Materials and Structures

, 52:3 | Cite as

A nearly self-sufficient framework for modelling reactive-transport processes in concrete

  • O. Burkan IsgorEmail author
  • W. Jason Weiss
50 years of Materials and Structures
Part of the following topical collections:
  1. 50 years of Materials and Structures


This paper describes a multi-species and multi-mechanism reactive-transport modelling framework for concrete. This modelling framework has the potential to be used in conjunction with performance specifications currently being developed in the US. The modelling framework is ‘nearly’ self-sufficient as it enables electrical resistivity to be used as the main physically measured input parameter in the simulations. The model uses thermodynamic calculations to predict pore solution composition, pore solution resistivity, pore volumes, and reactions between the solid and ionic components of the cementitious matrix such as chloride binding. The measured electrical resistivity is normalized by the calculated pore solution resistivity to compute the formation factor, which is used to predict transport properties of the ionic species. The framework allows the solution of reactive-transport equations with minimal input data to assess ionic movement, chloride ingress, and time to corrosion.


RILEM Anniversary Concrete Reactive-transport modelling Formation factor Thermodynamic modelling GEMS 



Authors would like to acknowledge the financial support provided by their endowed faculty positions, namely, The Miles Lowell and Margaret Watt Edwards Distinguished Chair in Engineering, and John and Jean Loosely Faculty Fellow. The authors would like to acknowledge Dr. Vahid Jafari Azad for his contributions to the reactive-transport modelling framework presented in this paper, Dr. Qiao Chunyu for his contributions to the development of relationships between formation factor and transport properties in concrete, Luca Montanari for his work on the resistivity of concrete pore solutions, and Dr. Hossein DorMohammadi for his help in performing some of the transport simulations presented in this paper.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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Authors and Affiliations

  1. 1.School of Civil and Construction EngineeringOregon State UniversityCorvallisUSA

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