The content of this guideline is based upon the scientific and technical work carried out in the Danish innovation consortium “Sustainable concrete structures with steel fibres” running from 2010 to 2013. The project was funded by the participating partners and by the Danish Agency for Science, Technology and Innovation.
The output of the project is, among others, guidelines on design and execution of steel fibre reinforced concrete (SFRC). In particular, the project has focused on steel fibre reinforced self-compacting concrete (SFRSCC), which is also the focus of this guideline.
SCC is known to improve the working environment and productivity. SFRC is known to improve the ductile behaviour of concrete, which can be taken into account to reduce and simplify the layout of conventional reinforcement. SFRSCC combines advantages of the two types of concrete, making the concrete an attractive building material. On the other hand, SFRSCC brings several new challenges. Steel fibres immersed in SFRSCC quickly orientate following the flow pattern of the concrete. This can lead to a significant anisotropy in the mechanical behaviour of the concrete, which can be viewed as a strength and weakness of the material. Such anisotropy can be unacceptable if the associated variation in strength is not taken into account in the design process.
This guideline is meant as a tool to assist designers and contractors in choosing fibre orientation factors for different types of applications. Furthermore, this guideline gives recommendations for the practical handling of SFRSCC on the job site e.g. what to be aware of compared to ordinary SCC.
This guideline builds upon the ”Guideline for execution of SCC” published in 2008 as a part of the SCC-Consortium running from 2003 to 2007. Therefore, a general understanding of the properties of SCC is assumed.
The core partners in the SFRC Consortium were:
- Danish Technological Institute
- Technical University of Denmark
- COWI A/S
- MT Højgaard A/S
- Unicon A/S
- Aalborg Portland A/S
- Bekaert A/S
- Hi-Con A/S
- CRH Concrete A/S
- Convi ApS
- The Danish Precast Association
The associated partners in the SFRC Consortium were:
- Rail Net Denmark
- Femern A/S
- Confederation of Danish Industry
- Danish Road Directorate
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