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Nedeljkovic, M. (author), Šavija, B. (author), Zuo, Y. (author), Lukovic, M. (author), Ye, G. (author)
The aim of this paper was to investigate the effect of natural carbonation on the pore structure, and elastic modulus (E-m) of alkali-activated fly ash (FA) and ground granulated blast furnace slag (GBFS) pastes after one year of exposure in the natural laboratory conditions. The chemical changes due to carbonation were examined by X-ray...
article 2018
document
van Leeuwen, S. (author), Kuindersma, P. (author), Egter van Wissekerke, N. (author), Bastein, T. (author), de Vos, S. (author), Donkervoort, R. (author), Keijzer, E. (author), Verstraeten, J. (author)
De vraag naar grondstoffen voor de bouwopgaaf, de grote hoeveelheid (sloop)afval uit de bouw en de impact van de bouwsector op broeikasgasemissies vragen om een efficiënte en duurzame manier omgang met bouwmaterialen. Het Rijksbrede programma circulaire economie was voor TNO aanleiding om in deze publicatie te laten zien hoe wij aankijken tegen...
other 2018
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Pahlavan, P.L. (author), Zhang, F. (author), Blacquière, G. (author), Yang, Y. (author), Hordijk, D. (author)
Interaction of ultrasonic waves with partially-closed surface-breaking cracks in concrete structures has been studied. Measurements have been conducted on a reinforced concrete beam containing various mechanical-load-induced cracks and compared with the baseline measurements at those locations. Influence of crack width, incident angle of waves...
article 2018
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van Hees, R.P.J. (author), Veiga, R. (author), Slizkova, Z. (author)
The paper addresses the consolidation of
article 2017
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Rózsás, Á. (author), Mogyorósi, Z. (author)
In structural reliability the dependence structure between random variables is almost exclusively modeled by Gauss (normal or Gaussian) copula; however, this implicit assumption is typically not corroborated. This paper is focusing on time-variant reliability problems with continuous stochastic processes, which are collection of dependent random...
article 2017
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Souza, L.M.S. (author), Polder, R.B. (author), Çopuroğlu, O. (author)
Alkali–silica reaction (ASR) affects numerous concrete structures worldwide. However, the intervention options for ASR in existing structures are limited. Lithium is proposed to suppress expansion. In this paper, an investigation on two-chamber lithium migration as treatment against ASR is presented. First, the influence of different levels of...
article 2017
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Nijland, T.G. (author), van Hees, R.P.J. (author)
Volcanic tuffstone from the Eifel region, Germany, is one of the most important kinds of natural stone used in the Netherlands. These tuffs have, albeit with several hiatuses, been used since Roman times. At several places, original Medieval stones are still present. That does not imply that the stone is completely resistant to weathering: ' The...
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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Bronkhorst, A.J. (author), Geurts, C.P.W. (author), van Bentum, C.A. (author), van der Knaap, L.P.M. (author), Pertermann, I. (author)
An atmospheric boundary layer wind tunnel study was performed to determine the overall horizontal wind load on multi-span duo-pitch greenhouses. The results of this study are intended for the stability design of inflexible Gladding system greenhouses (designated as Class A in EN 13031-1) with roof pitch angles of 23-24' and ridge heights of 7.5...
article 2017
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Nijland, T.G. (author)
bookPart 2017
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Polder, R.B. (author), Geiker, M.R. (author)
Many repairs of chloride induced corrosion in practice fail within 10 years due to chloride remaining after cleaning the steel, causing corrosion re-activation. An improvement of conventional repair was invented, Electro Active Repair, that electrochemically removes chlorides. After concrete removal, a temporary electrolyte and anode are...
conference paper 2017
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Meacham, B.J. (author), van Straalen, IJ.J. (author)
Building regulatory systems have been evolving in recent decades, first with a transition to a functional or performance basis, and more recently with the introduction of new societal objectives, including those related to sustainability and climate change resiliency. Various policy and technical challenges have been identified with this...
article 2017
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Geurts, C.P.W. (author)
De toepassing van zonne-energiesystemen op hellende daken neemt een grote vlucht. Niet alleen nieuwe daken worden van zonnepanelen en zonneboilers voorzien, ook op reeds bestaande daken worden zonne-energiesystemen aangebracht. De bevestiging van deze systemen moet zodanig zijn ontworpen dat deze de belastingen als gevolg van het eigen gewicht,...
article 2016
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Walraven, J. (author), Bigaj-van Vliet, A.J. (author)
Om richting te geven aan de ontwikkeling van nieuwe internationale normen, zoals de Eurocodes,
article 2016
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van Schaijk, S. (author), van Berlo, L.A.H.M. (author)
The research field of process mining is relatively new and not been applied often in the Architecture, Engineering, Construction and Facility Management industry (AECFM). Process mining uses databases of existing IT systems to gain major insights in processes. Currently the AECFM industry increasingly adapts IT systems within all phases of the...
conference paper 2016
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de Rooij, M.R. (author)
Monumenten verdienen goed onderhoud. Een monument dat er prachtig bij staat, daar zij we trots op. Een monument waar de vellen vanaf vallen, daar schamen we ons voor. Daar moet iets aan gebeuren! En dan begint het: wanneer was de laatste keer ? Wat is er toen precies gedaan ? Is deze plek nu erger geworden of denk ik dat alleen maar ?
conference paper 2016
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Darlow, M. (author), Paulissen, J.H. (author)
As part of an extensive renovation program, Arup Netherlands delivered engineering services for the strengthening and renovation of 8 large steel bridges in the Dutch highway network. Strengthening of the riveted splice connections at the ends of the hangers of a steel arch bridge on the Dutch A2 motorway represented a significant challenge to...
conference paper 2016
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Kleijn van Willigen, G.K. (author), van Meerveld, H. (author)
The reliability and availability of the Dutch storm surge barriers are calculated by probabilistic risk assessment and various underlying risk analysis methods. These calculations, however, focus on the numerical probability of the storm surge barrier functioning adequately, and the implementation of the many constraints from the risk analysis...
conference paper 2016
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Leegwater, G.A. (author)
Asphalt concrete has the advantageous ability to heal autonomously, however the mechanisms behind this are not fully understood. To increase insight in the healing mecha-nism, the healing model used in polymer science is adopted. It interprets healing as the sum of wetting and intrinsic healing. The presented work introduces a new test set-up,...
conference paper 2016
document
van Berlo, L.A. (author), Papadonikolaki, E. (author)
conference paper 2016
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