How can corrosion damages be estimated based on surface observations?
Typ
Examensarbete för masterexamen
Master's Thesis
Master's Thesis
Program
Structural engineering and building technology (MPSEB), MSc
Publicerad
2024
Författare
Vafaeizadeh, Mojtaba
Uqla, Ahmad
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Reinforced concrete structures are widely used, but their lifespan is often shortened
by reinforcing bar corrosion. Since concrete and steel production is resource-intensive
and contributes to carbon emissions, enhancing the durability of existing structures
can reduce material demand and environmental impact.
Visual inspections are largely based on surface observations. As corrosion progresses,
the expansion of corrosion products increases the stress within the concrete, this
stress leads to the formation of longitudinal cracks that run parallel to the bars.
These cracks are a common and visible indicator of ongoing corrosion, signaling
the need for further investigation. Several parameters affect the level of corrosion,
including concrete cover thickness, bar diameter, concrete quality, and the ratio of
concrete cover thickness to bar diameter.
This project focuses on investigating the relationship between the width of longitudinal cracks and the underlying factors influencing bar corrosion. Specifically, it
analyzes the correlation between crack width and parameters such as concrete cover
thickness, bar diameter, and concrete quality. Establishing these relationships is crucial for improving the accuracy of corrosion assessments and enhancing the ability
to predict the remaining service life of reinforced concrete structures.
Beskrivning
Ämne/nyckelord
Reinforced concrete structures , Corrosion , Visual inspection , Concrete cover thickness , Concrete quality , Bar diameter , Longitudinal cracks