1、BS EN 1858:2008ICS 91.060.40; 91.100.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDChimneys Components Concrete flue blocks+A1:2011National forewordThis British Standard is the UK implementation of EN 1858:2008+A1:2011. It supersedes BS EN 1858:2008 which is
2、 withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by !“.The UK participation in its preparation was entrust
3、ed to Technical Committee B/506/4, Chimneys and their components having inner linings of concrete.National annex NA (informative), clauses NA.1 to NA.5, give recommendations for design and construction of Type B, concrete flue block systems for gas appliances in the UK. Clause NA.6 gives examples of
4、 abbreviated designations used in the UK for common types of concrete flue blocks.NOTE Following the revision of Approved Document J to the Building Regulations in October 2010, bonding blocks for gas fire installation - Radiant/convector, ILFE or DFE require the designation T300, N2, O, D, 1.A list
5、 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 contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal
6、obligations.BS EN 1858:2008+A1:2011This British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 January2010 BSI 2011Amendments/corrigenda issued since publicationDate Comments 30 September 2011 Implementation of CEN amendment A1:2011ISBN 978 0 580 71444 3E
7、UROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1858:2008+A1 June 2011 ICS 91.060.40; 91.100.30 Supersedes EN 1858:2008English Version Chimneys - Components - Concrete flue blocks Conduits de fume - Composants - Conduits de fume simple et multiparois en bton Abgasanlagen - Bauteile - Betonformbl
8、cke This European Standard was approved by CEN on 1 November 2008 and includes Amendment 1 approved by CEN on 14 May 2011. 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 with
9、out any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other
10、language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC 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, De
11、nmark, Estonia, Finland, France, Germany, Greece, Hungary, 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 NORMALI
12、SATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1858:2008+A1:2011: E2 Contents Page Foreword 41 Scope 52 Normative references 53 Terms
13、and definitions 54 Materials .74.1 General 74.2 Reaction to fire .75 Reinforcement for handling 86 Surface treatment 87 Form, dimensions and tolerances .87.1 Form 87.2 Type B flue blocks .87.3 Tolerances 97.4 Straightness 107.5 Squareness of ends 108 Performance 108.1 Heat stress resistance 108.2 He
14、at shock resistance 108.3 Thermal resistance . 118.4 Gas tightness 118.5 Abrasion resistance . 128.6 Compressive strength 128.7 Corrosion resistance 128.8 Condensate resistance 138.9 Bulk density . 138.10 Flexural strength under wind loading 138.11 Flow resistance . 138.12 Freeze-thaw resistance 148
15、.13 Resistance to fire external to external 148.14 Dangerous substances 149 Designation . 149.1 General . 149.2 Temperature class 159.3 Pressure class . 159.4 Resistance to fire class 169.5 Resistance to condensate class . 169.6 Corrosion resistance class 1610 Marking 1711 Product information 1712 E
16、valuation of conformity 1712.1 General . 1712.2 Initial type testing . 1812.3 Further type tests 1812.4 Factory production control 18Annex A (normative) Test methods 19BS EN 1858:2008+A1:2011EN 1858:2008+A1:2011 (E)3 A.1 Squareness of ends test . 19A.2 Straightness test . 21A.3 Heat stress resistanc
17、e and heat shock test 22A.4 Thermal resistance 27A.5 Gas tightness test . 29A.6 Abrasion resistance test . 31A.7 Compressive strength test . 32A.8 Corrosion and condensate resistance test . 33A.9 Flexural strength under wind load . 36A.10 Bulk density . 37A.11 Ultimate compressive strength 38Annex B
18、 (informative) Examples of concrete flue block shapes . 39B.1 Straight flue blocks . 39B.2 Flue block fittings - Tee/access/connection unit . 40B.3 Examples of Type B flue block shapes . 41Annex C (normative) Thermal resistance calculation method . 43C.1 Thermal resistance of the individual element
19、43C.2 Thermal resistance of the chimney and of enclosures . 43Annex D (normative) Requirements of sampling plan according to ISO 2859-1:1999 at an Acceptable Quality Level (AQL) of 10 % and inspection level S2 44D.1 Acceptability determination . 44D.2 Normal inspection . 44D.3 Reduced Inspection 46D
20、.4 Reduced to normal inspection . 47D.5 Tightened inspection 47D.6 Tightened to normal inspection . 47D.7 Discontinuation of inspection 47Annex E (informative) Recommended test sequence 48Annex ZA (informative) Clauses of this European standard addressing the provisions of the EU Construction Produc
21、ts Directive . 49ZA.1 Relationship between EU Directives and this European Standard 49ZA.2 Procedure of attestation of conformity of concrete flue blocks . 51ZA.3 CE Marking and labelling 52Bibliography 55BS EN 1858:2008+A1:2011EN 1858:2008+A1:2011 (E)4 Foreword This document (EN 1858:2008+A1:2011)
22、has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by !ASI“. 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 2011, and conflicting national s
23、tandards shall be withdrawn at the latest by March 2013. 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. For the relationship with the
24、 EU Directives, see informative Annex ZA, which is an integral part of this standard. In this European Standard, the Annexes A, C and D are normative (not forming part of the product specification) and Annexes E and ZA are informative. This document includes Amendment 1 approved by CEN on 14 May 201
25、1. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This document supersedes !EN 1858:2008“. This Standard is one of a series of co-ordinated standards dealing with specification, design, testing and installation of chimneys, both single and multi
26、wall. The co-ordinated package of standards is further divided by material of construction and this European Standard is one of a series of specifications and execution documents dealing with design and installation of concrete chimney products and systems. The standards in this series for concrete
27、chimney products and systems are: EN 1857, Chimneys Components Concrete flue liners; EN 1858, Chimneys Components Concrete flue blocks; EN 12446, Chimneys Components Concrete outer wall elements. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
28、 countries are bound to implement this European Standard: 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,
29、 Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1858:2008+A1:2011EN 1858:2008+A1:2011 (E)5 1 Scope This European Standard specifies the materials, dimensional and performance requirements for precast concrete flue blocks as defined in Clause 3 for use in !deleted text “ chimneys.
30、 The flue blocks may be of single wall or multi wall construction. The standard does not apply to flue blocks with back ventilation. This standard does not cover products designated wet (W) in conjunction with corrosion class 3. The standard also specifies a type of flue block to dimensionally co-or
31、dinate with masonry unit coursing height, referred to as a type B (Bonding block). This European Standard also applies to storey-height and flue blocks reinforced for handling. NOTE Any reference to the term flue blocks implies both flue blocks and their fittings, except where otherwise indicated. 2
32、 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 206-1: 2000, Concrete Pa
33、rt 1: Specification, performance, production and conformity EN 1443, Chimneys General requirements EN 10088-2, Stainless steel Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 13216-1, Chimneys Test methods for system chimneys Part
34、 1: General test methods EN 13384-1, Chimneys Thermal and fluid dynamic calculation methods Part 1: Chimneys serving one appliance EN 14297: 2004, Chimneys Freeze-thaw resistance test method for chimney products EN ISO 7500-1:2004, Metallic materials Verification of static uniaxial testing machines
35、Part 1: Tension/compression testing machines !(ISO 7500-1:2004)“ ISO 2859-1:1999, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection 3 Terms and definitions For the purposes of this European Standard, the term
36、s and definitions given in EN 1443 and the following apply. 3.1 flue block fitting element fitted to the flue block such as an access opening or offset BS EN 1858:2008+A1:2011EN 1858:2008+A1:2011 (E)6 3.2 hollow wall flue block flue block having vertical cavities NOTE Cavities may pass through both
37、ends of the block. 3.3 manufacturers declared internal transverse dimension internal dimension of the flue block measured perpendicular to the longitudinal axis 3.4 manufacturers declared height internal height of the flue block NOTE Examples of measurement are shown in Figure 1. H Ha) with rebate b
38、) with plain end Key H internal height Figure 1 Manufacturers declared height 3.5 manufacturers declared structural height maximum constructional height of the flue blocks as declared by the manufacturer 3.6 manufacturers declared overall wall thickness dimensions at its thinnest point, between the
39、inside face of the flue and the outside face of the flue block, not measured at any joint feature, e.g. spigot/socket end 3.7 multi wall flue block flue block consisting of a flue liner and at least one additional wall 3.8 reinforced flue block flue block having reinforcement to assist handling (not
40、 for structural stability) 3.9 solid wall flue block flue block without cavities in the thickness of its walls BS EN 1858:2008+A1:2011EN 1858:2008+A1:2011 (E)7 3.10 straight flue block flue block designed to be used in a vertical section of a chimney, without having any special characteristics and h
41、aving the ends perpendicular to the axis of the flue 3.11 storey-height flue block factory made flue block having an overall height relating to the floor to floor height of a building 3.12 transfer block flue block designed to facilitate connection to another chimney product 3.13 concrete material f
42、ormed by mixing cement, aggregate and water and with or without the incorporation of admixtures or additions, which develops its properties by hydration of the cement EN 206-1:2000 3.14 precast concrete concrete that is cast in a place other than its final location of use 3.15 type B flue block type
43、 B (Bonding) block bonding block dimensionally co-ordinated with masonry unit coursing height, and having a designation T250, N, D1, O xx (see Clause 9). 4 Materials 4.1 General The wall or walls of flue blocks shall be precast concrete. For multiwall flue blocks the liner and outer wall may be sepa
44、rated by an air space or insulation. Materials used in the manufacture of flue blocks shall be identified for factory production control purposes. When insulation forms part of a flue block, it shall be of bonded material as specified by the manufacturer. If the insulation is supplied as a separate
45、item, it shall be installed in accordance with the flue block manufacturers installation instructions. The manufacturer shall declare the bulk density of the flue block and when tested to A.10 the density shall be within 10 % of the declared value (see 8.9). 4.2 Reaction to fire In accordance with C
46、ommission Decision 96/603/EC, as amended, flue blocks to this standard are classified as reaction to fire class A1 without test provided, they contain not more than a mass or volume fraction of 1 % (whichever is the more onerous) of homogeneously distributed organic materials. BS EN 1858:2008+A1:201
47、1EN 1858:2008+A1:2011 (E)8 5 Reinforcement for handling 5.1 Where a flue block is reinforced for handling, the reinforcement shall have a maximum diameter of 8 mm and a minimum concrete cover of 15 mm on all sides for temperature classes up to and including T250 and a minimum concrete cover of 20 mm
48、 on all sides for all other temperature classes. 5.2 In flue blocks having a bulk density of less than 2 000 kg/m3, when measured in accordance with Clause A.10, any reinforcement shall be protected against corrosion by one of the following means: a) use of stainless steel; b) by completely covering any mild steel reinforcement with a coating (e.g. typically Portland cement CEM I or CEM II mixed with water to form a slurry, or epoxy resin). 6 Surface treatment Any surface treatment of the flue block, e.g. render, shall be applied, as describe
