Click here to see the NCR 54 – 1/2016 (june 2016)
Contents:
Miguel Ferreira, M.Sc, Ph.D.
VTT Technical Research Institute of Finland Ltd.
Edgar Bohner, M.Sc, Dr. -Ing.
VTT Technical Research Institute of Finland Ltd.
Olli Saarela, M.Sc, Ph.D.
VTT Technical Research Institute of Finland Ltd.
“Designing concrete durability by coupling limit states of corrosion initiation and corrosion induced cracking of concrete cover”
The successful durability design of reinforced concrete structures requires models capable of reliably describing both mechanisms of damage and its progression over time. In a chloride laden environment, most models used typically disregard the actual damage, i.e. the corrosion of the reinforcing steel. Common service life design practice only considers the end of the initiation phase of the degradation process as a critical limit state. In this paper, a holistic approach is presented that couples models used for determining the time to depassivation and the time to cover cracking as a result of reinforcement corrosion in a single limit state calculation.
Key words: Corrosion, cracking, service life, deterioration, modelling, concrete cover, chloride ingress, serviceability limit state
Sorry, comments are closed for this post.