Steffen Grünewald

Department Structural Engineering
Structural and Building Engineering
Concrete Structures

Building 23 - Room S2 1.05
T: (+31) (0)15 2784580
E: S. Grünewald

Steffen Grünewald studied Civil Engineering at Darmstadt, University of Technology (Germany). In 1999, he started as a researcher at the Concrete Structures Group of Delft University of Technology. In 2004, he completed his PhD on self-compacting fibre reinforced concrete and in 2005, a post-doc research on the effect of viscosity agents on self-compacting concrete. For his PhD-thesis, he was awarded in 2007 the ‘fib Diploma to Younger Engineers’ (Winner category 'Research’), the international award that rewards the best PhD-thesis in the field of concrete and concrete structures.

Since 2005, he has been working part-time as an Assistant Professor at the Concrete Structures Group (Section of Structural and Building Engineering) with the research focus of developing and implementing high performance concretes like fibre reinforced concrete, self-compacting concrete and ultra-high strength concrete and integrating material behaviour, production effects and structural behaviour. The supervision of master thesis projects and the support of PhD-students are a part of his function. Steffen Grünewald is also head of the Material and Quality Department of Hurks Beton (located in Veldhoven), a Dutch producer of prefabricated concrete elements.

He is a member of different RILEM- and fib-committees related to the standardisation and the promotion of high performance concrete and convenor of fib Task-group 8.8 ‘Structural Design with Flowable Concrete’.


    • 1999: Civil Engineer, Technische Universität Darmstadt, Darmstadt (D)
    • 2004: PhD research, Delft University of Technology, Delft (NL)
    • 2010: International Welding Engineer (IWE), WTT Lasopleidingen Rotterdam (NL)

      Work Experience:

        • 1999 - 2004: PhD-student, Delft University of Technology, Delft (NL)
        • 2004 - 2005: Postdoctoral researcher, Delft University of Technology, Delft (NL)
        • 2005 – 2013 (0.8 fte): Hurks Prefabbeton, Veldhoven (NL), Head of Quality and Material Department
        • 2005 - today (0.2 fte): Assistant Professor Concrete Structures Group, Delft University of Technology (NL)
        • 2014 - today (0.2 fte): Postdoctoral researcher, The Magnel Laboratory, Ghent University, Gent (B)
        • 2014 - today (0.6 fte): R&D Manager, Sustainable Concrete Centre, CRH Europe, Oosterhout (NL)


          • Supervision of PhD-students, Bachelor and Master students


            • Optimisation and structural behaviour of fibre concrete and concrete with high flowability (i.e. ultra high strength concrete, self-compacting concrete (SCC), SCC with fibres)
            • Composite-materials and -structures
            • Rheology and flow simulation
            • Structural design with new concrete types

              Committee membership:

                • fib TG 8.6: ‘Ultra High Performance Fibre Reinforced Concrete’ (Member)
                • fib TG 8.8: ‘Structural design with flowable concrete’ (Convenor)
                • fib TG 8.10: ‘Performance-based specifications for concrete’ (Member)

                  Special awards/prizes:

                    • ‘Elkem-Grant’, Outstanding paper and presentation, RILEM-conference ‘Self-compacting concrete in Reykjavik/Iceland 2003
                    • ‘fib Diploma to Younger Engineers’, Winner ‘Category Research’ 2007
                    • Winner Competition Dutch Ministery ‘Rijkswaterstaat’'Repair of steel bridges with less effect on traffic’ 2009, with Hurks Prefabbeton
                    • Dutch Concrete Awards; Winner: 2007 (Category: Execution), 2009 (Oeuvre Award), 2013 (Category: Execution); Nominations (2005 en 2009), with Hurks Prefabbeton

                      Selected Publications:

                      Grünewald S (2004). “Performance-based design of self-compacting fibre reinforced concrete”, PhD-thesis, Delft University of Technology, Department of Structural and Building Engineering, Delft University Press, ISBN: 9040724873.

                      Grünewald S, Ferrara L, Dehn F (2010). “Structural design with flowable concrete – A fib-Recommendation for Tailor-Made Concrete”, In: Design, Production and Placement of Self-Consolidating Concrete, Khayat & Feys (Eds), Rilem Bookseries 1, ISBN: 978-90-481-9663-0, p. 13-24.

                      Grünewald S, Walraven JC (2011). “Maximum Fiber Content and Passing Ability of Self-Consolidating Fiber-Reinforced Concrete”, In: Fiber-Reinforced Self-Consolidating Concrete: Research and Applications, ACI Symposium Publication, ISBN: 0-87031-398-3, p. 15-30.

                      Laranjeira F, Grünewald S, Walraven J, Blom C, Molins C, Aguado A (2011). “Characterization of the orientation profile of steel fiber reinforced concrete”, Journal of Materials and Structures (DOI: 10.1617/s11527-010-9686-s).

                      Grünewald, S. (2012), “Fibre reinforcement and the rheology of concrete”, in: Understanding the rheology of concrete, Editor: N. Roussel, Woodhead Publishing Limited, ISBN: 978-0-85709-028-7, p. 229-256.

                      Schipper R, Grünewald S, Eigenraam P, Raghunath P, Kok M (2014). “Optimization of the Flexible Mould Process for the Double Curved Concrete Elements”, Proceedings of Concrete Innovation Conference (CIC2014), Oslo, ISBN: 978-82-8208-0415, p. 88 (Paper on CD).

                      Grünewald S, Ferrara F, Dehn F (2014). “Optimization of flowable concrete for structural design; Progress report of fib Task Group 8.8”, Proceedings of Concrete Innovation Conference (CIC2014), Oslo, ISBN: 978-82-8208-0415, p. 69 (Paper on CD).

                      Grünewald S, Köhne H (2014). “Ecoconcrete – Balancing environmental and technical aspects of precast concrete”, Ecocrete conference, Reyjavik (to be published).

                      Grünewald S, Walraven JC (2014). “Robust flowable concrete with viscosity agents”, Proceedings of RILEM-conference ‘Application of Superabsorbent polymers and other new admixtures in concrete construction, Dresden (to be published).

                      Blanco A, Cavalaro S, De la Fuente A., Grünewald S, Bloom CBM, Walraven JC (2014). Application of FRC constitutive models to modelling of slabs, Materials and Structures, DOI 10.1617/s11527-014-0369-5.

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