Abstract
Creep of concrete is a complex phenomenon that has proven difficult to model. Although laboratory tests may be undertaken to determine the deformation properties of materials, these are time consuming, often expensive, and generally not a practical option. National design codes, therefore, rely on empirical prediction models to estimate the magnitude and development of the creep strain. This chapter considers the suitability of seven “code type,” creep prediction models when compared with the actual strains measured on a range of concretes under laboratory control conditions. The concretes tested incorporate three aggregate types and two strength grades for each aggregate type.