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Modeling the solidification process in mortar due to internal mass exchange

Aim of the investigation is to model phase transition processes induced by mass transfer in multi‐phase and multi‐species mixtures. More specific, the innovative concept of using Superabsorbent Polymers (SAPs) as additives in grouting mortars represents a promising practical application, e. g. in mechanized tunneling. In this contribution, we focus on both the driving force for mass transfer as well as the kinetics for water migration, whereas an extension to the classical Theory of Porous Media (TPM) provides a reasonable modeling framework. As a result, the gelation process of the mixture can be described with respect to time. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)