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Justification and refinements of model B3 for concrete creep and shrinkage 1. statistics and sensitivity

  • RILEM Technical Committees
  • 107-GCS Guidelines for the Formulation of Creep and Shrinkage Prediction Models
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Abstract

Model B3 for creep and shrinkage prediction in the design of concrete structures, presented as a RILEM Recommendation inMater Struct.28 (1995) 357–365, is calibrated by a computerized data bank comprising practically all the relevant test data obtained in various laboratories throughout the world. The coefficients of variation of deviations of the model from the data are distinctly smaller than for the latest CEB model, and much smaller than for the previous ACI model (which was developed in the mid-1960's). The effect of concrete composition and design strength on the model parameters is identified as the main source of error. The model is simpler than the previous models (BP and BP-KX) developed at Northwestern University, yet it has comparable accuracy and is more rational.

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Authors and Affiliations

  1. Department of Civil Engineering and Materials Science, Northwestern University, 60208, Evanston, IL, USA

    Zdenêk P. Bažant & Sandeep Baweja

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  1. Zdenêk P. Bažant
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  2. Sandeep Baweja
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Bažant, Z.P., Baweja, S. Justification and refinements of model B3 for concrete creep and shrinkage 1. statistics and sensitivity. Materials and Structures 28, 415–430 (1995). https://doi.org/10.1007/BF02473078

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