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Numerical Simulation and Experimental Set-up for Predicting the Drying Behavior of Calcium Aluminate Cement (CAC)-Bonded Refractory Castables

Recently, complex models have been developed for the prediction of the temperature, pressure, moisture and displacement fields within dense material. Some of them also consider numerous parameters (i.e., multiple phases, the thermomechanical features and the likely induced damage, etc.), but all rely on complex experiments that depend on multiple thermocouples and pressure transducers. According to these advances, by a joint effort between the university and the CAC binder producer, the present work aims to develop an accessible model based on few parameters, which could be validated and adjusted by simple thermogravimetric experiments. The results pointed out that such a framework is promising and able to satisfactorily predict the overall behavior of the castables’ compositions during drying tests. Additionally, the proposed model could also be further validated with current experimental techniques in order to successfully be scaled up and estimate the drying behavior of larger specimens as well as products with more complex geometries.


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