Concrete basic creep prediction based on time–temperature equivalence relation and short-term tests

Abstract EN

Using temperature as an accelerator of reactions in short-term tests for the prediction of concrete creep is the main idea of this paper.

The application of a time-temperature equivalence relation is examined with reference to creep in concrete under constant moisture conditions.

A mathematical model is developed which uses short-term tests to predict long-term creep deformation of concrete under constant moisture conditions, taking into account aging of concrete and the influence of temperature.

The thermal activation is assumed to be governed by the Arrhenius principle, and the activation energy of the viscosity of water is found to be applicable in the analysis of the experimental data.

The proposed model has been verified using selected experimental data, and its satisfactory agreement with experimental observations is illustrated.

Finally, the proposed model is compared mathematically with Bazant and Panula’s model.