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1、BRITISH STANDARD BS EN 13454-2:2003 Incorporating amendment no. 1 Binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate Part 2: Test methods The European Standard EN 13454-2:2003, incorporating amendment A1:2007, has the status of a British Standard ICS 91.1
2、00.10; 91.100.50 ? Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN 13454-2:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 March 2004 BSI
3、2007 ISBN 978 0 580 60111 8 National foreword This British Standard is the UK implementation of EN 13454-2:2003, incorporating amendment A1:2007. The UK participation in its preparation was entrusted by Technical Committee B/544, Plastering, rendering, dry lining, to Subcommittee B/544/1,Gypsum plas
4、ters, cast gypsum and ancillaries. A list of organizations represented on this subcommittee 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 Briti
5、sh Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments 1735728 September 2007Implementation of CEN amendment A1:2007 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontroll
6、ed Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13454-2:2003+A1 July 2007 ICS 91.100.10; 91.100.50 Supersedes EN 13454-2:2003 English Version Binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate - Part 2: Test methods Liants, liants co
7、mposites et mlanges fabriqus en usine base de sulfate de calcium pour chapes de sol - Partie 2: Mthodes dessai Calciumsulfat-Binder, Calciumsulfat-Compositbinder und Calciumsulfat-Werkmrtel fr Estriche - Teil 2: Prfverfahren This European Standard was approved by CEN on 1 September 2003 and includes
8、 Amendment 1 approved by CEN on 22 June 2007. 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 concernin
9、g 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 responsibility of a CEN member into its own la
10、nguage 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
11、 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: rue de Stassart, 36 B-1050 Brussels 2007 CEN
12、All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13454-2:2003+A1:2007: E Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (
13、E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references4 3 Test conditions and sampling4 3.1 General requirements for testing.4 3.1.1 Water.4 3.1.2 Apparatus .4 3.2 Sampling for binders (CAB, CAC)5 3.3 Sampling for factory made mixtures (CA).5 4 Test methods for binders (CAB ; CAC) .5 4.1 Cont
14、ent of calcium sulfate5 4.1.1 Principle5 4.1.2 Apparatus .5 4.1.3 Reagents.6 4.1.4 Procedure .6 4.2 Determination of pH.7 4.3 Determination of setting time.7 4.3.1 Principle7 4.3.2 Apparatus .7 4.3.3 Standard consistence test7 4.3.4 Procedure .7 4.3.5 Setting time test.8 4.4 Determination of strengt
15、hs.9 4.4.1 Apparatus .9 4.4.2 Procedure .11 4.4.3 Water demand for flow table value 12 4.4.4 Preparation of test specimens .12 4.4.5 Testing the specimens13 4.5 Determination of shrinkage and swelling .14 4.5.1 Principle14 4.5.2 Apparatus .15 4.5.3 Preparation and storage of the specimens.16 4.5.4 M
16、easuring of the specimens 16 5 Test method for factory made mixtures (CA) .17 5.1 Determination of pH value 17 5.2 Working time17 5.2.1 Flowing mixture .17 5.2.2 Stiff mixture18 5.3 Determination of strength.18 5.3.1 Composition of the test sample.18 5.3.2 Flexural and compressive strength.18 5.4 De
17、termination of shrinkage and swelling .18 6 Test report18 Bibliography20 Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (E) 3 Foreword This document (EN 13454-2:2003+A1:2007) has been p
18、repared by Technical Committee CEN/TC 241 “Gypsum and gypsum based products”, the secretariat of which is held by AFNOR. This document shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2008 and conflicting nationa
19、l standards shall be withdrawn at the latest by January 2008. This document includes Amendment 1 approved by CEN on 2007-06-22. This document supersedes EN 13454-2:2003. The start and finish of text introduced or altered by amendment is indicated in the text by tags ! “. !deleted text“ The European
20、Standard EN 13454 for binders, composite binders and factory made mixtures for floor screeds based on calcium sulfate consists of two parts: Part 1: Definitions and requirements Part 2: Test methods The requirements in prEN 13454-1 are based on the results of tests according to EN 13454-2 on binders
21、, composite binders and factory made mixtures for floor screeds based on calcium sulfate. This European Standard describes test methods for binders, composite binders and factory made mixtures where the principal active component is calcium sulfate. According to the CEN/CENELEC Internal Regulations,
22、 the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,
23、 Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (E) 4 1 Scope This European Standar
24、d describes the test methods for binders and composite binders for floor screeds based on calcium sulfate specified in prEN 13454-1. This European Standard describes the test methods for factory made mixtures for floor screeds based on calcium sulfate specified in EN 13813. This European Standard de
25、scribes reference test methods. If other than these methods and conditions are used, it is necessary to show that they give results equivalent to those given by the reference methods. In the event of a dispute, only the reference test method is used. 2 Normative references This European Standard inc
26、orporates 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 Eu
27、ropean Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). !EN 196-1:2005“, Methods of testing cement Part 1 : Determination of strength !EN 196-3:2005, Methods of testing cement - Pa
28、rt 3: Determination of setting times and soundness“ EN 196-7:1989, Methods of testing cement Part 7: Methods of taking and preparing samples of cement EN 459-2:2001, Building lime Part 2: Test methods EN 13813, Screed material and floor screeds - Screed material - Properties and requirements EN 1389
29、2-1, Methods of test for screed materials - Part 1: Sampling, making and curing specimens for test 3 Test conditions and sampling 3.1 General requirements for testing 3.1.1 Water The water used for testing and chemical analyses shall be distilled or deionised. Unless otherwise specified, the water t
30、emperature shall be the same as the air temperature in the laboratory. 3.1.2 Apparatus The apparatus used for gauging and the moulds used for preparing the test specimens, shall be free from leaks and shall be manufactured from a water proof material which is non reactive to calcium sulfate (e.g. gl
31、ass, brass, stainless steel, hardened steel, hard rubber and plastics etc.). Since the characteristics of calcium sulfate are strongly influenced by the presence of particles of calcium sulfate dihydrate which can influence the setting time, all equipment used in the tests shall be kept in a perfect
32、 state of cleanliness. Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (E) 5 3.2 Sampling for binders (CAB, CAC) Sampling for binders shall be carried out in accordance with EN 196-7 and
33、 EN 459-2. 3.3 Sampling for factory made mixtures (CA) Sampling for factory made mixtures shall be carried out in accordance with EN 13892-1.The composition of samples shall always be representative of the average composition of the material, the possibility of segregation being taken into considera
34、tion. The test report shall state whether the samples taken are spot samples or composite samples (See 3.6 and 3.7 of EN 196-7:1989). Samples which are likely to change in air shall be placed in airtight containers, such as cans, immediately after they have been taken. Wherever possible tests shall
35、be carried out on specimens prepared immediately after obtaining the sample, if necessary on site. Specimens shall be prepared during working time but not later than 2 h after gauging. This period shall also be observed when fresh samples are supplied to a testing centre, and may be appropriately de
36、creased or increased for samples containing accelerators or retarders. If transportation of fresh samples cannot be avoided, they shall be supplied immediately for testing, accompanied by a certificate stating which tests are to be carried out, and protected from changes, such as loss of water, entr
37、y of water etc., as may occur during transportation. Specimens shall be prepared immediately on receipt of the sample, after the sample has been mixed again manually. Specimens shall be prepared within the working time after gauging. For this reason, they shall as a rule (e.g. when prepared in situ)
38、 be stored under vibration-free conditions and protected from climatic effects (e.g. frigobox etc.) for at least 24 h before they are conveyed in the moulds for testing. If special requirements in respect of the preparation and storage of the particular sample are specified for the tests envisaged t
39、hese shall be observed. 4 Test methods for binders (CAB ; CAC) 4.1 Content of calcium sulfate 4.1.1 Principle The calcium sulfate is decomposed by digestion with hydrochloric acid solution. Insoluble impurities are removed by filtration. The sulfate in the filtrate is determined gravimetrically as b
40、arium sulfate. 4.1.2 Apparatus a) Sieve 0,1 mm mesh. b) 600 ml and 800 ml beakers. c) Rapid filtration funnels. d) Muffle furnace. e) Ignition crucible, porosity 4. f) Filter paper capable of retaining particles greater than 2,5 m. g) Porous porcelain or silica crucible. Licensed Copy: London South
41、Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (E) 6 4.1.3 Reagents a) Hydrochloric acid solution : 2 N ; b) Ammonia solution : (50 % by volume) c) Barium chloride : (3 % by mass solution in water) d) Methyl orang
42、e or other suitable indicator. 4.1.4 Procedure Grind the dried sample until it passes completely through a sieve with a mesh of 0,1 mm. Weigh accurately about 0,5 g into a 600 ml beaker, add 25 ml of hot distilled water. Mix the sample and water with a glass rod until all the lumps are dispersed. Ad
43、d 25 ml of 2 N HCl. Bring to the boil and maintain this for 10 min. Add 150 ml of hot water and allow to boil for 15 min. Remove the beaker from the heat and filter through the filter paper into an 800 ml beaker. Wash out the beaker and filter paper using hot distilled or deionised water until the f
44、iltrate is free of chloride. Make up to approximately 350 ml using distilled water. Add a few drops of indicator and neutralise with ammonia solution. Add 20 ml 2 N HCl. Bring to the boil again and add 50 ml of hot barium chloride solution stirring vigorously during the addition. Bring to the boil a
45、nd allow to settle just below boiling for at least 30 min. Filter by one of the following methods : a) Filtration using filter crucibles. Ignite a clean ignition crucible, porosity 4, or a porous porcelain filter crucible at (800 25) C for 10 min. Cool in a desiccator to room temperature and weigh.
46、Decant the clear liquid through the crucible using a slight suction. Wash the precipitate 3 times by decantation with hot water, transfer to the crucible and wash 6 times with small quantities of hot water. The last wash should be chloride free. Dry the crucible and contents and ignite at (800 25) C
47、 for 10 min. b) Filtration using filter paper. Use filter paper as described. Decant the clear liquid through the filter paper. Wash the precipitate 3 times by decantation with hot water, transfer to the filter paper and wash with small quantities of hot water until the wash is chloride free. After
48、filtration and washing fold the paper around the precipitate and place it in a weighed porcelain or silica crucible, previously ignited at (800 25) C and cooled in a desiccator. Heat gently to char the paper and expel the volatile matter. Do not allow the paper to burst into flames. Raise the temper
49、ature slowly to burn off the carbon with free access of air. Finally ignite for 10 min at (800 25) C. Cool in a desiccator and weigh. Calculate the CaSO4 content as a percentage from the equation : CaSO4 = W2 x 58,33 / W1 (1) where W1 is the mass of sample, in grams ; W2 is the mass of precipitate, in grams. Licensed Copy: London South Bank University, London South Bank University, Fri Oct 05 02:52:13 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EN 13454-2:2003+A1:2007 (E) 7 4.2 De
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