Formwork Pressure of Highly Workable Concrete – Experiments Focused on Setting, Vibration and Design Approach

  • Tilo Proske
  • Carl-Alexander Graubner
Conference paper
Part of the RILEM Bookseries book series (RILEM, volume 1)


The presented investigations were conducted at the Institut für Massivbau and contributed to a joint research project including several German research institutes [1]. A number of experimental tests on highly workable concretes were carried out. Small scale material analyses as well as measurements of the formwork pressure on large specimens were carried out. Based on the test results an analytical model for the calculation of the concrete pressure on vertical formwork was developed. The analytical model takes into account the time dependent material parameters of the fresh concrete, the specific properties of highly workable vibrated concretes and self-compacting concretes (SCC) as well as operation aspects. A proposal for the design of formwork, based on the experimental tests and the semi-probabilistic safety concept was developed. It was found that even for highly workable concretes, the design load is often lower than the hydrostatic concrete pressure.


Friction Resistance Casting Rate Ultimate Limit State Friction Element Final Setting Time 
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  1. 1.
    Graubner, C.-A., Beitzel, H., Beitzel, M., Bohnemann, C., Boska, E., Brameshuber, W., Dehn, F., König, A., Lingemann, J., Motzko, C., Müller, H.S., Pistol, K., Proske, T., Stettner, C. and Zilch, K. (2008), Formwork pressure asserted by highly workable concretes, F09-7-2008, TU Darmstadt, Institut für Massivbau (in German).Google Scholar
  2. 2.
    Proske, T. (2007), Formwork pressure asserted by self-compacting concrete Ph.D. Thesis, Technische Universität Darmstadt (in German).Google Scholar
  3. 3.
    DIN 18218:2010-01 (2010), Pressure of fresh concrete on vertical formwork, Beuth Verlag (in German).Google Scholar
  4. 4.
    Graubner, C.-A. and Proske, T. (2007), Formwork Pressure of Concretes with High Workability, Advances in Construction Materials, Stuttgart, Springer-Verlag.Google Scholar
  5. 5.
    Vanhove, Y. et al. (2001), Study of self-compacting concrete pressure on formwork, Proceedings of the Second International Symposium on Self-Compacting-Concrete, COMS Eng. Corporation, Fukui/Japan.Google Scholar
  6. 6.
    Ovarlez, G. and Roussel, N. (2006), A physical model for the prediction of lateral stress exerted by self-compacting concrete on formwork, Materials and Structures, vol. 39.Google Scholar
  7. 7.
    Khayat, K. H. and Assaad, J. (2008), Use of thixotropy-enhancing agent to reduce formwork pressure exerted by self-consolidating concrete, ACI Materials Journal, vol. 105, n. 1.Google Scholar
  8. 8.
    Gregori, A., Ferron, R., Sun, Z. and Shah, S.P. (2008), Experimental simulation of self-consolidating concrete formwork pressure, ACI Materials Journal, vol. 105, n. 1.Google Scholar

Copyright information

© RILEM 2010

Authors and Affiliations

  • Tilo Proske
    • 1
  • Carl-Alexander Graubner
    • 1
  1. 1.Institut für MassivbauTechnische Universität DarmstadtDarmstadtGermany

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