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Outdoor performance of coated wooden window frames as a basis for service life prediction. KU Leuven
Performance classification of coated wooden window frames after three years outdoor weathering as a basis for service life prediction Universiteit Gent
Effect of the service life assessment approach of the environmental benefit of using self-healing concrete in marine environments Universiteit Gent
To reduce concrete’s susceptibility to cracking, full autonomous healing mechanisms are being studied today. A promising technique consists of incorporating encapsulated polyurethane-based healing agents. Upon crack occurrence, small capsules in close vicinity of the damaged area break. A polyurethane (PU) pre-polymer flows into the crack and after reaction with the surrounding moisture, the hardened PU prevents further accelerated ingress of ...
Quantification of the service life extension and environmental benefit of chloride exposed self-healing concrete Universiteit Gent
A service life based global warming potential for high-volume fly ash concrete exposed to carbonation Universiteit Gent
Durability based service life estimation for chloride exposed cracked and self-healed concrete Universiteit Gent
Chloride ingress in cracked concrete leads to rapid corrosion of embedded steel reinforcement and a decrease of the expected service life. Corrosion monitoring experiments showed that a 300 μm wide crack caused initiation of corrosion of a rebar (Ø 10 mm) with a concrete cover of 26 mm within three weeks of cyclic exposure to a 33 g/l NaCl solution. After a period of unstable corrosion activity during the first 20 weeks of exposure, corrosion ...
Global warming potential of carbonation/chloride exposed concrete with(out) consideration of the propagation period in service life assessment Universiteit Gent
When studying concrete's susceptibility to carbonation-/chloride-induced corrosion, the focus is usually on the corrosion initiation period. Service life prediction performed as such only quantifies the time to depassivation of the reinforcing steel and does not involve any damage. As a consequence, the actual service life is underestimated. In this paper, it has been evaluated whether the time between steel depassivation and unacceptable ...
Prediction of remaining fatigue life of welded joints in wind turbine support structures considering strain measurement and a joint distribution of oceanographic data Vrije Universiteit Brussel
Reassessing the remaining fatigue life of the wind turbine support structures becomes more and more crucial for operation, maintenance, and life extension when they are reaching the end of their design service life. By using measured oceanographic and strain data, each year, remaining fatigue life can be updated to adapt the operation to real loading conditions. Previous works have not put attention to address the complexity of offshore loading ...
Long-term stiffness prediction of particle filled polymers by dynamic mechanical analysis : frequency sweep versus creep method Universiteit Gent
The long-term service life of polymers can be estimated with much shorter experiments by applying the time temperature superposition principle (TTS). In this approach, data is obtained at different temperatures, usually through a stepped isothermal method (SIM) on the same sample. Dynamic mechanical analysis (DMA) instruments offer two different measurement methods to obtain SIM data: (i) static creep tests and (ii) dynamic frequency sweeps. ...