DAfStb guideline „Concrete components with non-metallic reinforcement“
Table of contents
Project data
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Titel | Title |
Report in the annual report 2022
The First step towards a standard
Yellow print of the guideline of the DAfStb
Research on non-metallic reinforcements for concrete has been going on for over 20 years, always with the aim of creating a high-performance and corrosion-resistant building material. Several design approaches have been developed and adapted to the continuous advancement of the materials, however a superordinate set of rules was still missing. A first step has been taken with the inclusion of non-metallic reinforcement in Annex R of the Eurocode 2, but the practical construction applications implemented so far are always based on time-consuming and cost-intensive approvals on a case-by-case basis.
For this reason, in 2018, a consortium led by the association Deutscher Ausschuss für Stahlbeton e. V. (DAfStb; in English: German Committee for Steel-Reinforced Concrete) and consisting of more than 30 partners from industry, research and public authorities started to draft a guideline for the use of non-metallic reinforcement in concrete construction. Their yellow print was published in November 2022. The deadline for comments is 31 March 2023.
The guideline consists of five sections, with the focus on the first part, which regulates the static dimensioning and structural design of building components based on Eurocode 2. The scope of the guideline is limited to predominantly static loads and non-prestressed components. The second part regulates the requirements for the reinforcement products and specifies the characteristic values for the producers. In addition, the fourth part of the guideline contains recommendations on the test methods to determine the material parameters. Particularities that arise in construction with the new materials are described in part 3. Finally, part 5 provides information about the required verifications for the usability of the non-metallic reinforcement and the applicability of the construction method, which guide the planner through the current process of application.
Furthermore, our institute was involved in the joint research project C3-L9, which also had the aim of drafting a guideline. In terms of content, research results were also taken into account that are not yet applied in the current draft, including approaches for pre-stressing and dynamic loading. The results of the C3-L9 project will serve as basis for future versions of the guideline.