Creep and Shrinkage Prediction Model for Analysis and Design of Concrete Structures: Model B3-Short Form

A short model for the characterization of concrete creep and shrinkage in design of concrete structures is proposed. The main simplification compared to model B3 comes from the use of the log double power law as the basic creep compliance function. The B3 formulae for predicting material parameters in the model are simplified by dropping the dependence of these parameters on the composition of concrete mix, leaving only dependence on the strength and the specific water content of the concrete mix. The differences between the present short form and model B3 are discussed and limitations of the short form as compared to model B3 are noted. The model is suitable for design of concrete structures with the exception of highly creep sensitive structures for which the full model B3 is necessary.