Searched for: department%3A%22Design%255C%252Band%255C%252BConstruction%22
(1 - 20 of 53)
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Koleva, D.A. (author), Taheri, P. (author), Tsvetkova, N. (author), Boshkov, N. (author), Van Breugel, K. (author), De Wit, J.H.W. (author), Mol, J.M.C. (author)This paper reports on the corrosion performance of composite zinc layers (~ 8µm) on a steel substrate, considering the influence of nano-aggregates and Cr(III) conversion layers, compared to control (only Zn layers) conditions. The main factors, influencing the corrosion performance of Zn in this study are: a) the effect of two concentrations of...journal article 2011
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- Hu, J. (author), Koleva, D.A. (author), Van Breugel, K. (author) journal article 2011
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Su, J.F. (author), Wang, X.Y (author), Huang, Z. (author), Zhao, Y.H. (author), Yuan, X.Y. (author)Microencapsulated phase change materials (microPCMs) have been widely applied in solid matrix as thermal-storage or temperature-controlling functional composites. The thermal conductivity of these microPCMs/matrix composites is an important property need to be considered. In this study, a series of microPCMs have been fabricated using the in...journal article 2011
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Schipper, H.R. (author)В современных архитектурных решениях широко используется криволинейность свободных форм. Именно поэтому изогнутые элементы из сборного бетона могут быть потенциальным рын- ком для производителей. В прошлом не существовало просто- го способа для производства таких компонентов. Исследования, проводимые в докторантуре Дельфтского Технического...journal article 2011
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Moonen, P. (author), Sluys, L.J. (author), Carmeliet, J. (author)A macroscopic framework to model heat transfer in materials and composites, subjected to physical degradation, is proposed. The framework employs the partition of unity concept and captures the change from conduction-dominated transfer in the initial continuum state to convection and radiation-dominated transfer in the damaged state. The...journal article 2011
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Van de Kuilen, J.W.G. (author), Dias, A.M.P.G. (author)This paper discusses the long-term mechanical behaviour of timber-to-concrete joints made with dowel-type fasteners. Despite the influence that the long-term behaviour of joints has on the mechanical behaviour of a timber–concrete structure and consequently on its design, there is still a lack of research in this area. This paper presents...journal article 2011
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Hu, J. (author), Koleva, D.A. (author), De Wit, J.H.W. (author), Kolev, H. (author), Van Breugel, K. (author)This study presents the results on the investigation of the corrosion behavior of carbon steel in model alkaline medium in the presence of very low concentration of polymeric nanoaggregates [0.0024 wt % polyethylene oxide (PEO)113-b-PS70 micelles]. The steel electrodes were investigated in chloride free and chloride-containing cement extracts....journal article 2011
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Koleva, D.A. (author), Hu, J. (author), De Wit, J.H.W. (author), Boshkov, N. (author), Radeva, T. (author), Milkova, V. (author), Van Breugel, K. (author)This work reports on the electrochemical performance of low-carbon steel electrodes in model alkaline solutions in the presence of 4.9.10-4 g/l hybrid aggregates i.e. cement extract, containing PDADMAC (poly (diallyl, dimethyl ammonium chloride) / PAA (Poly (acrylic acid)/ PDADMAC over a CaO core. The main objective was to determine if the...journal article 2010
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Koleva, D.A. (author)This work reports on the microstructural properties of reinforced mortar after chloride-induced corrosion and two regimes of cathodic prevention. Additionally, the impact of a very low concentration polymeric nano-aggregates (core-shell micelles from PEO113-b-PS218), admixed in the mortar mixture is discussed. The study reveals that a very low...journal article 2010
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Koleva, D.A. (author), Van Breugel, K. (author), Boshkov, N. (author), Mol, J.M.C. (author), De Wit, J.H.W. (author)This work reports on monitoring chloride-induced corrosion in reinforced mortar specimens, with and without addition of polymeric nano-aggregates in the mortar mixture. The investigation is a novel approach to control steel corrosion in reinforced concrete, hereby reporting the preliminary results, related to one of the main objectives: studying...journal article 2010
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Hu, J. (author), Koleva, D.A. (author), De Wit, J.H.W. (author), Petrov, P. (author), Van Breugel, K. (author)This study presents the results from a preliminary investigation on the corrosion behavior of low carbon steel in cement extract (CE) in the presence of very low concentration polymeric nanoaggregates (PEO113-b-PS70 micelles). The steel electrodes were investigated in Cl--containing CE as corrosion medium, compared to chloride-free CE as a...journal article 2010
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Koleva, D.A. (author), Van Breugel, K. (author), Mol, J.M.C. (author), De Wit, J.H.W. (author)This work presents the preliminary tests on the performance of cathodic prevention (CPre) in reinforced mortar, subjected to aggressive (10% NaCl environment). Cathodic prevention is an electrochemical technique for minimizing, actually "preventing" any eventual corrosion of the steel bars in reinforced concrete. Therefore, the main objective of...journal article 2010
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- Koleva, D.A. (author), Van Breugel, K. (author), De Wit, J.H.W. (author), Mol, A. (author) journal article 2010
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Schipper, H.R. (author), Vambersky, J.N.J.A. (author)The manufacturing of double curved precast concrete elements is still expensive, due to the high costs and limited possibilities for repetitive use of the molds or formwork. The goal of a PhD project recently initiated at TU Delft is to develop a production method that overcomes these difficulties by enabling the mold to be used many times and...journal article 2010
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Schipper, H.R. (author), Vambersky, J.N.J.A. (author)Die Herstellung von zweifach gebogenen Betonfertigteilen ist aufgrund der hohen Kosten und der begrenzten Wiederverwendbarkeit der eingesetzten Schalung oder Formen nach wie vor kostspielig. Das Ziel eines kürzlich an der Technischen Universität Delft angelaufenen PhDProjekts ist die Entwicklung eines Produktionsverfahrens ohne jene...journal article 2010
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Xiao, Y. (author), Van de Ven, M.F.C. (author), Molenaar, A.A.A. (author), Su, Z. (author), Zandvoort, F. (author)Coal tar bearing emulsions were used in the Netherlands as binder in anti-skid surfaces for runways because of their perfect adhesion and fuel resistance properties. They are however toxic and will not be allowed anymore after 2010. Therefore alternatives need to be developed. As one of the alternatives, two types of two-component epoxy modified...journal article 2010
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- Koleva, D.A. (author), Hu, J. (author), Van Breugel, K. (author), Boshkov, N. (author), Radeva, T. (author), Milkova, V. (author) journal article 2010
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- Koleva, D.A. (author), Hu, J. (author), Van Breugel, K. (author), Boshkov, N. (author) journal article 2010
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- Hu, J. (author), Koleva, D.A. (author), Van Breugel, K. (author), Petrov, P. (author) journal article 2010
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Arias-Cuevas, O. (author), Li, Z. (author), Lewis, R. (author)The adhesion (or available friction) in the wheel–rail contact is the most important parameter for the braking and traction operation of rail vehicles. Since the beginning of railway transportation, sanding from the locomotive has been a common practice to enhance the wheel–rail adhesion. In recent years, sanding from electrical multiple units ...journal article 2009
Searched for: department%3A%22Design%255C%252Band%255C%252BConstruction%22
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