ISO/TC 71/SC 3 - Concrete production and execution of concrete structures

This document specifies requirements for the properties for silica fume, siliceous fly ash and ground granulated blastfurnace slag for use as a type II addition for production of concrete conforming to ISO 22965. Additions according to this document can also be used in mortars and grouts. This document applies to the silica fume which is a by-product of the smelting process used to produce silicon metal and ferro-silicon alloys. Fly ash produced with other types or higher percentages of co-combustion materials than those provided for in this document is outside the scope of this document. Ground granulated blastfurnace slag containing any added materials other than grinding aids and/or gypsum (calcium sulfate) is not within the scope of this document. It is not within the scope of this document to specify provisions for the practical application of additions in the production of concrete, mortar or grout, i.e. requirements concerning composition, mixing, placing, curing, etc. NOTE Some rules are given in ISO 22965‑2, e.g. provisions on general suitability and use of additions. Guidance on batching, control of additions content and the use of the k-value concept are also given in ISO 22965‑2.

ISO 19596 specifies definitions and requirements for admixtures for use in concrete in accordance with ISO 22965. ISO 19596 does not specify provisions governing the practical application of admixtures in the production of concrete, i.e. requirements concerning composition, mixing, placing, curing, etc. of concrete containing admixtures.

ISO 19595:2017 specifies the properties and requirements of aggregates obtained by processing natural materials and mixtures of these aggregates for use in concrete. It is applicable to aggregates with an oven-dried particle density greater than 2,00 Mg/m3 (2 000 kg/m3) in accordance with ISO 22965 (all parts). ISO 19595:2017 incorporates a general requirement that natural aggregates are not intended to release any harmful substances in excess of the maximum permitted levels specified for the material or permitted in the national regulations of the place in use. National provisions, preferably given in a national annex or a project specification, can specify additional or deviating requirements. NOTE Requirements for the end use of aggregates in concrete are specified in ISO 22965 (all parts).

This part of ISO 14824 describes the test methods for grout specified in ISO 14824-1. The test methods are applicable to grout for all types of structures, including bridges and buildings.

This part of ISO 14824 gives the procedures to be used for grouting of tendons in post-tensioned prestressed concrete. It is applicable to all types of structures, including bridges and buildings. This part of ISO 14824 also covers suitability testing and inspection testing for grouts and their component materials used on a project.

This part of ISO 14824 covers the materials that may be used in the manufacture of cement grouts and the required properties and composition of the grout. It is applicable to grouting of tendons in all types of structures, including bridges and buildings.

This International Standard specifies principles and recommends procedures for the verification of the durability of concrete structures subject to: — known or foreseeable environmental actions causing material deterioration ultimately leading to failure of performance; — material deterioration without aggressiveness from the external environment of the structure, termed selfageing. NOTE The inclusion of, for example, chlorides in the concrete mix might cause deterioration over time without the ingress of additional chlorides from the environment. This International Standard is intended for use by national standardization bodies when establishing or validating their requirements for durability of concrete structures. It may also be applied: — for the assessment of remaining service life of existing structures; and — for the design of service life of new structures provided quantified parameters on levels of reliability and design parameters are given in a national annex to this International Standard. Fatigue failure due to cyclic stress is not within the scope of this International Standard.

ISO 12439_2010 specifies the requirements for water that is suitable for making concrete in accordance with ISO 22965 (all parts) and describes methods for assessing its suitability.

ISO 22966:2009 gives common requirements for the execution of concrete structures and applies to both in-situ works and construction using prefabricated concrete elements. ISO 22966:2009 requires that the execution specification state all the specific requirements relevant to the particular structure. ISO 22966:2009 is applicable to temporary as well as permanent concrete structures. Additional or different requirements can be considered and, if required, given in the execution specification when using lightweight aggregate concrete; other materials (e.g. fibres) or constituent materials; or special technologies/innovative designs. ISO 22966:2009 does not apply to the following: concrete members used only as equipment or construction aids for the execution; specification, production and conformity of concrete; production of precast concrete elements made in accordance with product standards; safety and health aspects of execution, or third-party safety requirements; contractual issues or responsibilities for the identified actions.

ISO 22965-2:2007 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. ISO 22965-2:2007 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 field of the scope of this standard can require or permit deviations from ISO 22965-2:2007. ISO 22965-2:2007 specifies properties of the constituent materials, the production of concrete and the compliance system of concrete. ISO 22965-2:2007 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, concrete with an open structure ("no-fine aggregate" concrete), concrete with a density less than 800 kg/m3 or refractory concrete. ISO 22965-2:2007 does not cover health and safety requirements for the protection of workers during production and delivery of concrete.

ISO 22965-1:2007 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. ISO 22965-1:2007 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 field of the scope of ISO 22965-1:2007, can require or permit deviations from ISO 22965-1:2007. ISO 22965-1:2007 contains requirements for the specification of concrete and guidance for the exchange of information between the specifier and supplier. An informative annex gives general guidance on specification. More specific guidance on specification related to the local conditions can be given in a national annex. ISO 22965-1:2007 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, concrete with an open structure ("no-fine aggregate" concrete), concrete with a density less than 800 kg/m3 and refractory concrete. ISO 22965-1:2007 does not cover health and safety requirements for the protection of workers during production and delivery of concrete.