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Computers and Concrete
  Volume 11, Number 6, June 2013, pages 587-602

Predictive modeling of concrete compressive strength based on cement strength class
V.G. Papadakis and S. Demis

Abstract     [Full Text]
    In the current study, a method for concrete compressive strength prediction (based on cement strength class), incorporated in a software package developed by the authors for the estimation of concrete service life under harmful environments, is presented and validated. Prediction of concrete compressive strength, prior to real experimentation, can be a very useful tool for a first mix screening. Given the fact that lower limitations in strength have been set in standards, to attain a minimum of service life, a strength approach is a necessity. Furthermore, considering the number of theoretical attempts on strength predictions so far, it can be seen that although they lack widespread accepted validity, certain empirical expressions are still widely used. The method elaborated in this study, it offers a simple and accurate, compressive strength estimation, in very good agreement with experimental results. A modified version of the Feret\'s formula is used, since it contains only one adjustable parameter, predicted by knowing the cement strength class. The approach presented in this study can be applied on any cement type, including active additions (fly ash, silica fume) and age.
Key Words
    cement; compressive strength; concrete; modeling; software; strength class
V.G. Papadakis; Department of Environmental and Natural Resources Management, University of Western Greece,Agrinio, Greece
S. Demis; Department of Civil Engineering, University of Patras/AEIPLOUS Institute for Innovation & Sustainable Development, Patras, Greece

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