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Reasons for failure of flue gas ducts and stacks of fibre-reinforced plastics

Glass fiber reinforced plastics (GRP) is an often-used material to handle the corrosive environments that flue gases in an incinerator constitute of. However, there have been several costly delamination damages in GRP used in flue gas that have been unexpected and difficult to explain. This project will develop a test method to combat this.

In order to design laminates smarter as to avoid these type of failures, it is essential to better understand the failure mechanisms. Previous projects have given us some clues, but it has proven to be more difficult than anticipated to simulate the delaminations in lab experiments.

The purpose of this project is to develop a test method that is more consistent with the actual operations and to use laminates that are more similar to real constructions. This test method together with samples taken from components used in real service will then be used to evaluate the influence of moisture, temperature, flue gas and laminate construction on the service life of the structure.


Project name

Flue gas ducts and stacks of plastics



RISE role in project


Project start


3 years

Total budget

1 200 000 SEK




Energiforsk, Energimyndigheten

Love Pallon

Contact person

Love Pallon


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