Advertisement

“Structural Design with Flowable Concrete” - A fib-Recommendation for Tailor-Made Concrete

  • Steffen Grünewald
  • Liberato Ferrara
  • Frank Dehn
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 1)

Abstract

Flowable concrete (either compacted with some vibration or selfcompacting) is becoming a widely applied building material. Due to its flowable nature, reinforcing bars can become an obstacle, mixture components may float or segregate and the casting technique determines the orientation of fibers, if any. An increasing range of components is available to optimize concrete concerning rheological and hardened state properties and for the application under consideration. Flowable concrete offers an extended range of engineering properties and the potential for product innovation. fib Task Group (TG) 8.8 “Structural Design with Flowable Concrete” started in 2009 to facilitate the use of innovative flowable materials for the design of concrete structures. Taking into account research findings and practical experience, the main objectives of fib TG 8.8 are to write a state-of-the-art report and recommendations on the structural design with flowable concrete. fib TG 8.8 considers three aspects of flowable concrete: material properties, production effects and structural boundary conditions. This paper discusses the scope of fib TG 8.8 concerning the characteristics and the potential of flowable concrete and presents related design standards. fib TG 8.8 aims at promoting the application of flowable concrete, improving and adapting the concrete design and the production technology and its implementation in guidelines and codes.

Keywords

Hardened State Engineer Cementitious Composite Slump Flow Design Recommendation Vibrate Concrete 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    De Schutter, G., Bartos, P.J.M., Domone, P. and Gibbs, J. (2008), Self-Compacting Concrete, Whittles Publishing, Scotland.Google Scholar
  2. 2.
    Wallevik, O.H. and Nielsson, I. (1999), Self-Compacting Concrete – A rheological approach, Proc. of the Int. Workshop on SCC, Kochi, Ozawa, K. and Ouchi, M. (Eds), JSCE, pp. 136–159.Google Scholar
  3. 3.
    Ferrara, L. (2009), Statistical properties of steam-cured plant-produced SCC for prestressed precast applications, Proc. 2nd Int. Symp. on Design, Performance and Use of SCC, Beijing, C. Shi et al. (Eds.), pp. 483–494.Google Scholar
  4. 4.
    RILEM TC205-DSC (2007), State-of-the-Art report: Durability of Self-Compacting Concrete, De Schutter, G. and Audenaert, K. (Eds.).Google Scholar
  5. 5.
    Cussigh, F. (2007), SCC in practice: opportunities and bottlenecks, Proc. 5th Int. RILEM Symp. on SCC, Ghent, De Schutter, G. and Boel, V. (Eds.), pp. 21–28.Google Scholar
  6. 6.
    Desmyter, J.R. (2007), Barriers to the application of cast-in-place SCC, Proc. 5th Int. RILEM Symp. on SCC, Ghent, De Schutter G. and Boel, V. (Eds.), pp. 373–378.Google Scholar
  7. 7.
    Ferrara, L., di Prisco, M. and Khurana, R.S. (2008), Tailoring optimum performance for structural use of self consolidating SFRC, Proc. Befib 2008, 7th Int. RILEM Symp. on FRC, Chennai, R. Gettu (Ed.), pp. 739–750.Google Scholar
  8. 8.
    CEN, European committee for standardization (2009), Fpr 206-9: Concrete – Part 9: Additional rules for self-compacting concrete (SCC).Google Scholar
  9. 9.
    CEN, European committee for standardization (2009), FprEN 12350, Testing fresh concrete: Slump flow test (part 8), V-funnel test (part 9), L box test (part 10), Sieve segregation test (part 11), J-ring test (part 12).Google Scholar
  10. 10.
    Thorenfeldt E.V. et al. (2006), Steel Fibre Reinforcement in Concrete, Guidelines for Design, Execution and Control, Sintef, Trondheim, Norway (in Norwegian).Google Scholar
  11. 11.
    Japanese Society of Civil Engineers (2008), Recommendations for Design and Construction of High Performance Fiber Reinforced Cement Composites with multiple fine cracks, www.jsce.or.jp/committee/concrete/e/hpfrcc_JSCE.pdf.
  12. 12.
    AFGC (2002), Ultra-High Performance Fibre-Reinforced Concretes, Interim Recommendations.Google Scholar
  13. 13.
    Japan Society for Civil Engineers (2006), Recommendation for Design and Construction of Ultra High Strength Fiber Reinforced Concrete Structures (Draft).Google Scholar
  14. 14.
    Midorikawa, T., Pelova, G.I. and Walraven, J.C. (2001), Application of “The Water Layer Model” to self-compacting mortar with different size distribution of fine aggregate, Proc. 2nd Int. Symp. on SCC, Tokyo, Ozawa, K. and Ouchi, M. (Eds.), COMS Engineering Corporation, pp. 237–247.Google Scholar
  15. 15.
    Okamura, H., Maekawa, K. and Ozawa, K. (1993), High Performance Concrete, Gihodo Publishing (in Japanese).Google Scholar
  16. 16.
    Bui, V.K., Akkaya, J. and Shah, S.P. (2002), Rheological model for self-consolidating concrete, ACI Materials Journal, vol. 99, no. 6, pp. 549–559.Google Scholar
  17. 17.
    Den Uijl, J. (2002), Background Report: CUR-Recommendation – Self-compacting concrete, CUR Gouda (in Dutch).Google Scholar
  18. 18.
    Müller, F.V. and Wallevik, O.H. (2008), Benefits of filler material on rheology in Eco-SCC, Proceedings of the 3rd North American Conference on the Design and Use of SCC, to be published.Google Scholar
  19. 19.
    Desnerck, P., Taerwe, L. and De Schutter, G. (2007), Experimental determination of bond strength of reinforcing bars in SCC, Proc. of the 5th Int. RILEM Symp. on SCC, Ghent, De Schutter, G. and Boel, V. (Eds.), pp. 659–664.Google Scholar
  20. 20.
    Wang, S. and Li, V.C. (2006), High-early-strength engineered cementitious composites, ACI Materials Journal, vol. 103, n. 2, pp. 97–105.Google Scholar
  21. 21.
    Hajar, Z., Lecointre, D., Simon, A. and Petitjean, J. (2004), Design and construction of the world first Ultra-High Performance Concrete road bridges, 1st Int. Symposium on UHPC, Kassel, Schmidt, M. et al. (Eds.), pp. 39–48.Google Scholar
  22. 22.
    Wallevik, O.H. (2003), Rheology – A scientific approach to develop self-compacting concrete, Proc. 3rd Int. Symp. on SCC, Reykjavik, Wallevik, O.H. and Níelson, I., (Eds.), pp. 23–34.Google Scholar
  23. 23.
    Rigueira, J.W., García-Taengua, E. and Serna-Ros, P. (2009), Self-consolidating concrete robustness in continuous production regarding fresh and hardened state properties, ACI Materials Journal, vol. 106, n. 3, pp. 301–307.Google Scholar
  24. 24.
    Domone, P.L. (2006), Self-compacting concrete, An analysis of 11 years of case-studies, Cement & Concrete Composites, vol. 28, pp. 197–208.CrossRefGoogle Scholar
  25. 25.
    Domone, P.L. (2007), A review of the hardened mechanical properties of self-compacting concrete, Cement & Concrete Composites, vol. 29, pp. 1–12.CrossRefGoogle Scholar
  26. 26.
    DAfStb - Deutscher Ausschuss für Stahlbeton (2001), State-of-the-art Report Self-Compacting Concrete, Reinhardt, H.W. et al. (Eds.), Heft 516, Beuth Verlag (in German).Google Scholar
  27. 27.
    Ferrara, L., Park, Y.D. and Shah, S.P. (2007), A method for mix-design of fiber reinforced self compacting concrete, Cement and Concrete Research, vol. 37, pp. 957–971.CrossRefGoogle Scholar
  28. 28.
    Grünewald, S. (2004), Performance-based design of self-compacting fibre reinforced concrete, PhD Thesis, Concrete Structures Group, TU Delft, Delft University Press.Google Scholar

Copyright information

© RILEM 2010

Authors and Affiliations

  • Steffen Grünewald
    • 1
  • Liberato Ferrara
    • 2
  • Frank Dehn
    • 3
  1. 1.Delft University of Technology/Hurks BetonDelftThe Netherlands
  2. 2.Politecnico di MilanoMilanoItaly
  3. 3.University of Leipzig/MFPA LeipzigLeipzigGermany

Personalised recommendations