CEN TR 15840-2009 Evaluation of conformity of fly ash for concrete - Guidelines for the application of EN 450-2《混凝土用粉煤灰的符合性评估 EN 450-2标准的应用指南》.pdf

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1、PD CEN/TR15840:2009ICS 91.100.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWPUBLISHED DOCUMENTEvaluation ofconformity of flyash for concrete Guidelines for theapplication of EN 450-2This Published Documentwas published underthe authority of theStandards Policy andStrategy C

2、ommittee on 30September 2009 BSI 2009ISBN 978 0 580 63108 5Amendments/corrigenda issued since publicationDate CommentsPD CEN/TR 15840:2009National forewordThis Published Document is the UK implementation of CEN/TR15840:2009.The UK participation in its preparation was entrusted to TechnicalCommittee

3、B/517, Concrete.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 Standard cannot confer

4、immunityfrom legal obligations.PD CEN/TR 15840:2009TECHNICAL REPORTRAPPORT TECHNIQUETECHNISCHER BERICHTCEN/TR 15840January 2009ICS 91.100.30English VersionEvaluation of conformity of fly ash for concrete - Guidelines forthe application of EN 450-2Evaluation de la conformit de cendres volantes pour l

5、ebton - Guide pour lapplication de lEN 450-2Bewertung der Konformitt von Flugasche fr Beton -Leitlinien fr die Anwendung von EN 450-2This Technical Report was approved by CEN on 18 November 2008. It has been drawn up by the Technical Committee CEN/TC 104.CEN members are the national standards bodies

6、 of 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, Switzerland and United Kingdom.EUROPEAN

7、 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 reservedworldwide for CEN national Members.Ref. No. CEN/TR 15840:2009: EPD CEN/TR 15840:2009

8、CEN/TR 15840:2009 (E) 2 Contents1Foreword 4Introduction .51 Scope 62 Normative references 63 Terms and definitions .63.1 Specific definitions 63.2 General definitions 84 Tasks for the producer 94.1 Factory production control .94.2 Internal quality control . 134.3 Autocontrol testing of samples . 165

9、 Tasks fro the certification body 195.1 General . 195.2 Surveillance, assessment and acceptance of the production control 195.3 Evaluation of the results of autocontrol testing of samples 215.4 Audit testing of samples taken at the production plant/depot and initial type testing . 245.5 Initial insp

10、ection of the production plant and the production control 275.6 Evaluation of test results during the initial period 296 Actions in the event of non-conformity 306.1 Actions to be taken by the producer 306.2 Actions to be taken by the certification body 307 Procedure for third party certification of

11、 conformity 318 Certificate of conformity and conformity mark . 348.1 Indication of conformity . 348.2 Certificate of conformity 368.3 Conformity mark . 369 Requirements for dispatching centres . 379.1 General requirements . 379.2 Tasks for the intermediary . 379.3 Tasks for the third party . 38Anne

12、x A (normative) Evaluation of the representativeness and the accuracy of the fineness test results 41A.1 General . 41A.2 Sets of results considered . 41A.3 Evaluation procedure . 41Annex B (informative) General definitions 44B.1 Definitions based on the Construction Products Directive . 44B.2 Defini

13、tions from or based on EN 45020 44B.3 Definition from EN ISO 9000 44B.4 Definitions from EN 197-1 and EN 196-7 45Bibliography . 461 The numbering and headings of clauses follow those in EN 450-2:2005. PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 3 Tables Table 1 Actions to be taken by the certification

14、 body in the event of non-conformity of the results of autocontrol and/or audit testing . 39Table 2 Confirmation and audit testing of samples of certified fly ash taken at dispatching centres: properties and minimum testing frequenciesa40Table A.1 Symbols . 42Figures Figure 1 Typical sequence of eva

15、luations of the autocontrol test results for fly ash (control period 12 months, based on the minimum frequency of two evaluations per year) 22Figure 2 Typical evaluations of autocontrol test results (see 5.3.4). 23PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 4 Foreword This document (CEN/TR 15840:2009)

16、 has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, the secretariat of which is held by DIN. 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 id

17、entifying any or all such patent rights. PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 5 Introduction The purpose of this Guidelines Document is to provide explanatory detail on points not fully elaborated in EN 450-2:2005 “Fly ash for concrete Part 2: Conformity evaluation“. It is intended for use by p

18、roducers and by certification bodies involved in the certification of fly ash following EN 450-1 and EN 450-2, in particular for the issuing of an EC Certificate of Conformity. This document does not deal with the necessary internal procedures that the certification bodies will have. It is an object

19、ive of this Guidelines Document that its use will assist in the establishment of equivalent procedures for certification of fly ash. It is expected that, following this document, traditional good procedures and practices that may be different can continue to be used, provided that they are not in co

20、ntradiction withEN 450-1:2005 and EN 450-2. Such existing good procedures and practices, applied in conjunction with these Guidelines, are not considered to be an impediment to the achievement of the uniform level of certification throughout Europe, and by different certification bodies that is expe

21、cted from the application of EN 450-2 together with these Guidelines. This Guidelines Document is based on existing situations for production, evaluation of conformity and certification of fly ashes. It may happen that certification bodies be confronted by a situation different to those included in

22、this document. In such a case, specific procedures should be elaborated on a case by case situation and be approved and fully recorded by the Certification Body. These specific procedures should always fulfil the requirements of EN 450-1:2005 and EN 450-2 and lead to the same level of confidence in

23、product conformity that would be achieved by application of this Guidelines Document. The clause numbering system of EN 450-2 is followed. The text of each of the clauses of the Standard is reproduced in full and is followed by guidance, which is provided only for those clauses where clarification o

24、r elaboration is needed. PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 6 1 Scope This document specifies the scheme for the evaluation of conformity of fly ash according to EN 450-1:2005. The document provides technical rules for the production control by the producer, including autocontrol testing of s

25、amples. It also provides rules for actions to be followed in the event of non-conformity, the procedure for the certification of conformity and requirements for dispatching centres. Guidance EN 450-2 deals with the evaluation of conformity of fly ash submitted for certification. It deals in particul

26、ar with cases where “further testing” of the product is undertaken, as is the case for attestation system 1 + under the Construction Products Directive. The product for which EN 450-2 applies is defined in EN 450-1:2005 as fly ash for the production of concrete which consists of a fine powder of mai

27、nly spherical, glassy particles, derived from burning of pulverised coal, with or without co-combustion materials, which has pozzolanic properties. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition

28、 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 196-7, Methods of testing cement Part 7: Methods of taking and preparing samples of cement EN 450-1:2005,

29、 Fly ash for concrete Part 1: Definition, specifications and conformity criteria EN 450-2:2005, Fly ash for concrete Part 2: Conformity evaluation EN 451-2, Method of testing fly ash Part 2: Determination of fineness by wet sieving 3 Terms and definitions For the purposes of this document, the follo

30、wing terms and definitions apply. 3.1 Specific definitions 3.1.1 certificate of conformity to EN 450-1:2005 document issued under the rules of a certain scheme for the evaluation of conformity indicating that adequate confidence is provided that fly ash is in conformity with EN 450-1:2005 Guidance T

31、he term “certificate of conformity” refers to certificates of conformity issued by a certification body under the rules of EN 450-2. This includes an EC Certificate of Conformity issued in relation to the CPD. 3.1.2 conformity mark protected mark applied on the basis of the certificate of conformity

32、 (see 3.1.1) PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 7 Guidance The term “protected mark” includes registered mark, regulated mark and CE marking. 3.1.3 certified fly ash fly ash for which a certificate of conformity has been issued 3.1.4 initial period immediate period after the first issuing of

33、the certificate of conformity for a fly ash 3.1.5 certification body impartial body, governmental or non-governmental, possessing the necessary competence and responsibility to carry out conformity certification according to given rules of procedure and management 3.1.6 production control permanent

34、internal control of fly ash production exercised by the producer consisting of internal quality control and autocontrol testing 3.1.7 production plant facility used by a producer for the production of fly ash: a) power plant with one (several) boiler(s), b) processing plant, for example for the clas

35、sification, selection, sieving, drying, blending, grinding and/or carbon reduction of fly ash(es). In the production plant, equipment has to be used which is suitable for production of fly ash including the necessary silo capacity for the storage and dispatch of the fly ash produced, and equipment t

36、o test, evaluate and control the fly ash production. This equipment and the production control applied allow the control of production with sufficient accuracy to ensure that the requirements of EN 450-1:2005 are met Guidance Two categories of production plant are recognised: traditional power stati

37、on facility where fly ash is produced as part of the production of electricity; processing plants that may or may not be on a power station facility, where ashes are altered in some manner. 3.1.8 new production plant production plant which is not already producing fly ash certified under this scheme

38、 3.1.9 existing production plant production plant which is already producing fly ash certified under this scheme PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 8 3.1.10 depot bulk fly ash handling facility (not located at the production plant) used for the dispatch of fly ash (whether in bulk or bagged)

39、after transfer or storage, where the producer has full responsibility for all aspects of the quality of the fly ash Guidance It is important to point out the difference between a depot and a dispatching centre. The difference consists essentially of the linkage to the production plant and the respon

40、sibility for the quality of the fly ash. In the case of a depot, the facility is strictly linked to the production plant and is included in the production plant Works quality manual. The producer has full responsibility for the quality of the fly ash released from the depot. In a dispatching centre,

41、 in contrast, the facility is not at all linked to the production plant and it is an intermediary (an entity taking certified fly ash, acting independently and operating between the producer and a subsequent customer) who has full responsibility for the quality of the fly ash dispatched. A dispatchi

42、ng centre, being independent from the production plant cannot be included in a Works quality manual, but it has to ensure, using appropriate rules, that the quality of an already certified fly ash does not undergo any change. Depots are included in the Works quality manual. An entity other than the

43、producer may own and operate the depot but it does this on behalf of and under the strict quality management responsibility of the producer. 3.1.11 dispatching centre bulk fly ash handling facility (not located at the production plant) used for the dispatch of fly ash after transfer or storage where

44、 an intermediary has full responsibility for all aspects of the quality of the fly ash Guidance See guidance under 3.1.10 and 9.1. 3.1.12 intermediary natural or legal person who takes from the producer fly ash certified according to EN 450-2 and bearing the conformity mark, who undertakes full resp

45、onsibility for maintaining in a dispatching centre all aspects of the quality of the fly ash and who supplies the fly ash onwards to a further natural or legal person 3.1.13 confirmation autocontrol testing continual testing carried out by an intermediary which consists of testing of samples taken b

46、y the intermediary at the point(s) of release from the dispatching centre 3.1.14 works quality manual document that provides information on the production control which is applied by a producer at a particular production plant to ensure conformity of the fly ash with the requirements of EN 450-1:200

47、5 3.1.15 producer the operator of the production plant or a person (natural or legal) authorised by the production plant and named in the certificate of conformity 3.2 General definitions See Annex B (informative). PD CEN/TR 15840:2009CEN/TR 15840:2009 (E) 9 4 Tasks for the producer 4.1 Factory prod

48、uction control 4.1.1 Concept Production control means the permanent internal control of fly ash production exercised by the producer. It consists of internal quality control (see 4.2) and autocontrol testing2of samples of fly ash taken at the point of release (see 4.3). NOTE The requirements of EN 4

49、50-2 as regards the production control take account of those clauses of EN ISO 9001 6 which are relevant to the production, process control and testing of fly ash. Guidance The purpose of production control is to ensure that the fly ash is manufactured in a controlled way to meet all of the requirements of EN 450-1:2005. In order that a certification body can verify such a system, it has t