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SPP 1122:  Prediction of the Course of Physicochemical Damage Processes Involving Mineral Materials

Subject Area Construction Engineering and Architecture
Term from 2001 to 2008
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 5471273
 
Because of their porous structure, most mineral materials in architecture can be affected by aggressive gases and fluids penetrating and interacting physically or chemically with the material.Aim of the Priority Program is to develop procedures for predicting the time dependent progression of such deterioration processes by computer simulation. Much more reliable results can be expected in this way compared to the more empirically stamped procedures up to now. Promising basic approaches exist. So the way leads from more experimentally- orientated concepts to computer supported simulations of processes.The modeling should be able to describe close to reality all physical and chemical states and effects inside of the material like mass and heat transport, inner surface sorption, solving- dissolution processes, chemical reactions, phase changing and related internal pressures, interactions to chemical and physical boundary conditions etc.Thermodynamaic creation of appropriate models, description of the processes and matching mathematic formulation are the basic targets of the Priority Program. If necessary, experimentel work can be done in addition to determine material parameters and to verify simulation results.
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