M/115 REV - Steel for concrete
Revised mandate M/115 to CEN/CENELEC concerning the execution of standardisation work for harmonized standards on reinforcing and prestressing steel (for concrete)
Mandate M/115 REV is a revised request from the European Commission to CEN and CENELEC to carry out harmonized standardisation work on reinforcing and prestressing steel for concrete. The mandate aims to develop and maintain EU standards that support the safety, quality, and uniformity of steel products used in concrete structures. This update reflects ongoing efforts to align standards with current industry requirements and regulatory frameworks. The decision on the approval or disapproval of this revised mandate was recorded under resolution CEN/BT C07/2010.
Purpose
The mandate M/115 REV concerns the revision of an existing standardisation request addressed to CEN and CENELEC. Its purpose is to direct the development and execution of harmonised standards related to reinforcing and prestressing steel used in concrete construction. These standards aim to ensure safety, reliability, and interoperability in construction materials throughout the European Union.
Standardisation request
This revised mandate requests CEN and CENELEC to carry out standardisation activities for steel products that are intended for use as reinforcement or prestressing elements in concrete structures. The focus is on producing harmonised standards that cover the technical specifications, performance requirements, and testing methods for such steel. This enables uniformity and legal compliance across member states.
Expected deliverables
Although specific deliverables are not detailed in the metadata, the mandate generally expects CEN and CENELEC to develop updated or new harmonised European Standards (hENs) for reinforcing and prestressing steel. These standards will support the implementation of relevant EU legislation, facilitate the free movement of construction products, and contribute to safe construction practices.
Context
Mandate M/115 REV revises the original M/115 mandate, reflecting changes or additional needs in the standardisation of steels for concrete reinforcement. It is part of the EU’s broader effort to harmonise construction product standards under the Construction Products Regulation (EU) No 305/2011 and related frameworks. The resolution reference CEN/BT C07/2010 indicates formal approval or disapproval status of this revised mandate within the CEN/BT (CEN Technical Board).
The mandate covers the development of harmonized standards for reinforcing and prestressing steel used in concrete construction. It focuses on standardization work related to steel products specifically designed to reinforce and strengthen concrete structures within the construction sector.
General Information
1.1 Scope of EN 1993-7
(1) This document is applicable for the design of structural or self-supporting systems made of sandwich panels with steel and stainless steel faces and core material with a Declaration of Performance (according to EN 14509) used as internal and external walls, roofs and ceilings.
1.2 Assumptions
(1) Unless specifically stated, EN 1990-1, EN 1991 (all parts) and EN 1993‐1 (all parts) apply.
(2) The design methods given in EN 1993‐7 are applicable if:
- the construction materials and products are as specified in the relevant parts of EN 14509, or
- in the relevant material and product specifications.
- Draft81 pagesEnglish languagee-Library read for1 day
1.1 Scope of EN 1993-7
(1) This document is applicable for the design of structural or self-supporting systems made of sandwich panels with steel and stainless steel faces and core material with a Declaration of Performance (according to EN 14509) used as internal and external walls, roofs and ceilings.
1.2 Assumptions
(1) Unless specifically stated, EN 1990-1, EN 1991 (all parts) and EN 1993‐1 (all parts) apply.
(2) The design methods given in EN 1993‐7 are applicable if:
- the construction materials and products are as specified in the relevant parts of EN 14509, or
- in the relevant material and product specifications.
- Draft81 pagesEnglish languagee-Library read for1 day
This document specifies the requirements and definitions for the essential characteristics of prestressing bars, which are used for the prestressing of concrete and which are delivered as finished products in the form of:
- hot rolled and processed bars;
- plain and threaded bars.
NOTE 1 The specification of manufacturing processes related to the finished product is required to ensure that the essential characteristics can be tested properly and that test results are valid. It is not possible to anticipate that any other manufacturing process leads to products which can be tested properly with the specified test methods. Thus, a conclusion to the safe application in building construction would not any longer be possible for those products.
This document does not apply to:
- galvanized steel;
- epoxy coated steel;
- reinforcing steel (see EN 10080);
- further processing.
NOTE 2 Example for further processing: Plain bars are also applied in systems for the prestressing of concrete with threaded ends. The threaded ends depend in length and type on the intended use of the system and are manufactured downstream in the supply chain.
- Draft46 pagesEnglish languagee-Library read for1 day
This document specifies product characteristic test/assessment method and the way of expressing test results for stainless steel as defined in EN 10088-1:2014 and designated as in EN 10088-1:2014 for the use of the reinforcement of concrete.
It applies to stainless steel products with ribbed or indented surfaces, which are in the form of:
- bars and coils (rod, wire);
- sheets of factory-made machine-welded fabric;
- lattice girders and hybrid lattice girders composed by stainless steel and by weldable reinforcing steel according to prEN 10080:2023.
Steels according to this document have a ribbed, indented or smooth surface.
NOTE The protrusions between indentations of indented reinforcing steel have the same function as transverse ribs of ribbed reinforcing steel. There is no definition, which specifies the difference between ribbed and indented surface geometry. Therefore, in this document, the same bond parameters are used for ribbed and indented steel.
This document does not apply to:
- pre-stressed stainless steels;
- indented strip;
- stainless steel tube filled with carbon steel swarf, which is then hot or cold reduced;
- stainless steel smooth bar with weld material deposited on it;
- galvanized reinforcing steel;
- epoxy-coated reinforcing steel.
- Draft94 pagesEnglish languagee-Library read for1 day
This document specifies the requirements and definitions for the essential characteristics of prestressing bars, which are used for the prestressing of concrete and which are delivered as finished products in the form of:
- hot rolled and processed bars;
- plain and threaded bars.
NOTE 1 The specification of manufacturing processes related to the finished product is required to ensure that the essential characteristics can be tested properly and that test results are valid. It is not possible to anticipate that any other manufacturing process leads to products which can be tested properly with the specified test methods. Thus, a conclusion to the safe application in building construction would not any longer be possible for those products.
This document does not apply to:
- galvanized steel;
- epoxy coated steel;
- reinforcing steel (see EN 10080);
- further processing.
NOTE 2 Example for further processing: Plain bars are also applied in systems for the prestressing of concrete with threaded ends. The threaded ends depend in length and type on the intended use of the system and are manufactured downstream in the supply chain.
- Draft46 pagesEnglish languagee-Library read for1 day
This document specifies product characteristic test/assessment method and the way of expressing test results for stainless steel as defined in EN 10088-1:2014 and designated as in EN 10088-1:2014 for the use of the reinforcement of concrete.
It applies to stainless steel products with ribbed or indented surfaces, which are in the form of:
- bars and coils (rod, wire);
- sheets of factory-made machine-welded fabric;
- lattice girders and hybrid lattice girders composed by stainless steel and by weldable reinforcing steel according to prEN 10080:2023.
Steels according to this document have a ribbed, indented or smooth surface.
NOTE The protrusions between indentations of indented reinforcing steel have the same function as transverse ribs of ribbed reinforcing steel. There is no definition, which specifies the difference between ribbed and indented surface geometry. Therefore, in this document, the same bond parameters are used for ribbed and indented steel.
This document does not apply to:
- pre-stressed stainless steels;
- indented strip;
- stainless steel tube filled with carbon steel swarf, which is then hot or cold reduced;
- stainless steel smooth bar with weld material deposited on it;
- galvanized reinforcing steel;
- epoxy-coated reinforcing steel.
- Draft94 pagesEnglish languagee-Library read for1 day
Frequently Asked Questions
A European Standardization Mandate is a formal request from the European Commission to the European Standardization Organizations (CEN, CENELEC, and ETSI) to develop European standards (ENs) in support of EU legislation and policies. Mandates are issued under Regulation (EU) No 1025/2012 and help ensure that products and services meet the essential requirements set out in EU directives and regulations.
M/115 REV is a European Standardization Mandate titled "Revised mandate M/115 to CEN/CENELEC concerning the execution of standardisation work for harmonized standards on reinforcing and prestressing steel (for concrete)". Revised mandate M/115 to CEN/CENELEC concerning the execution of standardisation work for harmonized standards on reinforcing and prestressing steel (for concrete) There are 6 standards developed under this mandate.
Standards developed in response to a mandate and cited in the Official Journal of the European Union become "harmonized standards". Products manufactured in compliance with harmonized standards benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation, facilitating CE marking and market access across the European Economic Area.