Creep and shrinkage in a lightweight-aggregate concrete

A model is presented for the determination of the creep and shrinkage of a large reinforced concrete structure from the shrinkage data of a small plain concrete prism. The method is based on the linear relationship between drying creep and concurrent shrinkage and the relationship between drying shrinkage and the exposed area to volume ratio of a concrete specimen. This model was developed to obtain time-dependent properties of concrete slabs for the non-linear finite element analysis of restrained concrete slabs. Results obtained from the creep and shrinkage model and conclusions are also presented.