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Visser, J.H.M. (author), Siemes, A.J.M. (author)Steeds vaker wordt geëist dat betonconstructies zodanig worden ontworpen dat ze een gegarandeerde levensduur hebben. Het komt voor dat een levensduur van 100 of zelfs 200 jaar wordt geëist. Maar hoe ontwerp je een constructie met voldoende levensduur? Hoe bewijs de dan dat je aan die levensduureis voldoet? En waar moet je allemaal op letten als...book 2010
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Polder, R.B. (author), TNO Bouw en Ondergrond (author)The critical chloride content for initiation of reinforcement corrosion is an essential element in service life design and modelling of concrete structures.The critical content is laden with questions regarding its definition, experimental assessment and practical aspects. It should be addressed by a statistical approach. The paper discusses...article 2009
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Cantarini, J. (author), Hildebrandt, D. (author), König, R. (author), Klinkhamer, J.F.F. (author), Moddemeijer, K. (author), Vliegenthart, W.A. (author), Wolf, R. (author), TNO Industrie en Techniek (author)For the Wendelstein 7-X stellarator, which will allow quasicontinuous operation (τ30 min) with 10 MW of electron cyclotron radiation heating power, a conceptual design study for an IR/visible viewing system (IVVS) has been elaborated. Ten such systems, as part of the machine protection system, will be required for real time monitoring of all ten...article 2008
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Loftness, V. (author), Hakkinen, B. (author), Adan, O. (author), Nevalainen, A. (author), TNO Bouw en Ondergrond (author)Background: The elements that contribute to a healthy building are multifactorial and can be discussed from different perspectives. Objectives: We present three viewpoints of designing a healthy building: the importance of sustainable development, the role of occupants for ensuring indoor air quality, and ongoing developments related to indoor...article 2007
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TNO Bouw en Ondergrond (author), van der Meulen, M.J. (author), Maljers, D. (author), van Gessel, S.F. (author), Gruijters, S.H.L.L. (author)Clay is a common lithology in the Dutch shallow subsurface. It is used in earth constructions such as dikes, and as raw material for the fabrication of bricks, roof tiles etc. We present a new national assessment of Dutch clay resources, as part of a project that provides mineral-occurrence information for land-use planning purposes. The...article 2007
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TNO Bouw en Ondergrond (author), de Richemont, S.A.J. (author), Veer, F.A. (author)This article presents the research to the bonded joints of the All Transparent Pavilion (ATP), an experimental project built in November 2004 at the faculty of Architecture in Delft. The pavilion is designed to use structural glass elements, bonded with Delo Photobond GB 368, a photo-catalytic transparent adhesive. To avoid bonding on-site and...article 2007
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Nijland, T.G. (author), Dubelaar, C.W. (author), Tolboom, H.J. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author)Most of the Netherlands a Quaternary delta, local supplies of natural stone suitable for building are rare. These include: Quaternary bog iron ores used in early medieval times (until c. 1200); erratics, deposited in boulder clay during the Saalian ice age in the northern Netherlands and gravel from the river Meuse; Miocene lithified siliceous...conference paper 2006
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- Nijland, T.G. (author), Dubelaar, C.W. (author), Tolboom, H.J. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author) conference paper 2006
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Koenders, E.A.B. (author), Schlangen, E. (author), Leegwater, G. (author), TNO Bouw en Ondergrond (author)The start of the chemical reaction between cement and water is the moment that concrete starts to develop its properties. More precisely, it is the paste that starts to generate a loadbearing microstructure that exhibits a certain number of mechanical properties. One of the properties generated during hardening is the so-called hardening...conference paper 2006
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Schlangen, E. (author), Leegwater, G. (author), Koenders, E.A.B. (author), TNO Bouw en Ondergrond (author)In order to be able to improve concrete modelling based on its constituent, more knowledge is needed about the material behaviour of these constituents. In this research the focus is on the behaviour of hardening concrete, therefore the properties of hardening cement are of most relevance. Information about cement paste behaviour can be used as...conference paper 2006
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de Jong, J.D. (author), TNO Bouw en Ondergrond (author)De keuze voor de houtsoort van kozijnen wordt vaker bepaald door gewoonte dan door een bewuste afweging. Jammer, vindt FSC Nederland, want het assortiment van geschikte houtsoorten is enorm. De HoutScout adviseert aannemers welke houtsoort zij in een bepaald project het beste kunnen toepassenarticle 2006
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van den Beukel, A. (author)Building Pathology can be described as: the systematic treatment of building deficiencies, its causes, its consequences and its remedies. The main goal is: the avoidance of building defects. This is well in accordance with one of the aims of Quality Assurance: the avoidance of non-conformity.bookPart 2006
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- TNO Bouw en Ondergrond (author), Lubelli, B.A. (author) doctoral thesis 2006
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Lubelli, B. (author), van Hees, R.P.J. (author), Groot, C.J.W.P. (author), TNO Bouw en Ondergrond (author)The present paper reports the results of a series of investigalions carried out in a church located in the region of Zeeland, in the south-west part of the Netherlands. Because of the sea flooding occurred in 1953, this building shows a serious salt damage, mainly affecting the restoration plaster applied on the interior walls. This plaster,...conference paper 2005
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- van Hees, R.P.J. (author), Dubelaar, C.W. (author), Nijland, T.G. (author), TNO Bouw en Ondergrond (author) conference paper 2005
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van Hees, R.P.J. (author), Nijland, T.G. (author), Larbi, J.A. (author), Wijffels, T.J. (author), Brocken, H.J.P. (author), TNO Bouw en Ondergrond (author)The characterisation of two ancient mortars in historic bridges, suffering damage due to thaumasite and other swelling compounds is described. Characterisation was part of the analysis of damage occurring to the brick masonry structure. Expansive reactions were found to have taken place, being the cause of the damage to the masonry. In both...conference paper 2005
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- van Hunen, M. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author) article 2005
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Lubelli, B. (author), van Hees, R.P.J. (author), Groot, C.J.W.P. (author), TNO Bouw en Ondergrond (author)A large number of restoration plasters, especially developed for salt loaded substrates, have been introduced on the market in the last decades. The performance of these plasters in the field is not always satisfactory. The reasons of the failures may be found in the severity of the exposure conditions (salt load, moisture supply and...conference paper 2005
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Petkovic, J. (author), Pel, L. (author), Huinink, H.P. (author), Kopinga, K. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author)The durability and performance of specially developed restoration plasters or renders, are not always as good as expected. Salt crystallization is one of the causes of the observed degradation processes. To understand these processes in more detail, we investigated whether transport in the plasters depends on the masonry material. The transport...article 2005
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van Hees, R.P.J. (author), Sanders, M.M. (author), TNO Bouw en Ondergrond (author)St. Barbara's Church in Culemborg in the Netherlands has a history of moisture and salt damage to the plaster. In the past several restorations were performed, without a durable results. Finally, in 1997 test panels were applied in oreder to bas the choice for new plastering on in practice proved durability. TNO Building and Construction...conference paper 2005