Describing the influence of temperature on water retention using van Genuchten equation

A simple, analytical model was proposed to account for the effect of moderate temperature on water retention in cement-based materials. The model takes advantage of the simplicity and flexibility of van Genuchten equation. It was first calibrated using experimental results taken from literature and then successfully validated on other results. The presented model provides a valuable tool for the description of water transport in unsaturated cementitious materials submitted to moderate temperatures (up to 85 °C).