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Quantification of the effect of preventive interventions on the ingress of chloride into concrete structures

Chloride ingress is a common issue in concrete structures that can result in reinforcement corrosion. In order to extend the lifetime of a structure, several preventive repair methodologies are available, which reduce the ingress of chlorides. In this work, the computational efficiency of the analytical model for a two-material diffusion problem has been improved to model the effect of a mortar overlay or partial cover replacement, and is further implemented to model the influence of a coating. This enables the assessment of each repair method in a probabilistic framework using Latin hypercube samples within an acceptable timeframe. A parameter study executed in both a deterministic and probabilistic framework demonstrated the model efficiency and the importance of the timing and quality of the intervention for successful repair when applying a repair intervention in the initiation phase.

On 22 November 2022 a workshop MOW-lifeMACS was organized by EBS (‘Expertise Beton en Staal’) and the lifeMACS partners.

Menno Van de Velde submitted a contribution to the International Conference on Noise and Vibration Engineering (ISMA 2022).

A Mini-Symposium related to the lifeMACS project will be organized during the ICASP14 2023 conference in Dublin (09/07-13/07/2023). 

A Mini-Symposium related to the lifeMACS project will be organized during the IALCCE 2023 conference in Milan (02/06-06/06/2023). 

The lifeMACS researchers submitted three contributions to the fib Congress 2022 in Oslo. These contributions were presented by the respective authors during the conference (12/06-16/06/2022).