​Photo from Blommenbergsviadukten; cracking and spalling due to corrosion in a splice region raised concerns about available load-carrying capacity. By the use of an earlier developed model, Lundgren et al (2012), sufficient capacity could be shown. In this project, the model will be further developed and verified.
Photo: Jesper Antonsson, Projektengagemang

Tool for assessment and service-life evaluation of corroded bridges

Start date 01/03/2015
End date The project is closed: 30/03/2018
​Corrosion of steel reinforcement is the most common cause of deterioration in reinforced concrete bridges. Many of the existing bridges show significant corrosion damages, and the impacts of climate change are expected to increase the deterioration.
The primary focal point of the project is to establish a reliable model for the assessment and service-life evaluation of corroded reinforced bridges, and to make the model available to engineers by integrating it into a robust assessment tool.
An earlier developed model will be further extended, verified and improved by incorporating uncertainties, and the tool in form of a user-friendly program will be devised and demonstrated in a case study.
The results of the project will contribute to significant economic and environmental savings for society as we with improved knowledge can repair and replace existing structures only when necessary.
The project is carried out at the division of structural engineering, in the research group of concrete structures.
Keywords: Concrete bridges, reinforcement corrosion, probabilistic analysis, safety assessment, service-life prediction, anchorage

Project members

Project leader
Kamyab Zandi (Chalmers/CBI)

Mattias Blomfors (Chalmers/CBI)
Kamyab Zandi (Chalmers/CBI)
Karin Lundgren (Chalmers)
Oskar Larsson (LTH)
Daniel Honfi (SP)
Per Kettil (Skanska)

Mattias Blomfors

External partners at the project
​CBI Betonginstitutet
Lunds tekniska högskola
Chalmers Areas of Advance
​Built Environment

​Trafikverket 2782 kSEK
CBI A-konsortiet 687 kSEK

In-kind budget
Participating partners, in total 696 kSEK

Page manager Published: Fri 29 Jun 2018.