Engineering model for capillary sorption

This lecture introduces an engineering model for capillary sorption in cementitious materials, focusing on a simple model with semi-physical parameters to analyze sorption and transport. The model's foundations are based on capillary flow formulations related to saturation and water content, aiming to understand the sorptivity concept. The lecture also covers the saturation front behavior and its mathematical representation, along with a comparison between a full model and the engineering model. Finally, a sharp front approximation is discussed, leading to conclusions about the model's applicability.