1、BRITISH STANDARDBS EN 15435:2008Precast concrete products Normal weight and lightweight concrete shuttering blocks Product properties and performanceICS 91.100.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g
2、44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15435:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008ISBN 978 0 580 56218 1National forewordThis British Standard is the UK implementation of EN 154
3、35:2008.The UK participation in its preparation was entrusted to Technical Committee B/524, Precast concrete products.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contr
4、act. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15435April 2008ICS 91.100.30English VersionPrecast conc
5、rete products - Normal weight and lightweightconcrete shuttering blocks - Product properties and performanceProduits prfabriqus en bton - Blocs de coffrage enbton de granulats courants et lgers - Proprits etperformances des produitsBetonfertigteile - Schalungssteine aus Normal- undLeichtbeton - Prod
6、ukteigenschaften undLeistungsmerkmaleThis European Standard was approved by CEN on 18 March 2008.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-d
7、ate lists and bibliographical references concerning such nationalstandards 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 translationunder the
8、 responsibility of a CEN member into its own language and notified to the CEN Management Centre has 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,
9、 Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de
10、 Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15435:2008: EEN 15435:2008 (E) 2 Contents Page Foreword4 1 Scope 5 2 Normative references 5 3 Terms, definitions and symbols.6 3.1 Terms and definitio
11、ns .6 3.2 Symbols 7 4 Requirements.8 4.1 General8 4.2 Raw materials and concrete .9 4.3 Dangerous substances .9 4.4 Geometric properties 9 4.5 Density 10 4.6 Moisture movement.10 4.7 Reaction to fire.10 4.8 Water vapour permeability10 4.9 Mechanical strength 10 4.10 Acoustic properties .11 4.11 Ther
12、mal properties 11 4.12 Water absorption by capillarity 11 4.13 Durability 11 5 Test methods12 5.1 Geometric properties 12 5.2 Density 14 5.3 Mechanical strength 15 6 Classification15 7 Marking .16 8 Evaluation of conformity.16 8.1 General16 8.2 Initial type testing 16 8.3 Factory production control.
13、17 Annex A (normative) Determination of web tensile strength .18 A.1 Principle18 A.2 Apparatus .18 A.3 Procedure .19 A.4 Determining the tensile strength of webs .21 A.5 Test report 23 Annex B (normative) Determination of shell flexural strength.24 B.1 Principle24 B.2 Apparatus .24 B.3 Procedure .24
14、 B.4 Determining the flexural strength of the shells 24 B.5 Test report 28 Annex C (normative) Sampling for initial type testing 29 C.1 General29 C.2 Sampling procedure 29 C.3 Place and dates of inspection and acceptance testing .31 BS EN 15435:2008EN 15435:2008 (E) 3 Annex D (normative) Compliance
15、criteria for initial type testing and for independent batch acceptance testing 32 Annex E (informative) Example of inspection schemes .33 E.1 Equipment inspection.33 E.2 Materials inspection34 E.3 Production process inspection35 E.4 Product inspection36 E.5 Switching rules 37 Annex F (informative) F
16、illing pressure of concrete infill 38 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive .39 ZA.1 Scope and relevant characteristics.39 ZA.2 Procedure for attestation of conformity of concrete shuttering blocks40 ZA.3 CE marki
17、ng and labelling .42 Bibliography44 BS EN 15435:2008EN 15435:2008 (E) 4 Foreword This document (EN 15435:2008) has been prepared by Technical Committee CEN/TC 229 “Precast concret products”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national sta
18、ndard, either by publication of an identical text or by endorsement, at the latest by October 2008, and conflicting national standards shall be withdrawn at the latest by January 2010. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent right
19、s. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This 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 EU Construction Products Directiv
20、e (89/106/EC). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. It also takes into account the “Common rules for precast concrete products” in EN 13369. According to the CEN/CENELEC Internal Regulations, the national standards organizations
21、 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, Norway, Poland, Portugal, Romania, S
22、lovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15435:2008EN 15435:2008 (E) 5 1 Scope This European Standard specifies the properties, performance and test methods of factory made, non-load bearing hollow concrete shuttering blocks made from normal weight or lightweight a
23、ggregates or a combination of both. Shuttering blocks may include vertical or horizontal interlocking features and factory installed supplementary insulation. Shuttering blocks are intended to be used to form walls and partitions when filled with concrete or mortar. Concrete shuttering blocks rely o
24、n a concrete or mortar infill for their structural performance and are not intended to be used unfilled. This standard does not cover masonry units covered in EN 771-3. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated referen
25、ces, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 772-11, Methods of test for masonry units Part 11: Determination of water absorption of aggregate concrete, manufactured stone and natural stone masonry u
26、nits due to capillary action and the initial rate of water absorption of clay masonry units EN 772-14, Methods of test for masonry units - Part 14: Determination of moisture movement of aggregate concrete and manufactured stone masonry units EN 772-16, Methods of test for masonry units Part 16: Dete
27、rmination of dimensions EN 772-20, Methods of test for masonry units - Part 20: Determination of flatness of faces of aggregate concrete, manufactured stone and natural stone masonry units EN 1745, Masonry and masonry products Methods for determining design thermal values EN 12390-5:2000, Testing ha
28、rdened concrete Part 5: Flexural strength of test specimens EN 12664, Thermal performance of building materials and products - Determination of thermal resistance by means of guarded hot plate and heat flow meter methods - Dry and moist products of medium and low thermal resistance EN 13369, Common
29、rules for precast concrete products EN 13501-1, Fire classification of construction products and building elements - Part 1: Classification using data from reaction to fire tests EN ISO 12572, Hygrothermal performance of building materials and products Determination of water vapour transmission prop
30、erties (ISO 12572:2001) BS EN 15435:2008EN 15435:2008 (E) 6 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 shuttering block hollow block, sometimes incorporating lateral interlocking, intended as permanen
31、t formwork for concrete or mortar infill, for laying dry or with mortar Figure 1 Example of a shuttering block 3.1.2 shuttering block with supplementary thermal insulation shuttering block incorporating thermal insulation to enhance thermal resistance Figure 2 Examples of shuttering blocks with supp
32、lementary thermal insulation 3.1.3 design (nominal) dimension dimension targeted in the project documentation 3.1.4 actual dimension (of the product) dimension found by measurement (on the finished product) BS EN 15435:2008EN 15435:2008 (E) 7 3.1.5 specially shaped shuttering block shuttering block
33、having a shape, such as a corner block, which allows it to fulfil a particular function 3.1.6 interlocking features (horizontal and/or vertical) shaped matched projections and indentations on shuttering blocks (e.g. tongue and groove systems) 3.1.7 hollow core shaped void for incorporation of concre
34、te or mortar infill and any supplementary thermal insulation 3.1.8 shell solid material between the hollow core and the faces of a shuttering block 3.1.9 web solid material linking the shells of the shuttering block 3.1.10 web recess formed notch in a web 3.2 Symbols l length of the shuttering block
35、 in mm tbwidth of the shuttering block in mm h height of the shuttering block in mm ts1thickness of the outer shell in mm ts2thickness of the inner shell in mm tw1(w1, w2, etc.) thickness of web in mm tcwidth of the hollow core (concrete infill) in mm WRwidth of web recess tithickness of the insulat
36、ing material in mm hRTotal height of the web in mm (hR= hR1+ hR2) ARTotal area of the web recess in mm2lddiagonal of the face hwrecessed height of web (hW= h hR1 hR2) a1length of hollow core a2length of cantilevered shell BS EN 15435:2008EN 15435:2008 (E) 8 Figure 3 Geometric specification symbols 4
37、 Requirements 4.1 General The requirements and properties specified in this European Standard shall be defined in terms of the test methods and other procedures referred in this European Standard. NOTE The standard test methods are not always applicable to specially shaped shuttering blocks as defin
38、ed in 3.1.5. BS EN 15435:2008EN 15435:2008 (E) 9 4.2 Raw materials and concrete Materials for shuttering block concrete shall comply with EN 13369. Any supplementary thermal insulation material shall comply with an appropriate European standard. 4.3 Dangerous substances Shuttering blocks shall not r
39、elease any dangerous substances in excess of the maximum permitted levels specified or permitted in the national regulations valid in the place of use. 4.4 Geometric properties 4.4.1 Dimensions The dimensions of the shuttering blocks shall be declared in millimetres for length, width and height, in
40、that order (see Figure 3). The dimensions of voids and web recesses shall be declared in millimetres. They shall be given in terms of work size and be shown on diagrams. Tolerances on declared work sizes of individual regular shaped shuttering blocks shall conform to Table 1. Closer deviations may b
41、e declared by the manufacturer for one or more dimensions. The thickness of shell(s) and web(s) shall be declared. Table 1 Permissible deviations in millimetres Length Width Height Dimensions of voids and web recesses (l) (tb) (h) +5 +5 +3 +10 -5 -5 -5 -4 4.4.2 Web recess area When web recesses are
42、included the minimum web recess area shall be declared. The web recess area shall be determined in accordance with 5.1.4. 4.4.3 Flatness 4.4.3.1 Flatness of external faces of facing shuttering blocks When the surface of facing shuttering blocks is declared as plane, it shall not deviate from a plane
43、 by more than 0,1 ldmm or 2 mm whichever is the greater, where ldis the length of the diagonal of the face. The flatness of external faces of facing shuttering blocks shall be determined in accordance with 5.1.5. 4.4.3.2 Flatness of bed faces When the shuttering blocks are dry-stacked the flatness o
44、f bed faces shall be determined in accordance with 5.1.6.The deviation from flatness shall not exceed 3 mm. 4.4.4 Squareness When required, squareness between the side-faces and both bed faces for shuttering blocks to be dry-stacked shall not deviate by more than 5 mm when measured in accordance wit
45、h 5.1.3.2. or 3 mm when measured in accordance with 5.1.3.3. BS EN 15435:2008EN 15435:2008 (E) 10 4.4.5 Appearance of facing shuttering blocks When required, the appearance of facing shuttering blocks may have compliance established on the basis of comparison with any approved samples. Comparison sh
46、all be made from a distance of 3 m in normal daylight conditions. This compliance shall be established before the shuttering blocks are used. 4.5 Density The net dry density of the shuttering blocks shall be declared in kg/m3. The mean value of the test samples shall not differ from the declared val
47、ue by more than 10 %. The dry density shall be determined according to 5.2. For factory production control purposes, density may be verified by weighing individual shuttering blocks. 4.6 Moisture movement When required, the moisture movement of the shuttering blocks (shrinkage and expansion) shall b
48、e declared. Moisture movement shall be determined according to EN 772-14. 4.7 Reaction to fire For concrete shuttering blocks intended to be used in elements subject to fire requirements, the manufacturer shall declare the reaction to fire classification of the shuttering block. Shuttering blocks co
49、ntaining a mass or volume fraction of a maximum of 1,0 % (whichever is the most onerous) of homogeneously distributed organic materials, are classified as Class A1 without the need to test. Shuttering blocks containing a mass or volume fraction more than 1,0 % (whichever is the most onerous) of homogeneously distributed organic materials shall be classified in accordance with EN 13501-1 and the appropriate reaction to fire class declared. Information on reaction to fire class of supplementary insulating material shall be given on the basis of Europ
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