1、BS EN15254-2:2009ICS 13.220.50NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDExtended applicationof results from fireresistance tests Non-loadbearing wallsPart 2: Masonry and Gypsum BlocksThis British Standardwas published under theauthority of the StandardsPol
2、icy and StrategyCommittee on 31 August2009 BSI 2009ISBN 978 0 580 64551 8Amendments/corrigenda issued since publicationDate CommentsBS EN 15254-2:2009National forewordThis British Standard is the UK implementation of EN 15254-2:2009.The UK participation in its preparation was entrusted to TechnicalC
3、ommittee FSH/22, Fire resistance tests.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British
4、Standard cannot confer immunityfrom legal obligations.BS EN 15254-2:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15254-2July 2009ICS 13.220.50English VersionExtended application of results from fire resistance tests - Non-loadbearing walls - Part 2: Masonry and Gypsum BlocksApplication tend
5、ue des rsultats dessais de rsistance aufeu - Murs non porteurs - Partie 2: Maonnerie et carreauxde pltreErweiterter Anwendungsbereich der Ergebnisse ausFeuerwiderstandsprfungen - Nichttragende Wnde - Teil2: Mauersteine und Gips-WandbauplattenThis European Standard was approved by CEN on 16 May 2009.
6、CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on app
7、lication 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre h
8、as the same status as theofficial 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, Luxembourg, Malta, Netherlands, Norway, Poland, Port
9、ugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means rese
10、rvedworldwide for CEN national Members.Ref. No. EN 15254-2:2009: EBS EN 15254-2:2009EN 15254-2:2009 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Definitions 54 General principles54.1 General 54.2 Classifications 64.3 Additional information 65 Rules for extended application 75.1 U
11、nits according to EN 771-1, EN 771-2, EN 771-3 and EN 771-4 .75.1.1 Rules for units 75.1.2 Rules for masonry mortars and joints .85.1.3 Influence of plaster, rendering or external covering95.1.4 Geometrical parameters 95.1.5 Connection systems 95.2 Gypsum blocks according to EN 12859 95.2.1 Rules fo
12、r blocks .95.2.2 Rules for adhesives 105.2.3 Influence of plaster, rendering or external covering. 105.2.4 Geometrical parameters . 105.2.5 Connection systems . 106 Report of the extended application analysis . 11Bibliography . 12BS EN 15254-2:2009EN 15254-2:2009 (E) 3 Foreword This document (EN 152
13、54-2:2009) has been prepared by Technical Committee CEN/TC 127 “Fire safety in buildings”, the secretariat of which is held by BSI. 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 December 2009, a
14、nd conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. T
15、his document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of 89/106/EEC. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bo
16、und 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, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden,
17、Switzerland and the United Kingdom. BS EN 15254-2:2009EN 15254-2:2009 (E) 4 1 Scope This document provides guidance, and where appropriate defines procedures, for variations of products and element construction parameters related to the design of internal and external non-loadbearing walls made of c
18、lay units, calcium silicate units, aggregate concrete units, autoclaved aerated concrete units and gypsum blocks with different types of mortar that have been tested in accordance with EN 1364-1. Manufactured stone masonry units according to EN 771-5 are not covered. 2 Normative references The follo
19、wing 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 771-1, Specification for masonry units Part 1: Clay mas
20、onry units EN 771-2, Specification for masonry units Part 2: Calcium silicate masonry units EN 771-3, Specification for masonry units Part 3: Aggregate concrete masonry units (Dense and light-weight aggregates) EN 771-4, Specification for masonry units Part 4: Autoclaved aerated concrete masonry uni
21、ts EN 772-16, Methods of test for masonry units Part 16: Determination of dimensions EN 998-1, Specification for mortar for masonry Part 1: Rendering and plastering mortar EN 998-2, Specification for mortar for masonry Part 2: Masonry mortar EN 1363-1, Fire resistance tests Part 1: General requireme
22、nts EN 1363-2, Fire resistance tests Part 2: Alternative and additional procedures EN 1364-1, Fire resistance tests for non-loadbearing elements Part 1: Walls EN 1996-1-1, Eurocode 6 Design of masonry structures Part 1-1: General rules for reinforced and unreinforced masonry structures EN 1996-1-2:2
23、005, Eurocode 6 Design of masonry structures Part 1-2: General rules Structural fire design EN 1996-3, Eurocode 6 Design of masonry structures Part 3: Simplified calculation methods for unreinforced masonry structures EN 12859, Gypsum blocks Definitions, requirements and test methods EN 12860, Gypsu
24、m based adhesive for gypsum blocks Definitions, requirements and test methods EN 13501-2, Fire classification of construction products and building elements Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 15318, Design and application of gypsum blocks
25、BS EN 15254-2:2009EN 15254-2:2009 (E) 5 3 Definitions For the purpose of this standard, the definitions given in EN 1996-1-2:2005 and the following, apply. 3.1 unfilled perpend joints vertical plain joints or joints with tongue and groove, not filled with mortar or adhesive 3.2 historic test data te
26、st data generated by fire resistance tests that have been undertaken by an accredited and/or Notified Test Laboratory or by a laboratory officially recognised by national fire authorities in accordance with European and/or former and current national standards based on the temperature-time curve ide
27、ntical to the one specified in EN 1363-1 (and defined in ISO 834) NOTE 1 Previously existing test data is acceptable even though the test may not have been carried out using the plate thermometer. NOTE 2 This data may only be used as described in this European Standard. NOTE 3 Previously existing te
28、st data is acceptable provided that there has been no change to the product since this data was generated. 3.3 reference test fire resistance test in accordance with EN 1364-1, and where applicable EN 1363-2, on which the extended application is based and the results of which are used as the main so
29、urce of data for the extended application 3.4 test result outcome of a testing process and its associated procedures detailed within a specific test standard (which may include some processing of the results from the testing of a number of specimens) NOTE A test result is expressed in terms of one o
30、r more fire performance parameter(s). 4 General principles 4.1 General (1) The fire resistance behaviour of masonry mainly depends on: masonry unit material - clay, calcium silicate, autoclaved aerated concrete, dense/lightweight aggregate concrete or gypsum; type of unit - solid or hollow (type of
31、holes, percentage and direction of holes), shell and web thickness; dimensions of units, especially the height; gross density of units; strength of units; type of mortar - general purpose, thin layer or lightweight mortar; type of perpend joint filled or unfilled perpend joint, especially for unplas
32、tered walls; use of finishes; BS EN 15254-2:2009EN 15254-2:2009 (E) 6 geometrical slenderness of the wall, as defined in EN 1996-1-1; length of the wall between vertical stiffeners. (2) For the determination of values by consideration of test results, the interpretation of any existing fire test res
33、ult has to be based on the requirements for the relevant test method from EN 1364-1. For the evaluation of historic test data, differences between the test methods, in particular, fixed ends, free ends or one fixed end and one partly free end with respect to both directions (horizontal and vertical)
34、 have to be considered. Any historical test data shall be obtained by a comparable or a more onerous test method than in EN 1364-1 on a wall which is of the same or of worse resistance to fire performance. (3) Extrapolations are only possible within the same type of material e.g. tests on clay unit
35、masonry with units according to EN 771-1 may only be used for extrapolations for clay unit masonry. (4) To establish the extended application, the rules given in Clause 5 shall be followed for each of the given parameters. (5) Whenever a parameter change goes beyond the limits defined in this docume
36、nt, a new reference test is needed. 4.2 Classifications In some cases there are different extended application rules given for the classifications EI, E and E-W respectively and for the classification EI-M as defined in EN 13501-2. 4.3 Additional information For the classification according to these
37、 extended application rules additional information on material properties and additional measurements during the test procedure according to EN 1363-1, EN 1364-1 and EN 1363-2 or historic standard national fire test methods are necessary: measurement of the deflection of the test specimen at least i
38、n mid height, to allow for an extrapolation for height, see 5.5 4; gross dry density, compressive strength and moisture content of the units (i.e. difference between density of the units at the start of the fire test and the gross dry density of the units, related to the gross dry density of the uni
39、ts, in percent by mass); percentage of voids, web and shell thickness and combined thickness according to EN 772-16 for perforated units; gross dry density and compressive strength of the mortar; thickness of unfilled perpend joints in unplastered or unrendered walls; thickness and type of plaster o
40、r render in rendered walls. NOTE The measurement of the temperature within the test specimen at least in mid height across the wall thickness is advised to allow for a future calculation of fire resistances according to EN 1996-1-2. Thermocouples should be placed at least in depths of 10, 30 and 50
41、mm from the exposed side and then every 50 mm. BS EN 15254-2:2009EN 15254-2:2009 (E) 7 5 Rules for extended application 5.1 Units according to EN 771-1, EN 771-2, EN 771-3 and EN 771-4 5.1.1 Rules for units (1) Extrapolations are only possible within the same type of material e.g. tests on clay unit
42、 masonry with units according to EN 771-1 can only be used for extrapolations for clay unit masonry. Test results for lightweight aggregate concrete masonry cannot be applied for dense concrete unit masonry. (2) The test results are valid for the tested type of unit. If solid units, i.e. group 1 uni
43、ts according to EN 1996-1-1 are tested, the results are only valid for group 1 units with the same or a smaller percentage of voids. (3) For vertically perforated units (group 1, 2 and group 3 according to EN 1996-1-1), the test results can be applied for units with the same or a smaller percentage
44、of voids. If the difference between the tested percentage of voids and the upper limit of the group in EN 1996-1-1 is less than 5 % of the overall surface of the unit, test results are valid for all percentages of voids within that group. The tested percentage of voids can be rounded up to the next
45、multiple of 5 %. (4) For vertically perforated units, the test results can be applied for units with the same or a higher thickness of webs and shells and for the same or higher values of the combined thickness according to EN 772-16. The value of the combined thickness can be rounded down to the ne
46、xt multiple of 10 mm/m. (5) Test results for vertically perforated units meeting all the requirements of 5.1.1 can be applied for solid units. (6) For the classification EI, E and E-W the test results are valid for the tested size of the unit and units larger in height, length and width. (7) For uni
47、ts with a length between 200 and 1 000 mm, test results for a unit length from that range are valid for the whole range of unit lengths between 200 and 1 000 mm. (8) For the classification EI-M, test results are valid for the tested length and width and units larger in length and width. It is not po
48、ssible to extrapolate from tests on masonry walls with unit heights equal or smaller than 250 mm to units with greater heights. (9) For tested wall thicknesses up to 140 mm, the test results are valid for masonry with units with the same or a higher declared value of the gross density of the units w
49、ithin the following ranges: unit density between 300 and 999 kg/m: tested density and up to 800 kg/m higher density or 1 600 kg/m, the lower value applying; unit density between 1 000 and 2 200 kg/m: tested density and up to 600 kg/m higher density. Test results for lightweight aggregate concrete masonry cannot be applied for dense concrete unit masonry. (10) For wall thicknesses greater than 140 mm, the test results are valid for masonry unit
