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Polder, R. (author), Peelen, W. (author)
This paper presents an overview of 30 years' experience with cathodic protection of steel in concrete in The Netherlands. Principles and practical aspects of CP and its design and installation are presented. Three phases have passed from the late 1980s until present: pioneering, development and maturity. In the first period CP was mainly applied...
conference paper 2018
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Polder, R.B. (author), van Put, M. (author), Peelen, W.H.A. (author)
Testing for the chloride threshold (also called critical chloride content) for corrosion initiation of steel in concrete has been found difficult and, at best, time consuming. Nevertheless, the chloride threshold is an important parameter in service life design of new structures and for evaluation of the remaining service life of existing...
conference paper 2017
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Luiten, G.T. (author), Peelen, W.H.A. (author), Vega, E. (author)
Het aantal projecten in de civiele infrastructuur waarin het gedrag van constructies gemonitord wordt, groeit langzaam maar zeker. Dit zijn echter nog vaak unieke projecten, gebaseerd op het enthousiasme van pioniers in hun organisatie. Het is voor de meeste organisaties nog onduidelijk of monitoren voldoende toegevoegde waarde heeft en hoe ze...
article 2017
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Peelen, W.H.A. (author), Vervuurt, A.H.J.M. (author)
Modular expansion joints constitute a substantial part of direct and indirect costs of bridge maintenance. Joint condition assessments can be improved to predict or detect damages earlier. In this way the probability for consequential damages such as emergency repair and a shortened lifespan is reduced. Maintenance can be planned well in advance...
conference paper 2017
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Luiten, G.T. (author), Peelen, W.H.A. (author), Drieman, R. (author)
conference paper 2016
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Polder, R.B. (author), Pan, Y. (author), Courage, W.M.G. (author), Peelen, W.H.A. (author)
Maintenance costs of reinforced concrete infrastructure (bridges, tunnels, harbours, parking
article 2016
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Luiten, G.T. (author), Peelen, W.H.A. (author), Drieman, R. (author)
The number of monitoring pilots in Dutch civil infrastructure with sensing systems is increasing only slowly over the last decade. To identify and help understand barriers for wider implementation of moni-toring systems, SBRCURnet-committee 1992 analysed 13 monitoring pilots. The committee consisted of 16 Dutch infrastructure owners,...
conference paper 2016
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Polder, R.B. (author), Angst, U.M. (author), Pacheco, J. (author), Peelen, W.H.A. (author)
Where exposed to an aggressive environment, concrete structures will develop reinforcement corrosion at some point in their life. Chloride ions from de-icing salt or sea water induce pitting corrosion. Local cross section reduction may occur relatively quickly and expansion due to corrosion products precipitating may crack and spall concrete...
conference paper 2016
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Peelen, W.H.A. (author), Mookhoek, S.D. (author)
Omdat Asset Management steeds belangrijker wordt, heeft TNO een Road Map opgesteld waarin staat welke meet-, model- wn simulatietechnieken (MMS) in de toekomst voor goed Asset Management ontwikkeld moeten worden. Het doel is te komen tot hoogwaardige technologie voor de ondersteuning van beheer en onderhoudsbeslissingen van vitale delen van de...
article 2013
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Polder, R.B. (author), Peelen, W.H.A. (author), Leegwater, G. (author), TNO Bouw en Ondergrond (author)
Since about 1980 Corrosion Monitoring Systems have been used in many concrete structures in aggressive environmentworldwide. While these systemswork properly in aboveground environment, some questions have arisen for submerged conditions, e.g. the outer sides of tunnels, piers in seawater or foundations in wet soil. One question concerns macro...
bookPart 2008
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Polder, R.B. (author), Peelen, W.H.A. (author), TNO Bouw en Ondergrond (author)
Concrete structures under aggressive load may suffer chloride induced reinforcement corrosion, in particular with increasing age. Due to high monetary and societal cost (non-availability), replacement is often undesirable. Durable repair is necessary, e.g. by Cathodic Protection (CP). CP involves an electrical current through the concrete to the...
bookPart 2008
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Peelen, W.H.A. (author), TNO Bouw en Ondergrond (author)
Invoering van AC tractie in Nederland en het bundelen van leidingen in leidingenstraten en -corridors, kan consequenties hebben op de AC en DC beïnvloeding van ondergrondse pijpleidingen, en naar mee op hun duurzaamheid. DC beïnvloeding heeft plaats, omdat het bestaande spoor of andere DC bronnen, lekstromen naar de bodem vertonen. Deze stromen...
conference paper 2006
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Peelen, W.H.A. (author), TNO Bouw en Ondergrond (author)
In prefab segmenten van de Groene Hart tunnel zijn sensoren ingebouwd voor het monitoren van aspecten van de levensduur. Corrosie-initiatie en -snelheid en elektrische
conference paper 2006
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Schuten, G. (author), Leggedoor, J. (author), Polder, R.B. (author), Peelen, W.H.A. (author), TNO Bouw (author)
bookPart 2006
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Polder, R.B. (author), Peelen, W.H.A. (author), Leggedoor, J. (author), Schuten, G. (author)
bookPart 2006
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Polder, R.B. (author), Krom, A.H.M. (author), Peelen, W.H.A. (author), Wessels, J.F.M. (author), TNO Bouw en Ondergrond (author)
article 2006
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Peelen, W.H.A. (author), Krom, A.H.M. (author), Polder, R.B. (author), TNO Bouw en Ondergrond (author)
Steel is a cost-effective and durable building material. Corrosion is one of the major degradation mechanisms of steel structures, also for underground structures like sheet pile walls. Traction currents leaking into the ground (called stray currents here) and interfering with the structure can cause increased corrosion rates, and wall thickness...
conference paper 2006
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Peelen, W.H.A. (author), Visser, J.H.M. (author), Polder, R.B. (author), TNO Bouw en Ondergrond (author)
In prefab segmenten van de Groene Harttunnel zijn sensoren ingebouwd voor het monitoren van aspecten van de levensduur. Corrosie-indicatie en elektrische weerstand worden gemeten. Ondersteund doorr laboratoriumproeven worden het vochtprofiel aan de binnen- en buitenkant van de tunnel daaruit afgeleid en het corrosiemechanisme (onder meer...
article 2006
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Shamalta, M. (author), Breunese, A.J. (author), Peelen, W.H.A. (author), Fellinger, J.H.H. (author), TNO Bouw en Ondergrond (author)
In this paper, the phenomenon of spalling of concrete in fire has been studied using a numerical model. Spalling is the violent or non-violent breaking off of layers or pieces of concrete when it is exposed to high temperatures as experienced in fires. The types and mechanisms of spalling have been explained. A numerical model has been developed...
conference paper 2005
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Peelen, W.H.A. (author), Polder, R.B. (author), TNO Bouw (author)
Assessment of the durability of prestressed concrete sheet piles under the interference of CP gas pipeline system current, established that due to their low magnitude, these currents do not compromise the required 100-year service life of the structures. The sophisticated numerical modelling tools being developed, are important in assessing...
article 2004
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