A Bayesian framework for modeling and testing the temperature-dependent residual compressive strength of concrete

Autor/innen

Md Maidul Islam
Ghent University, Technologiepark-Zwijnaarde 60, Ghent 9052, Belgium
https://orcid.org/0009-0001-4900-7524
Andrea Franchini
Ghent University, Technologiepark-Zwijnaarde 60, Ghent 9052, Belgium
https://orcid.org/0000-0001-9732-2484
Balsa Jovanovic
Ghent University, Technologiepark-Zwijnaarde 60, Ghent 9052, Belgium
https://orcid.org/0000-0001-5200-5848
Ruben Van Coile
Ghent University, Technologiepark-Zwijnaarde 60, Ghent 9052, Belgium
https://orcid.org/0000-0002-9715-6786

Über dieses Buch

This study presents a novel Bayesian model for the temperature-dependent residual compressive strength of a concrete mix. The model consists of a lognormal distribution for the concrete strength retention factor kfc, i.e., the ratio of the compressive strength after exposure to elevated temperature to the initial compressive strength at room temperature. The Bayesian conceptualization of the model enables straightforward updating of the kfc model as new experimental data becomes available. Furthermore, a framework for pre-posterior analysis is presented to guide decision-making before actual data collection. Specifically, the concept of expected information gain (EIG) is adopted to optimize experimental design. This approach allows the identification of optimal measurement temperatures to reduce uncertainty in estimating kfc. The analysis reveals that measuring at 600–900 °C yields a higher information gain than measuring at any other temperature. Comparative analyses illustrate the effectiveness of the EIG concept in guiding experimental planning.

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Veröffentlicht

21.08.2026

Lizenz

Creative Commons License

Dieses Werk steht unter der Lizenz Creative Commons Namensnennung 4.0 International.

Zitationsvorschlag

A Bayesian framework for modeling and testing the temperature-dependent residual compressive strength of concrete. (2026). In REC 2026 - 11th International Workshop on Reliable Engineering Computing: Reliability Computations in a Data and Model-Driven World (pp. 641-649). TUDObooks. https://doi.org/10.17877/tudobooks-11.156