1、 Reference number ISO 22965-2:2007(E) ISO 2007INTERNATIONAL STANDARD ISO 22965-2 First edition 2007-04-01 Concrete Part 2: Specification of constituent materials, production of concrete and compliance of concrete Bton Partie 2: Spcification des matriaux constituants, de la production du bton et de l
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5、ariat at the address given below. ISO 2007 All rights reserved. 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 addr
6、ess below or ISOs member body in the country of the requester. 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 22965-2:2007(E) ISO 2007 All rights r
7、eserved iii Contents Page Foreword iv Introduction v 1 Scope. 1 2 Normative references. 1 3 Terms and definitions. 2 4 Symbols and abbreviated terms . 3 5 Requirements for constituent materials. 4 5.1 General. 4 5.2 Cements. 4 5.3 Additions . 4 5.4 Aggregates 5 5.5 Mixing water 5 5.6 Admixtures 6 6
8、Requirements for concrete 6 6.1 Requirements for composition of concrete . 6 6.2 Requirements for fresh concrete 7 6.3 Requirements for hardened concrete. 8 7 Production control of concrete . 11 7.1 General. 11 7.2 Production-control systems 11 7.3 Testing. 13 8 Delivery of fresh concrete 13 8.1 Del
9、ivery ticket for ready-mixed concrete . 13 8.2 Delivery information for site-mixed concrete 14 8.3 Transport of concrete. 14 9 Compliance control and compliance criteria. 15 9.1 General. 15 9.2 Sampling and testing plan . 15 9.3 Compliance of an individual batch or load 16 9.4 Compliance over an ass
10、essment period 16 10 Evaluation of compliance 17 10.1 General. 17 10.2 Assessment, surveillance and certification of production control . 17 Annex A (informative) Guidance on a “benchmark” production-control system 18 Annex B (informative) Concrete families . 28 Annex C (normative) Provisions for as
11、sessment, surveillance and certification of production control 29 Annex D (informative) Additional provisions for high-strength concrete 32 Annex E (normative) Compliance criteria for an individual batch for consistence and properties other than consistence. 34 Annex F (informative) Guidance for the
12、 use of the k-value concept. 37 Annex G (informative) Guidance on the national annex 39 Bibliography . 41 ISO 22965-2:2007(E) iv ISO 2007 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). T
13、he 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 to be represented on that committee. International organizations, governmental and non-go
14、vernmental, 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 Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
15、 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 International Standard requires approval by at least 75 % of the member bodies casting a v
16、ote. 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 22965-2 was prepared by Technical Committee ISO/TC 71, Concrete, reinforced concrete and pre
17、-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 guidance for the specifier Part 2: Specification of constituent materials, production of con
18、crete and compliance of concrete ISO 22965-2:2007(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 framework of principles for nations revising their national standards. To be operable, this I
19、nternational 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 supplements the standards in lieu of a national annex applicable at the place of use. This Internat
20、ional Standard is applied under various climatic and geographical conditions, various levels of protection and under different established regional traditions and experience. Consequently, this International Standard includes classes for concrete with different properties to cover the most frequent
21、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 specification can specify any additional or deviating requirements. During the development
22、 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 to be detailed in an International Standard. ISO/TC 71/SC 3 recognizes that some ISO memb
23、er 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 of the concrete as an alternative to the prescriptive approach. It is necessary that these
24、 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 implementation as future International Standards from ISO/TC 71; see ISO 22965-1:2007, Annex B. This I
25、nternational 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 national annex (often the regional or national standards) apply; see 5.1.
26、 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 Standard does not provide rules for their use, but instead refers to the
27、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 specifying requirements at various stages of the design and construction pro
28、cess, 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 the chain until they reach the supplier. In the terms of this Internatio
29、nal 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 case of ready-mixed concrete, the purchaser is the specifier. This part o
30、f 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 22965-1 and with the future ISO 22966, currently under development, which will give the requirements associated with the l
31、evel of quality specified and the methods to be employed for the execution of concrete structures. INTERNATIONAL STANDARD ISO 22965-2:2007(E) ISO 2007 All rights reserved 1 Concrete Part 2: Specification of constituent materials, production of concrete and compliance of concrete 1 Scope This part of
32、 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 products. This part of ISO 22965 appli
33、es 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 field of the scope of this standar
34、d can require or permit deviations from this part of ISO 22965. This part of ISO 22965 specifies the properties of constituent materials, the production of concrete and the compliance system of concrete. This part of ISO 22965 does not apply to concrete with a maximum aggregate size equal to or less
35、 than 4 mm or 5 mm (mortar), aerated concrete, foamed concrete, concrete 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 durin
36、g production and delivery of concrete. 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 edition of the referenced document (including any amendmen
37、ts) applies. ISO 680, Cement Test methods Chemical analysis ISO 1770, Solid-stem general purpose thermometers ISO 22965-2:2007(E) 2 ISO 2007 All rights reservedISO 1920-1, Testing of concrete Part 1: Sampling of fresh concrete ISO 1920-2, Testing of concrete Part 2: Properties of fresh concrete ISO
38、1920-3, Testing of concrete Part 3: Making and curing test specimens ISO 1920-4, Testing of concrete Part 4: Strength of hardened concrete ISO 1920-5, Testing concrete Part 5: Properties of hardened concrete other than strength ISO 9297, Water quality Determination of chloride Silver nitrate titrati
39、on with chromate indicator (Mohrs method) ISO 22965-1:2007, Concrete Part 1: Methods of specifying and guidance for the specifier ASTM C 173, Standard Test Method for Air Content of Freshly Mixed Concrete by the Volumetric Method 3 Terms and definitions For the purposes of this part of ISO 22965, th
40、e terms and definitions given in ISO 22965-1 and the following apply. 3.1 agitating equipment equipment generally mounted on a self-propelled chassis and capable of maintaining fresh concrete in a homogeneous state during transport 3.2 all-in aggregate aggregate comprising a mixture of coarse and fi
41、ne aggregates 3.3 concrete family group of concrete compositions for which a reliable relationship between relevant properties is established and documented 3.4 cubic metre of concrete quantity of fresh concrete which, when compacted, occupies a volume of one cubic metre 3.5 high-strength concrete c
42、oncrete with a compressive strength class higher than B50 in the cases of normal-weight or heavy-weight concrete and LB50 in the case of light-weight concrete NOTE Other limits may be set in the national annex. 3.6 initial test test or tests before the production starts to check how a new concrete o
43、r concrete family shall be composed in order to meet all the specified requirements in the fresh and hardened states 3.7 non-agitating equipment equipment used for transporting concrete without agitation in the sense of 3.1, e.g. dump truck or transport hopper ISO 22965-2:2007(E) ISO 2007 All rights
44、 reserved 3 3.8 production day for strength testing day in which 20 m 3or more of concrete has been produced or, on days when less than 20 m 3of concrete has been produced, the day on which a cumulative 20 m 3of these concretes has been produced NOTE The sequence is restarted on a new day for each o
45、ccasion when a production day is counted. Limits other than 20 m 3may be set in the national annex 3.9 production week period of seven consecutive days comprising at least five production days or the period taken to complete five production days, whichever is the longer period 3.10 truck mixer concr
46、ete mixer mounted on a self-propelled chassis capable of mixing and delivering a homogeneous concrete 3.11 project specification project-specific document describing the requirements applicable for the particular project, giving all information and requirements necessary for the execution of the wor
47、ks, including documents, drawings, etc. NOTE The concrete specification drawn up by the specifier (see ISO 22965-1) should include all relevant requirements for the concrete as given in the project specification. 4 Symbols and abbreviated terms For the purposes of this document, the symbols and abbr
48、eviations given in ISO 22965-1 and the following apply. f ck,cylcharacteristic compressive strength of concrete determined by testing cylinders, expressed in newtons per square millimetre f c,cylcompressive strength of concrete determined by testing cylinders, expressed in newtons per square millime
49、tre f ck,cubecharacteristic compressive strength of concrete determined by testing cubes, expressed in newtons per square millimetre f c,cubecompressive strength of concrete determined by testing cubes, expressed in newtons per square millimetre f cmmean compressive strength of concrete, expressed in newtons per square millimetre f tsmmean tensile splitting strength of concrete, expressed in newtons per square millimetre f tskcharacteristic tensile splitting strength of concrete, expressed in newtons per sq
