1、BRITISH STANDARDBS EN 15542:2008Ductile iron pipes, fittings and accessories External cement mortar coating for pipes Requirements and test methodsICS 23.040.01g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44
2、g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 15542:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2008 BSI 2008ISBN 978 0 580 57336 1National forewordThis British Standard is the UK implementation of EN 1554
3、2:2008.The UK participation in its preparation was entrusted to Technical Committee PSE/10, Iron pipes and fittings.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 contrac
4、t. 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 15542March 2008ICS 23.040.01English VersionDuctile iron p
5、ipes, fittings and accessories - External cementmortar coating for pipes - Requirements and test methodsTuyaux, raccords et accessoires en fonte ductile -Revtement extrieur en mortier de ciment pour tuyaux -Prescriptions et mthodes dessaiRohre, Formstcke und Zubehr aus duktilem Gusseisen -Zementmrte
6、lumhllung von Rohren - Anforderungen undPrfverfahrenThis European Standard was approved by CEN on 7 February 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 al
7、teration. Up-to-date 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 tra
8、nslationunder the 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,
9、 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 STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManageme
10、nt Centre: rue de 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 15542:2008: EEN 15542:2008 (E) 2 Contents Page Foreword4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .
11、7 4 Ordering information.8 5 Technical requirements 8 5.1 Zinc coating8 5.2 Primer film thickness 8 5.3 Fresh cement mortar composition.8 5.4 Fresh cement mortar layer thickness9 5.5 Pipe ends 9 5.6 Appearance of cured cement mortar coating .9 5.7 Thickness of cured cement mortar coating 9 5.8 Repai
12、rs10 5.9 Marking .10 6 Performance requirements .10 6.1 Cement mortar Constituents 10 6.1.1 Cement10 6.1.2 Sand 10 6.1.3 Fibres 10 6.1.4 Surface tissue.10 6.1.5 Organic components.11 6.2 Bond strength 11 6.3 Impact resistance.11 7 Test methods11 7.1 Routine tests 11 7.1.1 Zinc coating11 7.1.2 Primer
13、11 7.1.3 Fresh cement mortar composition.11 7.1.4 Thickness of the cement mortar layer .11 7.1.5 Pipe ends 11 7.1.6 Appearance and continuity of cured cement mortar coating .12 7.1.7 Thickness of the cured cement mortar coating12 7.1.8 Repairs12 7.1.9 Marking .12 7.2 Performance tests12 7.2.1 Consti
14、tuents.12 7.2.2 Bond strength 13 7.2.3 Impact strength13 Annex A (informative) Quality assurance .14 A.1 General14 A.2 Performance test15 A.3 Quality assessment system16 Annex B (informative) Application process17 B.1 Coating process.17 B.1.1 Temperature during work .17 BS EN 15542:2008EN 15542:2008
15、 (E) 3 B.1.2 Application of zinc coating.17 B.1.3 Application of primer 17 B.2 Application of cement mortar 17 B.2.1 Application with primer.17 B.2.2 Application without primer.17 Annex C (informative) Explanatory notes.18 Annex D (informative) Calculation of fresh cement mortar composition .19 D.1
16、General .19 D.2 Sampling 19 D.3 Determination of the content of sand and fibres .19 D.4 Determination of the fibre content.20 Bibliography21 BS EN 15542:2008EN 15542:2008 (E) 4 Foreword This document (EN 15542:2008) has been prepared by Technical Committee CEN/TC 203 “Cast iron pipes, fittings and t
17、heir joints”, the secretariat of which is held by AFNOR. 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 September 2008, and conflicting national standards shall be withdrawn at the latest by Sept
18、ember 2008. 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. According to the CEN/CENELEC Internal Regulations, the national standards
19、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, Norway, Poland, Portuga
20、l, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 15542:2008EN 15542:2008 (E) 5 Introduction This European Standard is in conformity with the general requirements already established by CEN/TC 164 in the field of water supply (e.g. potable water) and CEN/TC 165
21、 in the field of waste water. In respect of potential adverse effects on the quality of water intended for human consumption, caused by the product covered by this European Standard: a) this European Standard provides no information as to whether the product may be used without restriction in any of
22、 the member states of the EU or EFTA; b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national regulations concerning the use and/or the characteristics of this product remain in force. BS EN 15542:2008EN 15542:2008 (E) 6 1 Scope This European Standa
23、rd defines the requirements and test methods applicable to factory applied cement mortar coatings for the external corrosion protection of ductile iron pipes conforming to EN 545, EN 598 and EN 969 for use at operating temperatures up to 50 C, and for soil conditions according to Annex D.2 of EN 545
24、:2006. Special activities on site such as joint protection, tapping, clamping, etc. could affect the corrosion protection properties of the cement mortar coating. These operations should be covered in the laying instructions supplied by the manufacturers of pipes, clamps, house connection saddles, e
25、tc. and any relevant users procedures. Such instructions are not part of this European Standard. 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
26、edition of the referenced document (including any amendments) applies. EN 197-1, Cement - Part 1: Composition, specifications and conformity criteria for common cements EN 197-2, Cement - Part 2: Conformity evaluation EN 545:2006, Ductile iron pipes, fittings, accessories and their joints for water
27、pipelines - Requirements and test methods EN 598, Ductile iron pipes, fittings, accessories and their joints for sewerage applications - Requirements and test methods EN 969, Ductile iron pipes, fittings, accessories and their joints for gas pipelines - Requirements and test methods EN 13055-1, Ligh
28、tweight aggregates - Part 1: Lightweight aggregates for concrete, mortar and grout EN 14020-1, Reinforcements - Specification for textile glass rovings - Part 1: Designation EN 14020-2, Reinforcements - Specification for textile glass rovings - Part 2: Methods of test and general requirements EN ISO
29、 527-1, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-1:1993 including Corr 1:1994) EN ISO 527-2, Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics (ISO 527-2:1993 including Corr 1:1994) EN ISO 1183-1,
30、Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method, liquid pyknometer method and titration method (ISO 1183-1:2004) EN ISO 4624:2003, Paints and varnishes - Pull-off test for adhesion (ISO 4624:2002) ISO 695, Glass - Resistance to attack by a boiling a
31、queous solution of mixed alkali - Method of test and classification ISO 719, Glass - Hydrolytic resistance of glass grains at 98 C - Method of test and classification ISO 2591-1, Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate BS EN 15542:2008EN 15542:
32、2008 (E) 7 ISO 3310-1, Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 ductile iron cast iron used for pipes, fittings and accessories in which graphit
33、e is present substantially in spherodal form 3.2 cement mortar coating multi-layer external coating system for ductile iron pipes, principally consisting of the two following layers: zinc coating; cement mortar layer. Polymer additive, primer, pigments, surface tissue or top coatings may be used acc
34、ording to the method of application of the coating used by the different manufacturers 3.3 zinc coating coating intended to protect the ductile iron and applied to the pipe by means of a thermal spraying process 3.4 primer two-component resin which cures by exposure to moisture and serves as adhesiv
35、e to the cement mortar layer 3.5 cement mortar layer blast furnace slag cement mortar system reinforced with fibres. It may be polymer modified and/or pigmented, and may be covered with a layer of surface tissue 3.6 fibres inert plastic fibres, e.g. polypropylene fibres, or alkali resistant glass fi
36、bres, e.g. AR-glass fibres, or special E-glass fibres which are used to reinforce the cement mortar layer 3.7 pigments material added to the fresh cement mortar in order to identify the medium to be transported 3.8 polymer additive organic material added to the fresh cement mortar in order to improv
37、e the workability and to reduce the water/cement ratio and to improve the performance of the cement mortar layer 3.9 surface tissue polyolefin tissue in form of strip with a net-like structure, which may be applied to the cement mortar layer 3.10 top coating coating applied to the cement mortar laye
38、r in order to identify the medium to be transported BS EN 15542:2008EN 15542:2008 (E) 8 3.11 minimum coating thickness lower limit specified for the cement mortar coating thickness 3.12 impact strength impact energy which a coating can withstand without damage under defined test conditions 3.13 bond
39、 strength force per unit area, applied perpendicular to the surface, which is necessary to separate the coating from its substrate 3.14 performance test test which is done once and is repeated according to a schedule or after relevant change of raw material supplier or relevant change in process app
40、lication 3.15 routine test test carried out to control the manufacturing process with a frequency defined by the manufacturer 4 Ordering information The following information shall be supplied to the manufacturer by the purchaser: Ductile iron pipes according to EN 545, EN 598 or EN 969, but coated
41、with cement mortar coating by reference to this European Standard. EXAMPLE 5 000 m of ductile iron pipe DN 300 according to EN 545; external cement mortar coating according to EN 15542. 5 Technical requirements 5.1 Zinc coating The zinc coating shall comply with the requirements specified in EN 545,
42、 EN 598 or EN 969 whereby the mean mass of zinc per unit area of not less than 200 g/ m2shall apply and the purity of the zinc used shall be at least 99,99 %. The zinc coating shall be dry and free from dirt, oil and grease. 5.2 Primer film thickness When measured by one or both methods indicated in
43、 7.1.2, the primer, if applicable, shall be applied to a mean thickness between 80 m and 150 m. 5.3 Fresh cement mortar composition The requirements specified for fresh cement mortar refer to the condition of the mortar upon application. For testing purposes, samples shall be taken immediately befor
44、e the material is to be applied. Fresh cement mortar is characterized by the sand/cement mixing ratio, v, the water/cement ratio, w, and the fibre content, f (fibres/fresh mortar) expressed as percentage. When tested in accordance with the method in 7.1.3, the requirements in respect to the composit
45、ion as listed in Table 1 shall be met. BS EN 15542:2008EN 15542:2008 (E) 9 Table 1 Requirements of the fresh mortar composition Sand/cement Water/cement Fibre content Polymer modification v w f without 1 0,35 0,8 f 3,5 with 2 0,35 2 5.4 Fresh cement mortar layer thickness The nominal thickness of th
46、e fresh cement mortar layer shall be 5 mm with individual minimum values of 3 mm when measured according to 7.1.4. 5.5 Pipe ends The spigot shall be not covered by the cement mortar coating over a free length “a” (see Figure 1). Figure 1 Pipe end The uncoated spigot length “a” depends on the type of
47、 joint. It is the responsibility of the manufacturer to define the appropriate uncoated length for each type of joint. The pipe ends surfaces not covered by the cement mortar coating (spigot, front end of socket and internal section of socket) shall be coated with filled bituminous paint or other su
48、itable coating(s). Where such coatings are in contact with water intended for human consumption, these shall comply with the relevant requirements stated in the introduction of this European Standard. Pipe ends shall be inspected according to 7.1.5. NOTE The pipe parts not covered by cement mortar w
49、ill be protected after laying using appropriate measures, e.g. rubber sleeves, which are covered by the manufacturers laying instructions and are not within the scope of this standard. 5.6 Appearance of cured cement mortar coating The cement mortar coating shall adhere to the pipe surface and shall be free of hollow areas. The cured coating shall not exhibit any chipping nor any loose sand particles. Protruding grains of sand and fibres, as well as hairline cracks, are permitted. Appearance shall be inspected according to 7.1.6. 5.7 Thickness
