A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modelling chloride ingress in marine environment concrete
Reinforced concrete corrosion due to chloride ingress is the main deterioration process in concrete structures located in marine environment. An experimental programme has been carried out, consisting on drilling concrete cores on seven Spanish wharves and obtaining the chloride penetration profiles; the cores were drilled in concrete exposed in tidal or submerged zone. These wharves were made of different quality concretes and have been exposed to marine environment between 2 and 31 years. A chloride diffusion rate model (for OPC and blended cement concretes) has been developed from this experimental programme and from data obtained from the State-of-the-Art review (159 individual data, 17 references; w/c ratio between 0.30 and 0.75); the models have been used to set up the concrete quality required in submerged or tidal zone marine environments. Also the efficiency factors of fly ashes and silica fume (in terms of chloride permeability) have been calculated.
Modelling chloride ingress in marine environment concrete
Reinforced concrete corrosion due to chloride ingress is the main deterioration process in concrete structures located in marine environment. An experimental programme has been carried out, consisting on drilling concrete cores on seven Spanish wharves and obtaining the chloride penetration profiles; the cores were drilled in concrete exposed in tidal or submerged zone. These wharves were made of different quality concretes and have been exposed to marine environment between 2 and 31 years. A chloride diffusion rate model (for OPC and blended cement concretes) has been developed from this experimental programme and from data obtained from the State-of-the-Art review (159 individual data, 17 references; w/c ratio between 0.30 and 0.75); the models have been used to set up the concrete quality required in submerged or tidal zone marine environments. Also the efficiency factors of fly ashes and silica fume (in terms of chloride permeability) have been calculated.
Modelling chloride ingress in marine environment concrete
Modellierung des Eindringens von Chloriden in Beton für Meeresumgebungen
Bermudez, M.A. (author) / Alaejos, M.P. (author)
2009
6 Seiten, 11 Bilder, 7 Quellen
Conference paper
English
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