The article presents the impact of concrete curing on the shrinkage deformation. It shows how the relative humidity of the environment and the duration of care affect the value of the nominal shrinkage deformation for different classes of concrete. It has been shown that the concrete curing has no significant effect on the autogenous shrinkage, which depends mainly on the factors responsible for the strength of concrete. Its value is an order of magnitude less than the shrinkage by drying. For the reference beam element, assuming various parameters and care of concrete was calculated the shrinkage from drying.

Keywords: concrete, shrinkage deformation fromdrying, curing of concrete.