ISO 22965-1-2007 Concrete - Part 1 Methods of specifying and guidance for the specifier《混凝土 第1部分 规定的方法和规范制定者的指南》.pdf

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1、 Reference number ISO 22965-1:2007(E) ISO 2007INTERNATIONAL STANDARD ISO 22965-1 First edition 2007-04-01 Concrete Part 1: Methods of specifying and guidance for the specifier Bton Partie 1: Mthodes de spcification et lignes directrices pour le spcificateur ISO 22965-1:2007(E) PDF disclaimer This PD

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4、DF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2007 All rights reserved

5、. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.

6、 ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2007 All rights reservedISO 22965-1:2007(E) ISO 2007 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope.

7、1 2 Normative references. 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 5 5 Specification of concrete . 6 6 Exchange of information 10 Annex A (informative) Guidance for the specifier of exposure classes, consistence classes and strength classes 12 Annex B (informative) Performance-

8、related design methods with respect to durability . 17 Annex C (normative) Identity testing for compressive strength. 19 Annex D (informative) Guidance on the national annex. 21 Bibliography . 22 ISO 22965-1:2007(E) iv ISO 2007 All rights reservedForeword ISO (the International Organization for Stan

9、dardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right

10、 to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International S

11、tandards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an

12、International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 22

13、965-1 was prepared by Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre-stressed concrete, Subcommittee SC 3, Concrete production and execution of concrete structures. ISO 22965 consists of the following parts, under the general title Concrete: Part 1: Methods of specifying and gu

14、idance for the specifier Part 2: Specification of constituent materials, production of concrete and compliance of concrete ISO 22965-1:2007(E) ISO 2007 All rights reserved v Introduction This International Standard is intended for nations that have no national concrete standard and it sets out a fra

15、mework of principles for nations revising their national standards. To be operable, this International Standard needs a national annex or a reference to the national complementary provisions. This International Standard can also be applied on specific projects where a project specification supplemen

16、ts the standards in lieu of a national annex applicable at the place of use. This International Standard is applied under various climatic and geographical conditions, various levels of protection and under different established regional traditions and experience. Consequently, this International St

17、andard includes classes for concrete with different properties to cover the most frequent and normal situations. For certain uses of concrete, additional or deviating rules can be necessary. The national provisions, preferably given in a national annex to this International Standard, or the project

18、specification can specify any additional or deviating requirements. During the development of this International Standard, consideration was given to detailing a performance- related approach to the specification of durability. It was concluded that such an approach is not yet sufficiently developed

19、 to be detailed in an International Standard. ISO/TC 71/SC 3 recognizes that some ISO member bodies have developed local tests and criteria for performance-based specifications. This International Standard does not exclude the continuation and development of such practices valid in the place of use

20、of the concrete as an alternative to the prescriptive approach. It is necessary that these requirements be specified in the national annex or national complementary provisions. The Model Code for Service Limit Design (MC-SLD), which was published by fib in 2006, is a promising basis for implementati

21、on as future International Standards from ISO/TC 71; see Annex B. This International Standard incorporates rules for the use of constituent materials that are covered by International Standards. For materials for which International Standards have not yet been published, the standards cited in the n

22、ational annex (often the regional or national standards) apply; see 5.1. In particular, documents in current use for by-products of industrial processes, recycled materials, etc. are based on local experience. Until international specifications for these materials are available, this International S

23、tandard does not provide rules for their use, but instead refers to the national annex. This International Standard defines the two parties involved in the ordering and the supply of concrete, which are hereinafter referred to as specifier and supplier. In practice, there can be several parties spec

24、ifying requirements at various stages of the design and construction process, e.g. the client, the designer, the quantity surveyor, the constructor and the concreting subconstructor. Each is expected to pass the specified requirements, together with any additional requirements, to the next party in

25、the chain until they reach the supplier. In the terms of this International Standard, this final compilation of requirements is known as the “concrete specification”. In some cases, the specifier and the supplier is the same party (e.g. a constructor doing design, production and execution). In the c

26、ase of ready-mixed concrete, the purchaser is the specifier. This part of ISO 22965 also gives rules for the exchange of information between the parties. Contractual matters are not addressed. This International Standard is intended for use with ISO 22965-2 and with the future ISO 22966, currently u

27、nder development, which will give the requirements associated with the level of quality specified and the methods to be employed for the execution of concrete structures. INTERNATIONAL STANDARD ISO 22965-1:2007(E) ISO 2007 All rights reserved 1 Concrete Part 1: Methods of specifying and guidance for

28、 the specifier 1 Scope This part of ISO 22965 applies to concrete for structures cast in situ, pre-cast structures and structural pre-cast products for buildings and civil engineering structures. The concrete can be mixed on site, ready-mixed concrete or produced in a plant for pre-cast concrete pro

29、ducts. This part of ISO 22965 applies to concrete compacted to retain no appreciable amount of entrapped air other than entrained air and to normal-weight, heavy-weight and light-weight concrete. Other International Standards for specific products, e.g. pre-cast products, or for processes within the

30、 field of the scope of this part of ISO 22965, can require or permit deviations from this part of ISO 22965. This part of ISO 22965 contains requirements for the specification of concrete and guidance for the exchange of information between the specifier and supplier. An informative annex gives gene

31、ral guidance on specification. More specific guidance on specification related to the local conditions can be given in a national annex. This part of ISO 22965 does not apply to concrete with a maximum aggregate size equal to or less than 4 mm or 5 mm (mortar), aerated concrete, foamed concrete, con

32、crete with an open structure (“no-fine aggregate” concrete), concrete with a density less than 800 kg/m 3 , refractory concrete. This part of ISO 22965 does not cover health and safety requirements for the protection of workers during production and delivery of concrete. 2 Normative references The f

33、ollowing 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. ISO 1920-1, Testing of concrete Part 1: Sampling of fr

34、esh concrete ISO 1920-3, Testing of concrete Part 3: Making and curing test specimens ISO 22965-1:2007(E) 2 ISO 2007 All rights reservedISO 1920-4, Testing of concrete Part 4: Strength of hardened concrete ISO 22965-2:2007, Concrete Part 2: Specification of constituent materials, production of concr

35、ete and compliance of concrete 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 addition finely divided or ground material used in concrete in order to improve certain properties or to achieve special properties NOTE This part of ISO 22965 dea

36、ls with two types of additions: nearly inert additions (type I); pozzolanic or latent hydraulic additions (type II). 3.2 admixture material added during the mixing process of concrete in small quantities relative to the mass of cement to modify the properties of fresh or hardened concrete 3.3 aggreg

37、ate granular mineral material suitable for use in concrete NOTE Aggregates can be natural, artificial or recycled from material previously used in construction, e.g. recycled concrete aggregate. 3.4 batch quantity of fresh concrete produced in one cycle of operations of a mixer or the quantity disch

38、arged during 1 min from a continuous mixer or quantity of concrete transported in a vehicle NOTE For testing to be performed at site, the concrete transported as one load in a vehicle can be considered as one batch. 3.5 cement hydraulic binder finely ground inorganic material that, when mixed with w

39、ater, forms a paste that sets and hardens by means of hydration reactions and processes and that, after hardening, retains its strength and stability even under water 3.6 characteristic strength value of strength below which 5 % of the population of all possible strength determinations of the volume

40、 of concrete under consideration are expected to fall 3.7 concrete material formed by mixing cement, coarse and fine aggregate and water, with or without the incorporation of admixtures and additions, which develops its properties by hydration of the cement NOTE International Standards for aggregate

41、 may define aggregates larger than 4 mm or 5 mm as coarse. In concrete for general-purpose use, the coarse aggregate should normally have a maximum aggregate size of at least 16 mm. ISO 22965-1:2007(E) ISO 2007 All rights reserved 3 3.8 concrete specification all documented technical requirements ne

42、cessary to produce and deliver the concrete 3.9 compliance test test performed to verify that the concrete complies with some aspect of the specification 3.10 delivery process of handing over the fresh concrete by the producer 3.11 designed concrete concrete for which the minimum characteristic stre

43、ngth, other required properties and additional characteristics are specified to the supplier who is responsible for providing a concrete complying with the specified minimum characteristic strength, any other specified properties and any specified additional characteristics 3.12 effective water cont

44、ent difference between the total water present in the fresh concrete and the water absorbed by the aggregates 3.13 entrained air microscopic air bubbles, typically between 10 m and 300 m in diameter and spherical or nearly so, intentionally incorporated in concrete during mixing, usually by use of a

45、 surface-active agent 3.14 entrapped air air voids in concrete that are not purposely entrained 3.15 environmental actions those chemical and physical actions to which the concrete is exposed and that result in effects on the concrete or reinforcement or embedded metal that are not considered as loa

46、ds in structural design 3.16 evaluation of compliance systematic examination of the extent to which a product fulfils specified requirements 3.17 fresh concrete fully mixed concrete that is still capable of being compacted by the intended method 3.18 general suitability suitable for use in some conc

47、retes 3.19 hardened concrete concrete that is in a solid state and which has developed a certain strength 3.20 heavy-weight aggregate aggregate having an oven-dry particle density W 3 000 kg/m 3ISO 22965-1:2007(E) 4 ISO 2007 All rights reserved3.21 heavy-weight concrete concrete having an oven-dry d

48、ensity greater than 2 600 kg/m 33.22 identity test test to determine whether the concrete represented by one or more batches comes from a complying population 3.23 light-weight aggregate aggregate of mineral origin having an oven-dry particle density u 2 000 kg/m 3or a loose oven-dry bulk density u

49、1 200 kg/m 33.24 light-weight concrete concrete having an oven-dry density of not less than 800 kg/m 3and not more than 2 000 kg/m 3NOTE It is produced using light-weight aggregate for all or part of the total aggregate. 3.25 maximum aggregate size largest aggregate size used in the concrete NOTE The requirements for aggregate size in standards often allow a small percentage to be retained on the upper sieve size. 3.26 normal-weight aggregate aggregate with an oven-dry particle density 2 000 kg/m 3and 3 000 kg/