CEN TR 16563-2013 Principles of the equivalent durability procedure《等效耐久性规程序原则》.pdf

1、BSI Standards PublicationPD CEN/TR 16563:2013Principles of the equivalentdurability procedurePD CEN/TR 16563:2013 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of CEN/TR16563:2013.The UK participation in its preparation was entrusted to TechnicalCommittee B/517,

2、 Concrete.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BS

3、I StandardsLimited 2013ISBN 978 0 580 81434 1ICS 91.100.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments issued since publicationDa

4、te Text affectedPD CEN/TR 16563:2013TECHNICAL REPORT RAPPORT TECHNIQUE TECHNISCHER BERICHT CEN/TR 16563 August 2013 ICS 91.100.30 English Version Principles of the equivalent durability procedure Principes de la procdure de durabilit quivalente Verfahrensgrundstze zum Nachweis gleichwertiger Dauerha

5、ftigkeit This Technical Report was approved by CEN on 22 June 2013. It has been drawn up by the Technical Committee CEN/TC 104. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedon

6、ia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPI

7、SCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TR 16563:2013: EPD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 2 Contents Page Foreword 3 Introduction .

8、4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Principle 7 5 Selection of test methods .8 6 Determination of the reference value 9 7 Determination of equivalent durability-related test performance 11 8 Production control 13 9 Evaluation and declaration of equivalent durability-rel

9、ated test performance 14 10 Interface with users 14 Annex A (informative) Finland Testing of freeze-thaw resistance of a candidate concrete . 16 Annex B (informative) Germany 19 Annex C (informative) Italy 28 Annex D (informative) The Netherlands . 29 Annex E (informative) Norway 31 Annex F (normati

10、ve) The system used in Portugal and defined in their national annex to EN 206-1 32 Annex G (informative) Spain . 34 Annex H (informative) United Kingdom 36 Bibliography . 37 PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 3 Foreword This document (CEN/TR 16563:2013) has been prepared by Technical Committe

11、e 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 identifying any or all such patent rights.

12、 PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 4 Introduction (1) The Equivalent Durability Procedure (EDP) is a scheme that builds on the traditional method of ensuring durable concrete by specifying established limiting values in terms of maximum w/c ratio, minimum cement content etc. Essentially, a r

13、eference value is determined and a candidate concrete can be confirmed as being of equivalent performance where testing and other appropriate assessments are made to demonstrate equivalent performance with this reference value or reference concrete. The reference value is determined based on concret

14、es that satisfy fully the limiting value specification valid in the place of use and are representative of concretes that are successfully used in the local environment as providing a satisfactory service-life. To be considered a viable alternative, the proposed candidate concrete need to have a tes

15、t performance that equals, or is better than, the reference value when tested by the same method and at the same age as used to establish the reference performance. Such a comparison leads to equivalent performance in the test at the age of testing. As the rate of improvement in resistance is not co

16、nstant between concretes, the reference value will be appropriate for the constituents used in the candidate concrete. (2) No relatively short-term laboratory test will give a precise quantitative indication of real performance of in-situ concrete. One reason for this is that concrete will continue

17、to gain strength and resistance to the permeation of aggressive species in most natural environments, e.g. concrete will increase its resistance to the permeation of chloride ions with time, albeit at an ever decreasing rate. Such changes in performance over time, collectively called ageing effects,

18、 need to be taken into account when determining if the candidate concrete will provides an equivalent durability over the service-life. NOTE With respect to durability, the changes can be positive or negative. For example, reaction with seawater may result in a surface layer that increasingly inhibi

19、ts the penetration of chloride ions and hence improve durability. On the other hand, carbonation of concrete may release chlorides ions that were previously bound into the hydrate structure and, as these are then free to migrate towards any reinforcement, the durability may be reduced. (3) Some CEN

20、members have established national EDP type procedures which provide results that are likely to be reasonably indicative of in-situ performance or procedures whereby equivalent durability may be safely assumed for defined sets of materials. See Annex A to Annex H for some examples. (4) This Technical

21、 Report provides guidance to National Standards Bodies who want to establish an EDP in their national provisions to EN 206. PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 5 1 Scope This Technical Report sets out the principles of the equivalent durability procedure. It provides guidance on the selection

22、of the reference value, production control, evaluation of conformity and the exchange of information between the parties. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references,

23、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 for common ceme

24、nts EN 206-1, Concrete Part 1: Specification, performance, production and conformity EN 450-1, Fly ash for concrete Part 1: Definition, specifications and conformity criteria EN 480-11, Admixtures for concrete, mortar and grout Test methods Part 11: Determination of air void characteristics in harde

25、ned concrete EN 933-9, Tests for the geometrical properties of aggregates Part 9: Assessment of fines Methylene blue test EN 1992-1-1, Eurocode 2 Design of concrete structures Part 1-1: General rules, and rules for buildings EN 12350-1, Testing fresh concrete Part 1: Sampling EN 12390-2, Testing har

26、dened concrete Part 2: Making and curing specimens for strength tests EN 12390-3, Testing hardened concrete Part 3: Compressive strength of test specimens EN 12390-8, Testing hardened concrete Part 8: Depth of penetration of water under pressure CEN/TS 12390-9, Testing hardened concrete Part 9: Free

27、ze-thaw resistance Scaling CEN/TS 12390-10, Testing hardened concrete Part 10: Determination of the relative carbonation resistance of concrete CEN/TS 12390-11, Testing hardened concrete Part 11: Determination of the chloride resistance of concrete, unidirectional diffusion EN 12620, Aggregates for

28、concrete EN 13263-1, Silica fume for concrete Part 1: Definitions, requirements and conformity criteria EN 13295, Products and systems for the protection and repair of concrete structures Test methods Determination of resistance to carbonation EN 13369, Common rules for precast concrete products EN

29、13396, Products and systems for the protection and repair of concrete structures Test methods Measurement of chloride ion ingress EN 13670, Execution of concrete structures PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 6 EN 14216, Cement Composition, specifications and conformity criteria for very low h

30、eat special cements EN 15167-1, Ground granulated blast furnace slag for use in concrete, mortar and grout Part 1: Definitions, specifications and conformity criteria CEN/TR 15177, Testing the freeze-thaw resistance of concrete Internal structural damage ISO 5725-6, Accuracy (trueness and precision)

31、 of measurement methods and results Part 6: Use in practice of accuracy values ISO 16204, Durability Service life design of concrete structures BS 7979, Specification for limestone fines for use with Portland cement BS 8500-1, Concrete Complementary British Standard to BS EN 206-1 Part 1: Method of

32、specifying and guidance for the specifier BS 8500-2, Concrete Complementary British Standard to BS EN 206-1 Part 2: Specification for constituent materials and concrete DIN 1045-2, Concrete, reinforced and prestressed concrete structures Part 2: Concrete Specification, properties, production and con

33、formity Application rules for DIN EN 206-1 LNEC E 391, Concrete. Determination of carbonation resistance (In Portuguese) LNEC E 392, Concrete. Determination of the permeability to oxygen (In Portuguese) LNEC E 393, Concrete. Determination of the absorption of water through capillarity (In Portuguese

34、) LNEC E 463, Concrete. Determination of diffusion coefficient of chlorides from non-steady state migration test (In Portuguese) NEN 8005, NEN, Nederlandse invulling van NEN-EN 206-1: Beton Deel 1: Specificatie, eigenschappen, vervaardiging en conformiteit (Dutch supplement to NEN-EN 206-1) NT BUILD

35、 492, Concrete, mortar and cement-based repair materials: chloride migration coefficient from non-steady-state migration experiments 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 ageing effects changes in a concrete resistance to aggressive

36、 species as the result of the progression of the hydration together with the time evolution of cement phase microstructure, its interaction with the penetration species and, in certain cases, of concrete surface changes due to its direct interaction with the external environment Note 1 to entry: Exa

37、mple for interaction with the penetration species is: chloride binding. Note 2 to entry: Example for direct interaction with external environment is: a skin effect when concrete is exposed to seawater. 3.2 candidate concrete concrete comprising a closely defined set of constituents under investigati

38、on to determine the mix proportions that are likely to provide a durability performance equal to or greater than a reference value or reference concrete for the selected exposure class PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 7 3.3 equivalent durability related test performance procedure based on t

39、esting, by which a candidate concrete is shown to have equal or better performance than a reference value - when checked for the performance criteria linked to a selected exposure class Note 1 to entry: The process includes the definition of the performance value, testing the candidate concrete with

40、 a performance test at a specified age, and comparing it with the appropriate reference value of performance or the performance of the reference concrete at the same age. 3.4 reference concrete concrete where all the constituents and mix proportions are prescribed, conforming to the EN 206 provision

41、s valid in the place of use and representative of the national/local experience in the defined exposure class. 3.5 reference value value that the candidate concrete has to achieve or be better than and which is determined from either: a) a previously established value where this has been established

42、 from any combination of testing or service-life modelling; b) tests on the reference concrete; c) a value selected from the range of values resulting from testing concretes that conform to the provisions valid in the place of use and is representative of the national/local experience in the defined

43、 exposure class 4 Principle (1) The equivalent durability procedure (EDP) is a scheme for establishing conformity to EN 206 of concrete compositions that deviate from the limiting value criteria valid in the place of use. Durability testing to meet defined criteria is undertaken and this leads to a

44、limiting value specification that is valid only for the constituents used in the candidate concrete. This procedure only applies to concrete compositions that comprise constituents (natural, manufactured or recycled) covered by European technical specifications referred to in EN 206 or provisions va

45、lid in the place of use. (2) The procedure is applicable to any exposure class, but in practice it is limited to exposure classes where there are agreed standardized test methods (see 5.2). The application of the EDP is not appropriate for the X0 exposure class, as there are no environmental conditi

46、ons that are aggressive to concrete or reinforcement. (3) The EDP is to determine the equivalence of a candidate concrete used with the same minimum cover in the same exposure classes and intended working life as those appropriate for the reference value. (4) The EDP includes at least three parts: P

47、art 1: The setting of a reference value or the prescription of a reference concrete from which a reference value can be determined; Part 2: Initial testing and assessment of the candidate concrete to establish specific limiting values; Part 3: Continuous production control and conformity assessment

48、to the determined limiting values. (5) Part 1 requires for each exposure class, a reference value or a reference concrete to be selected. (6) The Part 2 always has Stage 1 and in some cases, also a Stage 2. PD CEN/TR 16563:2013CEN/TR 16563:2013 (E) 8 Stage 1 (7) Candidate concretes are tested and co

49、mpared with the reference value/concrete based on the same test methods at the same ages. Measurement uncertainty has to be taken into account. Equivalent durability at the age of testing is achieved when the candidate concrete has a measured value equal to or less than, i.e. better performance than, the reference value or the measured value of the appropriate reference concrete after taking account of measurement uncertainty. NOTE With the carbonation test, chloride diffusion test and the freeze-th