Structural Engineering and Mechanics

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Finite element analysis of concrete cracking at early age

  • Aurich, Mauren (Department of Civil Engineering, Pontifical Catholic University of Rio Grande do Sul) ;
  • Filho, Americo Campos (Department of Civil Engineering, Federal University of Rio Grande do Sul) ;
  • Bittencourt, Tulio Nogueira (Polytechnical School, University of Sao Paulo) ;
  • Shah, Surendra P. (Department of Civil Engineering, Northwestern University)
  • Received : 2009.06.18
  • Accepted : 2010.10.21
  • Published : 2011.03.10
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Abstract

The study of the early age concrete properties is becoming more important, as the thermal effects and the shrinkage, even in the first hours, could generate cracks, increasing the permeability of the structure and being able to induce problems of durability and functionality in the same ones. The detailed study of the stresses development during the construction process can be decisive to keep low the cracking levels. In this work a computational model, based on the finite element method, was implemented to simulate the early age concrete behavior and, specially, the evaluation of the cracking risk. The finite element analysis encloses the computational modeling of the following phenomena: chemical, thermal, moisture diffusion and mechanical which occur at the first days after the concrete cast. The developed software results were compared with experimental values found in the literature, demonstrating an excellent approach for all the implemented analysis.

Keywords

References

  1. Altoubat, S.A. and Lange, D.A. (2001), "Creep, shrinkage and cracking of restrained concrete at early age", ACI Mater. J., 98(4), 323-331.
  2. Aurich, M. (2008), "Numerical simulation of the early age concrete behavior", Ph.D. Dissertation, Polytechnical School at University of Sao Paulo.
  3. Baluch, M.H., Rahman, M.K. and Mahmoud, I.A. (2008), "Calculating drying-shrinkage stresses", Concrete Int. Mag., 30(7), 37-41.
  4. Bathe, K.J. (1996), Finite Element Procedures, Englewood Cliffs, New Jersey, Prentice Hall.
  5. Bazant, Z.P. and Najjar, L.J. (1972), "Nonlinear water diffusion in nonsaturated concrete", Mater. Struct., 5(1), 3-20.
  6. Bazant, Z.P. and Wu, S.T. (1974), "Rate-type creep law of aging concrete based on maxwell chain", Mater. Struct., 7(1), 45-60.
  7. Comite Euro-International du Beton (1993), CEB-FIP Model Code 1990, Bulletin d'Information, 213/214.
  8. de Borst, R. and van den Boogaard, A.H. (1994), "Finite-element modeling of deformation and cracking in early-age concrete", J. Eng. Mech.-ASCE, 120(12), 2519-2534. https://doi.org/10.1061/(ASCE)0733-9399(1994)120:12(2519)
  9. Federation Internationale du Beton (1999), Structural Concrete, Textbook on Behavior, Design and Performance - Updated Knowledge of the CEB/FIP Model Code 1990, (Bulletin 1-3).
  10. Grzybowski, M. and Shah, S.P. (1990), "Shrinkage cracking of fiber reinforced concrete", J. Am. Concrete Inst., 87(2), 138-148.
  11. Jeon, S.J. (2008), "Advanced assessment of cracking due to heat of hydration and internal restraint", ACI Mater. J., 105(4), 325-333.
  12. Kvoler, K. (1994), "Testing system for determining the mechanical behavior of early age concrete under restrained and free uniaxial shrinkage", Mater. Struct., 27(34), 324-330. https://doi.org/10.1007/BF02473424
  13. Kwon, S.H. and Shah, S.P. (2008), "Prediction of Early Age Cracking of Fiber-Reinforced Concrete Due to Restrained Shrinkage", ACI Mater. J., 105(4), 381-389.
  14. Lura, P. (2000), "Autogenous deformation and internal curing of concrete", Ph.D. Dissertation, Delft University of Technology, Delft.
  15. Morabito, P. (1998), Methods to Determine the Heat of Hydration of Concrete. Prevention of Thermal Cracking in Concrete at Early Ages, Report 15, R. Springenschmid, E & FN SPON.
  16. Ottosen, N.S. (1997), "A failure criterion for concrete", J. Eng. Mech. Div.-ASCE, 103(4), 527-535.
  17. Shah, S.P., Karaguler, M.E. and Sarigaphuti, M. (1993), "Effects of Shrinkage-Reducing Admixtures on Restrained Shrinkage Cracking of Concrete", ACI Mater. J., 89(3), 138-148.
  18. Shah, S.P., Ouyang, C., Marikunte, S., Yang, W. and Aldea, C. (1997), "Control of cracking with shrinkagereducing admixtures", Transp. Res. Rec., 1574, 25-36. https://doi.org/10.3141/1574-04

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