetric determination of carbon dioxide (CO2) (r

12、eference method) 155.6 Volumetric determination of carbon dioxide (CO2) (alternative method) . 185.7 Loss on ignition 215.8 Available lime 226 Physical tests 246.1 Particle size by dry sieving 246.2 Particle size by air-jet sieving 256.3 Bulk density . 276.4 Soundness . 306.5 Setting times . 376.6 R

13、eactivity . 416.7 Yield . 476.8 Standard mortar by mass and water demand for values of flow and penetration . 486.9 Water retention 536.10 Determination of air content 556.11 Compressive strength 57Annex A (informative) Example for the calculation of the results on sieving . 61Annex B (informative)

14、Precision data for the test methods . 62Bibliography . 64BS EN 459-2:2010EN 459-2:2010 (E) 3 Foreword This document (EN 459-2:2010) has been prepared by Technical Committee CEN/TC 51 “Cement and building limes”, the secretariat of which is held by NBN. This European Standard shall be given the statu

15、s of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject

16、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 459-2:2001. The following modifications have been made from EN 459-2:2001: description of chemical procedures for CaO, MgO, CO2gravimetrically, SO3and loss on

17、 ignition; amendments for the determinations of free water and available lime; description of the methods for particle size determination; description of the determination of setting times; amendments for the determination of strength; editorial changes were made and minor mistakes corrected. EN 459

18、, Building lime, consists of the following parts: 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 the testing of physical and mechanical properties in EN 459-2. For t

19、he testing of chemical properties of building limes, test methods described in EN 12485 have been incorporated into this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard

20、: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kin

21、gdom. BS EN 459-2:2010EN 459-2:2010 (E) 4 Introduction The objective in this European Standard 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 2768-1:19

22、89 should be applied (indications on drawings by “ISO 2768-m“). All dimensions are in millimetres. BS EN 459-2:2010EN 459-2:2010 (E) 5 1 Scope This European Standard describes the test methods for all building limes covered by EN 459-1:2010. This European Standard specifies the methods used for the

23、chemical analyses and the determination of physical properties of building limes. This document describes the reference methods and, in certain cases, an alternative method which can be considered to be equivalent. In the case of a dispute, only the reference methods are used. Any other methods may

24、be used provided they are calibrated, either against the reference methods or against internationally accepted reference materials, in order to demonstrate their equivalence. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated r

25、eferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1:2005, Methods of testing cement Part 1: Determination of strength EN 196-3, Methods of testing cement Part 3: Determination of setting times a

26、nd soundness EN 196-7, Methods of testing cement Part 7: Methods of taking and preparing samples of cement EN 459-1:2010, Building lime Part 1: Definitions, specifications and conformity criteria EN 932-1, Tests for general properties of aggregates Part 1: Methods for sampling EN ISO 6506-1:2005, Me

27、tallic materials Brinell hardness test Part 1: Test method (ISO 6506-1:2005) 3 Sampling 3.1 General Sampling shall be carried out as specified in 3.2 to 3.4 taking into account the need to minimize moisture and carbon dioxide absorption. Samples shall therefore be transported and stored in air-tight

28、 containers and all the handling shall be carried out as quickly as possible. 3.2 Sampling of powdered material Sampling shall be carried out in accordance with EN 196-7. 3.3 Sampling of granular material Sampling shall be carried out in accordance with EN 932-1. 3.4 Sampling of lime putty and milk

29、of lime The spot sample size shall be (10 5) dm3. Where lime putty or milk of lime is sampled, the increments shall be blended thoroughly. BS EN 459-2:2010EN 459-2:2010 (E) 6 3.5 Preparation of the test portion Before carrying out the analysis, the sample shall be reduced in mass by means of a sampl

30、e divider and/or by quartering to produce a homogeneous test sample of suitable mass for the intended determinations. Lime putty and milk of lime shall be dried before the chemical analysis (see 5.4.4.2). The sample preparation for the appropriate test is described in Table 1. Table 1 Sample prepara

31、tion for the single tests Test Clause in this standard Type and form of the building lime Sample preparation Chemical analysis 5 All types of building lime The sample of granular material shall be crushed and ground. All tests shall be performed on materials of a grain size 0,2 mm Grain size distrib

32、ution by sieving 6.1 and 6.2 Quicklime Material in the as-delivered state Grain size distribution by air-jet sieving 6.2 Hydrated lime, hydrated dolomitic lime, lime with hydraulic properties Material in the as-delivered state Bulk density 6.3 All types of building lime See 6.3.2 Soundness 6.4.2.1 a

33、nd 6.4.2.2 Hydrated lime, lime with hydraulic properties Material in the as-delivered state 6.4.2.3 Hydraulic lime with an SO3content of more than 3 % and up to 7 % Material in the as-delivered state 6.4.3 Hydrated lime, lime putty und hydrated dolomitic lime Material in the as-delivered state 6.4.4

34、 Quicklime, lime putty, dolomitic quicklime, hydrated dolomitic lime See 6.4.4.3.1 Setting times 6.5 Lime with hydraulic properties Material in the as-delivered state Reactivity 6.6 Quicklime The test shall be performed on materials of a grain size 0,2 mm. If 100 % of the material pass the 5 mm siev

35、e the product can alternatively be tested in the as-delivered state Yield 6.7 Quicklime See 6.7.2Mortar tests 6.8 to 6.10 Hydrated lime, hydrated dolomitic lime, lime with hydraulic properties Material in the as-delivered state Compressive strength 6.11 Lime with hydraulic properties Material in the

36、 as-delivered state 4 General requirements for testing 4.1 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 speci

37、fied 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. BS EN 459-2:2010EN 459-2:2010 (E) 7 Where the analysis is not part of a series subject to statis

38、tical control, the number of tests for determination of each chemical property shall be 2 (see also 4.3). In the case of a dispute, the number of tests for determination of each chemical property shall be 2 (see also 4.3). 4.2 Repeatability and reproducibility Repeatability Precision under repeatabi

39、lity conditions where independent test results are obtained with the same method on identical test items (material) in the same laboratory by the same operator using the same equipment within short intervals of time. Reproducibility Precision under reproducibility conditions where test results are o

40、btained with the same method on identical test items (material) in different laboratories with different operators using different equipment. Repeatability and reproducibility in this document (see Annex B) are expressed as repeatability standard deviation(s) and reproducibility standard deviation(s

41、) in e.g. absolute percent, grams, etc., according to the property tested. 4.3 Expression of masses, volumes, factors and results Express masses in grams to the nearest 0,001 g and volumes from burettes in millilitres to the nearest 0,05 ml. Express the factors of solutions, given by the mean of thr

42、ee 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. I

43、f the two test results differ by more than twice the standard deviation of repeatability, repeat the test and take the mean of the two closest test results. The results of all individual tests shall be recorded. 4.4 Blank determinations Carry out a blank determination without a sample, where relevan

44、t, following the same procedure and using the same amounts of reagents. Correct the results obtained for the analytical determination accordingly. 4.5 Reagents Use only reagents of analytical quality. References to water mean distilled or deionised water having an electrical conductivity 0,5 mS/m. U

45、nless otherwise stated percent means percent by mass. For the concentrated liquids used to make up the reagents in this standard the densities () are given in grams per millilitre at 20 C. The degree of dilution is always given as a volumetric sum, for example: dilute hydrochloric acid 1 + 2 means t

46、hat one volume of concentrated hydrochloric acid is to be mixed with two volumes of water. The concentrations of reference and standard volumetric solutions are specified as amount-of-substance concentrations, c (mol/l). BS EN 459-2:2010EN 459-2:2010 (E) 8 4.6 Evaluation of test results 4.6.1 Genera

47、l The chemical requirements for building limes are specified in EN 459-1:2010, Tables 2, 9, 16, 20 and 24. 4.6.2 Test results for quicklime For quicklime the specified values correspond to the finished product. 4.6.3 Test results for all other types For all other types (hydrated lime, lime putty, mi

48、lk of lime, lime with hydraulic properties) 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 total calcium oxide and magnesium oxide (5.2), magnesium oxide (5.2),

49、sulfate (5.3) and carbon dioxide (5.5 or 5.6) are for the products without subtraction of the free water and bound water content. To compare these values with EN 459-1:2010, Tables 2 or 9, 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 5.5 or 5.6 and the loss on ig