3.1.4 Creep and shrinkage

C3.1.4 Creep and shrinkage

Clause [3.1.4-EC2] is about creep and shrinkage.

These two phenomena are typical of concrete. The first relates to the increase in the deformation with time in presence of permanent actions, the second is a spontaneous variation of volume. The development of both phenomena depends on the ambient humidity, the dimensions of the element and the composition of the concrete. Creep is also influenced by the maturity of the concrete when the load is first applied and depends on the duration and magnitude of the loading.

The creep deformation of concrete £cc(»,to) at time t = ~ for a constant compressive stress Oc applied at the concrete age to, is given by:

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