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International Conference on Calcium Aluminates 2026

8–11 Jun 2026
SwissTech Convention Center EPFL
Europe/Zurich timezone

Session

Biogenic Corrosion

10 Jun 2026, 11:15
SwissTech Convention Center EPFL

SwissTech Convention Center EPFL

SwissTech Convention Center, EPFL, Rue Louis Favre 2, Ecublens, Switzerland

Conveners

Biogenic Corrosion

  • Robert Fetter (IAB – Institut für Angewandte Bauforschung Weimar gGmbH)

Presentation materials

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  1. 20. Performance Based Assessment of Novel Cementitious Materials for Sewer Infrastructure
    Marjorie Valix (The University of Sydney)
    10/06/2026, 11:15
    Biogenic Corrosion
    Oral Presentation

    Civil infrastructure assets such as underground pipes, manholes, access chambers, and pumping stations are frequently exposed to aggressive environments including sulphates, chlorides, and biogenic sulphuric acid. Traditional general-purpose (GP) and blended (GB) cements often lack the chemical resistance needed, leading to shorter service life and higher maintenance costs. This study...

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  2. 12. Modeling CAC Mortar Degradation under Acetic Acid Exposure
    Neven Ukrainczyk (TU Darmstadt)
    10/06/2026, 11:45
    Biogenic Corrosion
    Oral Presentation

    The degradation of concrete due to acid attack is commonly assessed by the depth of deterioration from the original surface. This study evaluates the applicability of a simple diffusion-based model to determine the apparent diffusion coefficient (D_app), comparing it to an empirically modified square-root-of-time approach from the fib Model Code 2020. Model calibration was based on accelerated...

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  3. 45. Understanding biodeterioration mechanisms of a calcium aluminate–based coating affected by substrate cracking
    Dr Reem Hoballah (INSA Toulouse)
    10/06/2026, 12:05
    Biogenic Corrosion
    Oral Presentation

    Calcium aluminate cement (CAC)-based coatings have demonstrated superior resistance to microbially-induced concrete deterioration (MICD) in wastewater infrastructures and are widely used to protect Portland cement-based concrete The key factor in the resistance of CAC lies in its chemical and microstructural nature. However, in the penalizing case of crack initiation within the underlying...

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  4. 21. A Framework for Classifying Sewer Gas-Phase Corrosivity Based on Material Response
    Marjorie Valix (The University of Sydney)
    10/06/2026, 12:25
    Biogenic Corrosion
    Poster Presentation

    Concrete, protective coatings, and other construction materials deteriorate under biologically induced corrosive conditions commonly found in sewer systems. Understanding "corrosivity"—the severity of corrosion in a given environment—is essential for selecting appropriate materials, designing mitigation strategies, and estimating service life and lifecycle costs.

    This study focuses on...

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  5. 17. Study of the durability of calcium aluminate cement on wastewater treatment plant
    Marielle Guéguen Minerbe (Université Gustave Eiffel)
    10/06/2026, 12:45
    Biogenic Corrosion
    Oral Presentation

    Urbanisation is leading to the installation of increasingly efficient wastewater treatment systems to limit discharges into the natural environment. To date, concrete biodeterioration in relation to wastewater treatment systems has been studied mainly in sewer networks, where it has been linked to biological activity in the presence of hydrogen sulphide, leading to irreversible damage....

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