The shrinkage represents a time dependent deformation which reduces the volume of concrete, without the impact of external forces. The time flow and the final values of shrinkage are influenced by numerous factors: temperature and humidity, dimensions of elements, the type and quantity of cement, w/c factor, granulometric and mineralogical composition of aggregates, concrete strength, method of workability and curing, concrete age at the end of curing and many other factors. Basically, it is a combination of several basic types of shrinkage which will be presented in this paper.
