Modeling of viscoelastic strain and creep for hardening structures based on cement under temperature gradients
During the hardening period, materials based on cement experience deformation due to heat generation and moisture movement or internal consumption of water by cement. All these processes inuence the change of material volume. As a result, these factors can lead to water tightness problems, durability problems and damage due to frost, which means that numerical simulation of its properties is important problem. So, in order to predict and prevent these problems, a numerical model should be developed in a proper way. For example, accurate consideration of heat generation and heat loss should be incorporated to calculate the temperature distribution gradients. The rst goal of the research is to present numerical model of temperature calculation and then using this data to estimate thermal dilation and autogenous shrinkage during the contraction phase. As is well known, creep also inuences on stress state for hardening materials and is a relaxation factor during the cooling period. Finally, the aim is to model a creep eect.