Short-term benefits of Cathodic Protection of steel in concrete

Cathodic Protection (CP) of steel in concrete has been used over the past decades in order to increase the remaining service life of concrete infrastructure. CP involves the application of an electrical current to the corroding reinforcing bars, thus stopping and preventing further corrosion. The application of current on the reinforcing steel...

Performance and working life of cathodic protection systems for concrete structures

Corrosion of reinforcing steel in concrete structures causes concrete cracking and steel diameter reduction, eventually resulting in loss of safety. Conventional repair means heavy, labour intensive and costly work and the required quality level is under economic pressure. Consequently, conventional repair is short lived in many cases. An...

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Levenslang duurzaam, maar niet vanzelf

Duurzaamheid van beton is een onderwerp dat veel belangstelling trekt: publicaties, studiedagen, discussies. Het gaat om definities, ontwerpfilosofie, materiaaleigenschappen, technische invulling, praktijkervaring, maatschappelijke ontwikkelingen, te stellen doelen en mogelijke oplossingen. Elders in dit nummer van Cement wordt verslag gedaan...

From concrete repair to concrete conservation: How to preserve the heritage values of historic concrete

The conservation of historic concrete is an increasing task, challenging both concrete repair specialists and conservation specialists. In practice, too often repair strategies are followed where conservation strategies would have been necessary. The application of repair techniques poses two threats towards the historic concrete: using...