EN 413-2-2005 Masonry cement - Part 2 Test methods《圬工用水泥 第2部分 试验方法》.pdf

1、BRITISH STANDARDBS EN 413-2:2005Masonry cement Part 2: Test methodsThe European Standard EN 413-2:2005 has the status of a British StandardICS 91.100.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g4

2、0g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 413-2:2005This British Standard was published under the authority of the

3、 Standards Policy and Strategy Committee on 13 January 2006 BSI 13 January 2006ISBN 0 580 46740 6National forewordThis British Standard is the official English language version of EN 413-2:2005. It supersedes BS EN 413-2:1995 which is withdrawn.The UK participation in its preparation was entrusted b

4、y Technical Committee B/516, Cement and lime, to Subcommittee B/516/10, Masonry cement, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or Europea

5、n 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 does not purport to include all t

6、he 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/European committee any enquiries on th

7、e interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover.The BSI cop

8、yright date displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license fro

9、m IHS-,-,-EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 413-2 June 2005 ICS 91.100.10 Supersedes EN 413-2:1994 English version Masonry cement - Part 2: Test methods Ciment maonner - Partie 2: Mthodes dessai Putz- und Mauerbinder - Teil 2: Prfverfahren This European Standard was approved by CE

10、N on 29 April 2005. 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

11、may be obtained on application 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 translation under the responsibility of a CEN member into its own language and notified to the C

12、entral Secretariat has the same status as the official versions. 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,

13、 Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any

14、 means reserved worldwide for CEN national Members. Ref. No. EN 413-2:2005: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 413-2:2005 (E) 2 Contents Page Foreword 3 Introduc

15、tion . 4 1 Scope. 5 2 Normative references. 5 3 General requirements for testing 5 3.1 Laboratory. 5 3.2 Manufacturing tolerances for test equipment 5 3.3 Tolerances for test equipment in use . 5 3.4 Number of tests 6 4 Determination of setting time 6 4.1 General 6 4.2 Method A . 6 4.3 Method B . 6

16、5 Preparation of standard mortar. 7 5.1 Principle 7 5.2 Consistence of fresh mortar by plunger apparatus (reference method) 7 5.3 Consistence of fresh mortar by flow table (alternative method). 8 6 Determination of water retention. 9 6.1 Principle 9 6.2 Preparation 9 6.3 Apparatus 11 6.4 Procedure 1

17、2 6.5 Repeatability and reproducibility 12 7 Determination of air content 13 7.1 General 13 7.2 Pressure method (reference method) . 13 7.3 Alcohol method (alternative method) 14 Bibliography 17 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo r

18、eproduction or networking permitted without license from IHS-,-,-EN 413-2:2005 (E) 3 Foreword This European Standard (EN 413-2:2005) has been prepared by Technical Committee CEN/TC 51 “Cement and building limes”, the secretariat of which is held by IBN. This European Standard shall be given the stat

19、us of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2005, and conflicting national standards shall be withdrawn at the latest by December 2005. This European Standard supersedes EN 413-2:1994. EN 413 Masonry cement consists of the follow

20、ing Parts. Part 1: Composition, specifications and conformity criteria Part 2: Test methods The main differences between this European Standard and EN 413-2:1994 are: Exclusion of workability (cohesivity). Introduction of an optional setting time procedure using the specimen storage conditions (in a

21、ir) that were previously specified in EN 196-3:1994. This is necessary because the (under water) method specified in EN 196-3:2005, is not suitable for some masonry cements which have low clinker contents. Diameter of filter paper used in the water retention test increased from 100 mm to the more re

22、adily available 110 mm size. Specification introduced for non-woven tissue to be used in the water absorption test. Weighing precision in water content test increased from 1 g to 0,1 g. Improved description of procedure for filling of air content test apparatus. Introduction of precision statements

23、for determination of mortar standard consistency, water retention and air content. Clarification of requirements for retesting if mortar flow does not lie within the required range. Clarification of requirements for retesting if pairs of results for water retention or air content differ by more than

24、 twice the standard deviation of repeatability. Clarification of calibration procedures for flow table and air content apparatus. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria,

25、 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. Copyright European Committee for Sta

26、ndardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 413-2:2005 (E) 4 Introduction This European Standard includes additional test methods to those described in EN 196 Methods of testing cement that enable the perfor

27、mance of masonry cement to be assessed when used in mortar for bedding masonry units and for rendering and plastering. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 413-2:20

28、05 (E) 5 1 Scope This European Standard describes reference and alternative test methods to be used when testing masonry cements to assess their conformity to EN 413-1. It gives the tests on fresh mortar for consistence, water retention and air content. In the event of a dispute, only the reference

29、methods are 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) applies. EN 196-1

30、, Methods of testing cement Part 1: Determination of strength EN 196-3:2005, Methods of testing cement Part 3: Determination of setting time and soundness EN 459-2: 2001, Building lime Part 2: Test methods EN 22768-1, General tolerances - Part 1: Tolerances for linear and angular dimensions without

31、individual tolerance indications (ISO 2768-1:1989) 3 General requirements for testing 3.1 Laboratory Unless specifically stated to the contrary, all the tests described in this document shall be carried out in a laboratory where the air temperature is maintained at (20 2) C and the relative humidity

32、 at not less than 50 %. 3.2 Manufacturing tolerances for test equipment 3.2.1 Dimensions Figures indicating the specified requirements for apparatus used in the tests described in this document shall include essential dimensions for which manufacturing tolerances are given. Unless otherwise stated,

33、tolerance class m according to EN 22768-1 should be applied. NOTE All other dimensions are given for guidance. 3.2.2 Mass Specified masses shall have manufacturing tolerances within 1 % of the mass unless otherwise stated. 3.3 Tolerances for test equipment in use Tolerances applying to apparatus, wh

34、ich has been subjected to wear in use shall not exceed twice the corresponding manufacturing tolerance unless alternative requirements are specified. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without l

35、icense from IHS-,-,-EN 413-2:2005 (E) 6 3.4 Number of tests Where the test is one of a series subject to statistical control, determination of each property by a single test shall be the minimum required. Where the test is not part of a series subject to statistical control, two tests shall be perfo

36、rmed to determine each property. 4 Determination of setting time 4.1 General The setting time is determined by observing the penetration of a needle into a cement paste of standard consistence until it reaches a specified value. The setting time is determined in accordance with either method A (4.2)

37、 or method B (4.3). Method B is the reference method. 4.2 Method A The setting time is determined in accordance with EN 196-3. NOTE Experience has shown that the method specified in EN 196-3, in which the specimens are tested under water, is not suitable for some masonry cements which have low clink

38、er contents. 4.3 Method B 4.3.1 Test principle The equipment used and the specimen preparation procedures are as described in EN 196-3 but with the additional requirement for a room or a humidity cabinet of adequate size and maintained at (20 1) C and not less than 90 % relative humidity. 4.3.2 Init

39、ial setting time procedure Calibrate the Vicat apparatus with the needle, attached in advance of the test, by lowering the needle to rest on the base-plate to be used and adjusting the pointer to read zero on the scale. Raise the needle to the stand-by position. Fill a Vicat mould in accordance with

40、 5.2.2 of EN 196-3:2005 with paste of standard consistence mixed in accordance with 5.2.1 of EN 196-3:2005. Place the filled mould and base-plate in the room or humidity cabinet and after a suitable time, position the mould, base-plate and container under the needle of the Vicat apparatus. Lower the

41、 needle gently until it is in contact with the paste. Pause in that position for between 1 s and 2 s in order to avoid initial velocity or forced acceleration of the moving parts. Then release the moving parts quickly and allow the needle to penetrate vertically into the paste. Read the scale when p

42、enetration has ceased, or 30 s after the release of the needle, whichever is the earlier. Record the scale reading, which indicates the distance between the end of the needle and the base-plate, together with the time from zero. Repeat the penetration on the same specimen at conveniently spaced posi

43、tions, not less than 8 mm from the rim of the mould or 5mm from each other and at least 10 mm from the last penetration position, at conveniently spaced intervals of time, e.g. at 10 min intervals. Between penetrations keep the specimen in a room or humidity cabinet. Clean the Vicat needle immediate

44、ly after each penetration. Retain the specimen if determination of the final setting time is to be made. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-EN 413-2:2005 (E) 7 4.3.3

45、 Report initial setting time Report the time measured from zero at which the distance between the needle and the base-plate is (6 3) mm as the initial setting time of the cement to the nearest 5 min. If the initial setting time exceeds 6h determine the final setting time. 4.3.4 Final setting time pr

46、ocedure Invert the filled mould and follow the procedure described in 6.3 of EN 196-3:2005 with the specimen held in the room or humidity cabinet at controlled humidity rather than under water. 4.3.5 Report final setting time Report the time measured from zero at which the needle first penetrates on

47、ly 0,5 mm into the specimen as the final setting time of the cement, to the nearest 15 min. 5 Preparation of standard mortar 5.1 Principle The properties of fresh mortar made with masonry cement are assessed on standard mortar prepared in accordance with EN 196-1, but with the water content necessar

48、y for the standard consistence. The consistence is measured using the plunger apparatus (see 5.2) as the reference method to achieve the required value of penetration. A flow table test (see 5.3) is allowed as an alternative to the plunger test but it is important that the flow table spread equivale

49、nt to the required value of penetration is established, using the same type of masonry cement as that which is to be tested. 5.2 Consistence of fresh mortar by plunger apparatus (reference method) 5.2.1 Apparatus The mixer and ancillary equipment shall be as described in EN 196-1. The plunger apparatu