1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58 Internal lining with cement mortar The European Standard EN 10298:2005 has the status of a British
2、 StandardICS 23.040.10; 23.040.40; 25.220.99Steel tubes and fittings for on shore and offshore pipelines BRITISH STANDARDBS EN 10298:2005BS EN 10298:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 16 December 2005 BSI 16 December 2005ISBN
3、 0 580 47422 4A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “I
4、nternational Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a
5、British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 25 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.A
6、mendments issued since publicationAmd. No. Date Comments aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developm
7、ents and promulgate them in the UK.National forewordThis British Standard is the official English language version of EN 10298:2005. The UK participation in its preparation was entrusted by Technical Committee ISE/16, Protective coatings and linings of metal pipes and fittings, to Subcommittee ISE/1
8、6/-/10, Internal coatings and linings for steel pipes and fittings, which has the responsibility to:EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 10298October 2005ICS 23.040.10; 23.040.40; 25.220.99English VersionSteel tubes and fittings for on shore and offshore pipelines -Internal lining with
9、cement mortarTubes en acier et raccords pour canalisations enterres etimmerges - Revtement interne au moyen de mortier decimentStahlrohre und Formstcke fr erd- und wasserverlegteRohrleitungen Zementmrtel-AuskleidungThis European Standard was approved by CEN on 26 August 2005.CEN members are bound to
10、 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 application to the Central
11、Secretariat 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 Central Secretariat has the same status as the of
12、ficialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden
13、, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. N
14、o. EN 10298:2005: EEN 10298:2005 (E) 2 Contents Foreword 3 1 Scope .4 2 Normative references .4 3 Terms and definitions.4 4 Classification of linings5 5 Information to be supplied by the purchaser5 6 Standard designation .6 7 Composition and application of the lining6 8 Requirements for the applied
15、lining 8 9 Repairs.10 10 Marking 11 11 Handling, transport and storage11 Annex A (informative) Cut back types 12 Annex B (informative) Guidance for the choice of the type of cement.14 Annex C (normative) Wet mortar analysis 20 Annex D (normative) Saponification resistance of organic concrete additiv
16、es.22 Annex E (informative) Inspection 23 Bibliography.25 EN 10298:2005 (E) 3 Foreword This European Standard (EN 10298:2005) has been prepared by Technical Committee ECISS/TC 29 “Steel tubes and fittings for steel tubes”, the secretariat of which is held by UNI. This European Standard shall be give
17、n the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the latest by April 2006. According to the CEN/CENELEC Internal Regulations, the national standards organizations o
18、f the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Sp
19、ain, Sweden, Switzerland and United Kingdom. EN 10298:2005 (E) 4 1 Scope This European Standard specifies requirements for cement mortar linings for protecting the internal surface of steel tubes and pipeline components. It also specifies requirements for their application. It is applicable to the l
20、inings of tubes that have been welded longitudinally or spirally, seamless tubes and non-alloy steel components used for fluid transportation. This European Standard does not cover in situ applied or rehabilitation linings. This type of lining is used in particular in the transport and distribution,
21、 under pressure or by gravity, of water intended for human consumption and industrial use, and also in fire extinguishing and waste water systems. The temperature of the water transported should not exceed 50 C. Higher working temperature can be used by agreement of the parties. The constituent mate
22、rials of cement mortar lining, when used under the conditions for which they are designed, in permanent or temporary contact with water intended for human consumption, shall not change the quality of that water to such an extent that it fails to comply with the requirements of European regulations.
23、For this purpose, reference shall be made to the relevant national standards transposing EN standards when available, dealing with the influence of materials on water quality. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated
24、references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement Part 1: Determination of strength. EN 197-1, Cement Part 1: Composition, specifications and conformity criteria fo
25、r common cements. EN 1744-1, Tests for chemical properties of aggregates Part 1: Chemical analysis. ISO 565, Test sieves Metal wire cloth, perforated metal plate and electroformed sheet Nominal sizes of openings. ISO 2591-1, Test sieving Part 1: Methods using test sieves of woven wire cloth and perf
26、orated metal plate. 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 European Standard, the following terms and definitions apply. 3.1 product manufacturer manufacturer of lining material 3.2 coater o
27、rganisation responsible for lining of tubes and components 3.3 purchaser buyer of the lined products 3.4 drinking water water intended for human consumption EN 10298:2005 (E) 5 4 Classification of linings The cement mortar linings shall be classified according to the cement type used, the additives
28、used and the method of application. The various possibilities are listed in Table 1. Table 1 Classification of linings Cement type Blast furnace cement Portland cement Blast furnace cement Portland cement sulphate resistant Calcium aluminate cement Symbol CEM III Aa, CEM I aCEM IIIB a, CEM I-HS bCEM
29、 CAC bAdditives No additive Liquefying additives Resin dispersion Mineral additives Symbol N L R M Spinning method Spraying method Manual method Application sign I II III aAbbreviation according to EN 197-1. bFor cement CEM I HS (Sulphate Resistance) and CEM CAC (High Aluminium Cement) reference sha
30、ll be made to European standards when available or to the relevant national standards.5 Information to be supplied by the purchaser 5.1 Mandatory information to be supplied by the purchaser The purchaser shall state in his enquiry and order the following minimum information: reference to this Europe
31、an standard EN 10298; type of water to be transported in the pipeline; type of cut-back (see annex A); transportation under pressure or by gravity for waste water application. 5.2 Options to be indicated by the purchaser The purchaser may add the following optional information: type of cement; type
32、of additives; method of application; service temperature; application of a pore sealer. EN 10298:2005 (E) 6 6 Standard designation Designation of cement mortar lining in compliance with this European Standard shall contain the following: reference to this standard; type of cement; type of additives,
33、 if applicable; method of application. EXAMPLE 1 5000 metres of tube - EN 10224 of 406, 4 x4, 0 - internal lining EN 10298 CEM I R I EXAMPLE 2 8000 metres of tube - EN 10224 of 406, 4-4, 0 - internal lining EN 10298 CEM III M L II 7 Composition and application of the lining 7.1 Surface preparation T
34、he internal surface to be lined shall be free from objects that can adversely affect the lining or impair its application. Loose rust, loose mill scale, dirt, debris, oil, grease, paint and other material that may have originated from an external coating process, scattered weld beads as well as blas
35、ting residues and/or chemical cleaning process residues shall be removed. However the presence of a light adhesive rust layer does not impair the performance of a cement mortal lining and may be left. 7.2 Composition of the lining The mortar shall be a homogeneous mixture of cement, sand and water (
36、certain additives, as given, in Table 1, may be added) of a suitable consistency for producing a regular lining on the internal surface of the tubes and fittings. The mortar shall be free from foreign bodies, in particular lumps of hardened mortar. In the cases of drinking water transportation lines
37、, the organic impurities content shall not exceed the amount equivalent to 0,1 g KMnO4/kg sand when determined as an extract in deionized water and to 0,3 g KMnO4/kg sand when determined as an extract in 0,1 mol NaOH. 7.3 Constituent materials 7.3.1 Cement The quality of cement shall comply with EN
38、197-1 or with European standards when available or the relelvant national standards (see Table 1). NOTE Information in Annex B can be used as a guide in the selection of the cement type. 7.3.2 Sand 7.3.2.1 The sand shall be mainly composed of particles of siliceous material insoluble in alkali and s
39、hall not contain organic matter or visible traces of clay. It shall have a controlled particle distribution ranging from fine particles to coarser particles; it shall be clean and composed of hard, stable and resistant inert granular particles. 7.3.2.2 It shall be stored in a clean place in order to
40、 avoid any contamination by foreign bodies, and in particular by organic matter. EN 10298:2005 (E) 7 7.3.2.3 Sampling is carried out according to the requirements of ISO 2591-1. 7.3.2.4 The size-distribution curve of the sand shall be drawn using sieves complying with ISO 565. It shall meet the foll
41、owing requirements. a) The fraction of fine particles passing through a sieve with 0,125 mm mesh aperture shall not exceed 10 % in mass. This is important in order to limit the error when determining S/C ratio of the mortar (see 8.2 and Annex C). b) The fraction with particles diameters up to and in
42、cluding one third of the minimum thickness of the lining shall not be less than 50 % in mass. c) The size of the coarsest particle shall neither exceed half the minimum lining thickness nor 3 mm except otherwise agreed upon by the parties. 7.3.2.5 The cleanness of the sand is evaluated according to
43、the criteria of the contents of chlorides, organic impurities and clay matter. a) The maximum chloride content shall be 0,02 %. The chloride content is determined according to EN 1744-1. b) The amount of clay matter and other fine particles in the sand is determined by the separation method.This amo
44、unt shall not exceed 2 % by mass. 7.3.2.6 Sands with a soluble and releasable alkali content of over 0,02 % shall not be used with CEM CAC. 7.3.3 Water For drinking water systems, only water intended for human consumption shall be used. For other applications, water of comparable quality, having a c
45、onductivity of less than 2 000 S/cm and a KMnO4consumption of less than 10 mg/l, can be used. For the determination of these parameters the European standards shall be used when available and, if not, use relevant national standards. 7.3.4 Mortar additives If the use of additives has been agreed and
46、 if they are not harmful to the quality of the water (in case of water intended for human consumption) or the performance of the lining they may be used for making up the mortar. For drinking water the additives shall comply with the national requirements in the country of use (see Clause 1). Pozzol
47、anic (hydraulic) fillers are allowed to be used up to a level of 10 % by mass of the cement and non-pozzolanic (non hydraulic) fillers up to 3 %. Fillers with a soluble and releasable alkali content of over 0,02 % shall not be used with CEM CAC. All organic additives (liquifiers or resins dispersion
48、) shall have a resistance to saponification greater than 45 ml when tested according to Annex D. 7.4 Method of application 7.4.1 The cement mortar is applied to the inside of tubes and fittings in such a way that the lining has maximum compaction and a surface condition that aids the flow of water.
49、Frozen material shall not be used and the mortar shall be applied at a temperature in excess of 5 C; so as to permit its correct curing. After application, the lining shall be kept damp, and the temperature of the substrate shall not be allowed to fall below 5 C. To prevent the lining from drying too rapidly, the tube ends shall be capped or otherwise specified unless the lining is allowed to cure under moist/warm conditions or in a draught-fre
