SIST ISO 22966:2011

INTERNATIONAL ISO
STANDARD 22966
First edition
2009-11-15
Execution of concrete structures
Exécution des structures en béton

Reference number
©
ISO 2009
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ii © ISO 2009 – All rights reserved

Contents Page
Foreword .v
Introduction.vi
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Execution management .4
4.1 Assumptions.4
4.2 Documentation .5
4.3 Quality management .6
4.4 Action in the event of a non-conformity .8
5 Falsework and formwork .8
5.1 Basic requirements .8
5.2 Materials .9
5.3 Design and installation of falsework .9
5.4 Design and installation of formwork .9
5.5 Special formwork.10
5.6 Inserts in formwork and embedded components .10
5.7 Removal of formwork and falsework.10
6 Reinforcement .11
6.1 General .11
6.2 Materials .11
6.3 Bending, cutting, transport and storage of the reinforcement.12
6.4 Welding.13
6.5 Joints .13
6.6 Assembly and placing of the reinforcement.13
7 Prestressing.13
7.1 General .13
7.2 Materials for prestressing.14
7.3 Transport and storage .15
7.4 Installation of tendons .15
7.5 Tensioning .16
7.6 Protective measures (grouting, greasing) .17
8 Concreting.18
8.1 Specification of concrete.18
8.2 Pre-concreting operations.18
8.3 Delivery, reception and site transport of fresh concrete .19
8.4 Placing and compaction .19
8.5 Curing and protection.20
8.6 Post-concreting operations.22
8.7 Concreting of composite structures .22
8.8 Surface finish.22
9 Execution with precast concrete elements.22
9.1 General .22
9.2 Factory produced precast elements.22
9.3 Site-manufactured precast elements .22
9.4 Handling and storage.23
9.5 Placing and adjustment .23
9.6 Jointing and completion works.24
10 Geometrical tolerances .24
10.1 General.24
10.2 Reference system .25
10.3 Base supports (foundations).25
10.4 Columns and walls .26
10.5 Beams and slabs.27
10.6 Sections .28
10.7 Surfaces and edge straightness .30
10.8 Tolerances for holes and inserts .30
Annex A (informative) Guidance on documentation .31
Annex B (informative) Guidance on quality management .36
Annex C (informative) Guidance on falsework and formwork.38
Annex D (informative) Guidance on reinforcement .40
Annex E (informative) Guidance on prestressing.42
Annex F (informative) Guidance on concreting .45
Annex G (informative) Guidance on geometrical tolerances.51
Annex H (informative) Guidance on national annex .58
Bibliography .59

iv © ISO 2009 – All rights reserved

Foreword
ISO (the International Organization for Standardization) 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 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 Standards 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
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 22966 was prepared by Technical Committee ISO/TC 71, Concrete, reinforced concrete and prestressed
concrete, Subcommittee SC 3, Concrete production and execution of concrete structures.
Introduction
This International Standard applies to the execution of concrete structures to achieve the intended levels of
[3]
reliability and serviceability that are given in ISO 2394 and in standards for the design of concrete structures.
This International Standard has three functions:
⎯ to transfer the requirements set during design from the designer to the constructor, i.e. to be a link
between design and execution;
⎯ to give a set of standardized technical requirements for the execution when ordering a concrete structure;
⎯ to serve as a check list for the designer to ensure that he provides the constructor with all relevant
technical information for the execution of the structure; see Annex A.
In order to achieve these objectives, it is necessary that the designer prepare a set of documents and
drawings giving all information required for the execution of the work in accordance with the plans. This set of
documents is in this International Standard referred to as the “execution specification”. This International
Standard leaves a number of items open that can be decided by the execution specification.
It is necessary that the execution specification refer to national provisions in areas where these apply.
It is recognized in this International Standard that areas such as detailed requirements for competence of
personnel and details related to quality management are within the competence of the member states.
A national annex can refer to national standards approved and published by an ISO member body and that
...