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Grünewald, S. (author), Schipper, H.R. (author), Hordijk, D.A. (author)The number of applications with thin flat, curved or double-curved elements often produced as architectural elements for façades is rising fast. If the repetition factor of the elements is limited, which is often the case in free-form architecture, the high number of unique moulds makes this type of architecture economically less viable....conference paper 2016
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Pan, Z. (author), Schlangen, E. (author)In self-healing concrete, healing agents (including the bacteria and nutrients for the bacteria) are often sealed in capsules to survive the mixing of concrete. When the crack occurs, these capsules can be damaged, the healing agents can be released and the chemical actions can be activated. This research mainly focuses on the probability...conference paper 2015
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Nijsse, R. (author)This paper is new developments in structural engineering related especially to the use of the material glass. After a philosophical discussion about why glass is the material for the Future, all glass elements and related techniques are presented from which an all glass building can be assembled. To conclude this paper ,all glass structures like...conference paper 2015
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- Mors, R.M. (author), Jonkers, H.M. (author) conference paper 2015
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Latifi, M. (author), Van der Meer, F.P. (author), Sluys, L.J. (author)This paper presents a new damage model for simulating fatigue-driven delamination in composite laminates. This model is developed based on the Thick Level Set approach (TLS) and provides a favorable link between damage mechanics and fracture mechanics through the non-local evaluation of the energy release rate. Previously, this approach has been...conference paper 2015
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Liu, X. (author), Markine, V.L. (author), Shevtsov, I. (author)This paper presented the performance study of two frogs in a double crossover in the railway network in the Netherlands. These frogs are located on the same track line. Each train passes through Frog 1 in the facing direction and Frog 2 in the trailing direction. Both frogs are monitored with ESAH-M crossing dynamic behaviour measurement tool...conference paper 2015
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Liu, X. (author), Markine, V.L. (author), Shevtsov, I. (author), Dollevoet, R.P.B.J. (author)The continuous increasing demand of public transportation capacity requires the railway network operating in tight schedule. The high transporting volumes not only aggravate the degradation of railway infrastructure but also shorten the time for maintenance. Well-arranged infrastructure maintenance contributes to the budget reduction and...conference paper 2015
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Van der Vurst, F. (author), Grunewald, S. (author), De Schutter, G. (author)Over time, several mix design metliods liave been developed to obtain a selfcompacting concrete (SCC) with suitable fresh and hardened concrete properties. The very fluid concrete with no need for external compaction is achieved by using a higher powder content and the use of chemical admixtures. Segregation and bleeding are prevented by either...conference paper 2015
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Xin, L. (author), Markine, V.L. (author), Shevtsov, I. (author)The procedure for analyzing turnout crossing performance is developed in this paper. The experimental and numerical analysis are both conducted to evaluate the dynamic behavior of the crossing and to further improve the crossing performance. Geometry and acceleration measurements are performed on common single turnouts in the Dutch railway...conference paper 2015
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Keijdener, C. (author), Metrikine, A. (author)In the original problem for which this model was developed, onedimensional flexible objects interact through a non-linear contact model. Due to the non-linear nature of the contact model, a numerical time-domain approach was adopted. One of the goals was to see if the coupling between axial and transverse deformations had an influence on the...conference paper 2015
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Binti Md Yunus, B. (author), Schlangen, E. (author), Jonkers, H.M. (author)An experiment was carried out in this study to investigate the effect of compressive load on chloride penetration in self-healing concrete containing bacterial-based healing agent. Bacteria-based healing agent with the fraction of 2 mm – 4 mm of particles sizes were used in this contribution. ESEM was applied to study samples which were taken by...conference paper 2015
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Van der Vurst, F. (author), Grunewald, S. (author), Feys, D. (author), De Schutter, G. (author)In order to avoid durability problems caused by an inadequate consolidation of concrete, self-compacting concrete (SCC) has been developed. The mix design of SCC aims at balancing a minimum flowability allowing air bubbles to escape and a maximum flowability in order to avoid segregation. Because of the higher demands on mix design and...conference paper 2015
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Tziviloglou, E. (author), Wiktor, V.A.C. (author), Jonkers, H.M. (author), Schlangen, E. (author)The innovative technology of self-healing concrete allows the material to repair the open micro-cracks that can endanger the structure’s durability, due to ingress of aggressive liquids. Various concepts of self-healing concrete use encapsulation techniques, in order to immobilize and protect the healing agent during mixing and setting. In this...conference paper 2015
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Arbi, K.A. (author), Nedeljkovic, M. (author), Zuo, Y. (author), Grunewald, S. (author), Keulen, A. (author), Ye, G. (author)This paper presents an investigation on workability and strength of geopolymer concrete made of fly ash (FA), blast furnace slag (BFS) and a multicompound activator of Na2SiO3 and NaOH solutions. The FA/BFS ratios were 100:0, 70:30, 60:40, 50:50, 40:60, 30:70 and 0:100. The workability of geopolymer concretes was performed by using slump test...conference paper 2015
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Koonath Surendran, S. (author), Rolvink, A. (author), Coenders, J.L. (author), Welleman, J.W. (author), Den Hollander, J.P. (author), Hoekstra Bonnema, B. (author)About 40-50% of global raw materials are currently used in the building industry in the assembly/construction phase and in the use phase of the building and are responsible for 40-45% of total worldwide anthropogenic carbon dioxide emissions (Huovila [5]). These problems have led to the development of legislative policies, regulations and...conference paper 2015
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Green, D. (author), Hodkiewicz, M. (author), Masschelein, S. (author), Schoenmaker, R. (author), Muruvan, S. (author)Setting targets is a common way for organisations to establish performance expectations. However the validity of targets is challenged when performance is influenced by factors beyond the control of the manager. This project examines the issue of target setting for a single asset performance measure across different geographical areas. The...conference paper 2015
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Steenbergen, M.J.M.M. (author), De Jong, E. (author), Zoeteman, A. (author)During train operation, geometrical irregularities develop in soil-supported ballasted railway tracks as a function of born tonnage. This form of degradation is combatted by periodic maintenance in the form of tamping by specially equipped trains in order to guarantee predefined levels of structural performance. The growth of irregular...conference paper 2015
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Stroeven, P. (author)Path length measuring is a relevant engineering problem. Leonardo Da Vinci designed for the military appropriate equipment, the podometer, to do so. Modern equipment such as step meters and map meters are quite similar to Da Vinci?s design, despite geometrical statistical - stereological - methods based on theorems of Cauchy and Buffon that were...conference paper 2015
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Le, N.L.B. (author), Stroeven, P. (author), Stroeven, M. (author), Sluys, L.J. (author)Details of a complete methodology for porosimetry of virtual concrete have been described in a series of publications. This paper shortly sketches the main characteristics, whereupon it is indicated how a pore network model is designed based on data extracted from the virtual cement paste. This involves smoothing the main trunks as the main pore...conference paper 2015
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Li, K. (author), Stroeven, P. (author), Stroeven, M. (author), Sluys, L.J. (author)Permeability of virtual cement seems to exceed experimental data by several orders of magnitude. The differences may actually not be that dramatic, since experimental samples are in practice not always fully saturated as generally assumed. This paper demonstrates that this has enormous effects on permeability. A numerical study is conducted on...conference paper 2015