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de Vries, J. (author), Polder, R.B. (author), Borsje, H. (author), TNO Bouw (author)
De Bouwdienst Rijkswaterstaat heeft onlangs het eindrapport gepresenteerd van een onderzoek naar het hydrofoberen van beton. Nagegaan is welk effect hydrofoberen heeft op chioride-indringing, corrosie van de wapening en vorstbestendig held. Het door TNO-Bouw verrichte onderzoek heeft tevens geleid tot het opstellen van prestatie-eisen en een...
article 1996
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Nijland, T.G. (author), van Hees, R.P.J. (author), TNO Bouw en Ondergrond (author)
conference paper 2007
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Nijland, T.G. (author), TNO Bouw en Ondergrond (author)
bookPart 2007
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Valcke, S.L.A. (author), de Bresser, J.H.P. (author), Pennock, G.M. (author), Drury, M.R. (author)
Recrystallized grains are potentially useful as indicators of palaeostress in naturally deformed rocks, providing that well-calibrated relationships (palaeopiezometers) exist between the recrystallized grain size and stress. Rocks can exhibit microstructures that are heterogeneous, that is, containing recrystallized as well as deformed grains,...
article 2014
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Nijland, T.G. (author), Dubelaar, C.W. (author)
article 2014
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van Put, M.A. (author), de Jong, J.D. (author)
Bij houten weg- en water bouwconstructies blijft er vaak water staan tussen aansluitingen van constructiedelen. Het vochtgehalte van het hout stijgt, met versnelde materiaaldegradatie tot gevolg. De ontwateringsplaat, een innovatie van TNO, gaat houtrot op verbindingspunten tegen
article 2015
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Pruiksma, J.P. (author), Breunese, J.N. (author), van Thienen-Visser, K. (author), de Waal, J.A. (author)
This paper presents a new formulation of the Rate Type Compaction Model (RTCM) for sandstone based on the isotach concept. The RTCM was originally developed to explain the loading rate dependent compaction behaviour observed in laboratory test on unconsolidated and consolidated sandstone samples and the delayed subsidence behaviour above...
article 2015
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Faiyas, A.P.A. (author), Erich, S.J.F. (author), van Soestbergen, M. (author), Huinink, H.P. (author), Adan, O.C.G. (author), Nijland, T.G. (author)
This article presents both an experimental as well as a theoretical study on the effect of MethylHy droxyEthylCellulose (MHEC) on drying in porous materials using Nuclear Magnetic Resonance Imaging (NMR). MHEC, a water soluble polymer, is normally added to glue mortars as a water retention agent in order to improve the drying by increasing...
article 2015
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Donkers, P.A.J. (author), Beckert, S. (author), Pel, L. (author), Stallmach, F. (author), Steiger, M. (author), Adan, O.C.G. (author)
The water phases in a MgSO4·7H2O crystal during heating were studied with the help of NMR. The thermogravimetric analysis (TGA) data showed that the heating rate has a strong effect on the dehydration process. NMR experiments showed that pore water, i.e., an aqueous solution of MgSO4, was produced during dehydration. Additional NMR measurements...
article 2015
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Nijland, T.G. (author), Dubelaar, C.W. (author)
article 2015
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Nijland, T.G. (author), Dubelaar, C.W. (author)
conference paper 2015
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Visser, J.H.M. (author)
On January 1st 2012, the European project SUS-CON has been started: “SUStainable, innovative and energy efficient CONcrete, based on the integration of all waste materials” (grant agreement no: 285463). The SUS-CON project aims at developing new technology routes to integrate waste materials in the production cycle of concrete. It should result...
report 2015
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Polder, R.B. (author), Geiker, M.R. (author)
Chloride induced reinforcement corrosion is increasing due to aging of concrete infra structure. Conventional repairs have poor durability and many fail after less than 10 years. For conven tional repair chloride contaminated concrete is removed, steel is cleaned and new concrete is applied. Leaving chiorides, eg. in pits, corrosion may re...
conference paper 2015
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Granneman, S. (author), Lubelli, B.A. (author), Hees, R.P.J. (author), Shahidzadeh, N. (author)
conference paper 2015
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van Hees, R.P.J. (author)
public lecture 2015
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Beushausen, H. (author), Alexander, M.G. (author), Basheer, M. (author), Baroghel-Bouny, V. (author), D'Andréa, R. (author), Gonçalves, A. (author), Gulikers, J. (author), Jacobs, F. (author), Khrapko, M. (author), Monteiro, A.V. (author), Nanukuttan, S.V. (author), Otieno, M. (author), Polder, R. (author), Torrent, R. (author)
bookPart 2015
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Lubelli, B.A. (author), Nijland, T.G. (author)
De Oude Kerk in Delft (fig. 112) gaat terug tot 1246 en was oorspronkelijk gebouwd in vulkanisch tufsteen uit de Eifel. Later zijn twee zijbeuken en koor toegevoegd. De westelijke toren werd gebouwd tussen 1325 en 1350. In de l4 eeuw werden de zijbeuken verhoogd tot dezelfde hoogte als het schip, dat zelf in de eerste helft van de 15’ eeuw...
conference paper 2015
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Borsoi, G. (author), van Hees, R.P.J. (author), Lubelli, B.A. (author), Veiga, R. (author), Santos Silva, A. (author)
The development of nanomaterials is growing exponentially in the last decade. New discoveries and their applications have taken place in different fields, such as electronics, chemistry, biology and physics. Some innovative nanoproducts have become available also for the conservation of cultural heritage (e.g. nano-Ca(OH)2, nano-SiO2, nano-TiO2,...
conference paper 2015
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Faiyas, A.P.A. (author), Erich, S.J.F. (author), Nijland, T.G. (author), Hunnink, H.P. (author), Adan, O.C.G. (author)
Cement based mortars are widely used as adhesive for tiles in building and construction. They have a limited timespan during which a tile can be placed effectively in order to develop sufficient bond strength. This timespan, usually called ’open time’, is controlled, amongst others, by adding water soluble polymers such as methyl cellulose or...
conference paper 2015
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Souza, L.M.S. (author), Copuroglu, O. (author), Polder, R.B. (author)
Alkali-Silica Reaction (ASR) is a durability problem that affects numerous concrete structures woridwide. As the reaction progresses. it might lead to deleterious expansion and cracking. The addition of lithium into fresh concrete is already acknowledged as a preventive method. In existing structures, however, lithium would need to be driven...
conference paper 2015
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