Durability Prediction System
| ＞Introduction | ＞Overview | ＞Thermodynamic phase equilibrium model Mass transfer model |
＞Features | ＞Example of durability prediction | ＞Future prospects |
Conventional durability prediction was only able to analyze the behavior of a single degradation factor. For example, the simulation for chloride attack only calculated the movement of chloride ions.
However, inside of actual concrete structures, chloride ions coexist with a variety of other ions. While exerting mutual effect on each other, these ions exchange mass with hydrates. This interaction among ions and hydrates can be calculated using thermodynamic phase equilibrium. Accordingly, in order to accurately predict the movement of mass during a durability simulation, it is essential to create a model for mass transfer which incorporates thermodynamic phase equilibrium.
Our durability prediction system was developed by combining a mass transfer model for multi-species with a phase equilibrium model for hardened cement, thus coupling together reciprocal models. This enables durability simulation which matches actual phenomena.
