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Palin, D. (author), Thijssen, A. (author), Wiktor, V. (author), Jonkers, H.M. (author), Schlangen, H.E.J.G. (author)Ordinary Portland cement (OPC) mortar specimens submerged in sea-water were analysed through environmental scanning electron microscopy (ESEM) in back scattered electron (BSE) mode and nano-scratching. Results from both sets of analysis show the presence of distinct phases associated with aragonite, brucite and cement paste. Phases associated...conference paper 2015
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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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- Schlangen, H.E.J.G. (author), Garica, A. (author), Van de Ven, M.F.C. (author), Van Bochove, G. (author), Van Montfort, J. (author), Liu, Q. (author) conference paper 2011
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Su, J.F. (author), Qiu, J. (author), Schlangen, H.E.J.G. (author)Preservation and renovation bitumen of pavement is a big problem for the whole world. Traditionally, application rejuvenators is the only one method that can restore the original properties of the pavements. However, some puzzles still restrict its successful usage. Microencapsulation is a promising method to apply rejuvenator in bitumen. These...conference paper 2013
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Su, J.F. (author), Qiu, J. (author), Schlangen, H.E.J.G. (author)Preservation and renovation bitumen of pavement is a big problem for the whole world. Traditionally, application rejuvenators is the only one method that can restore the original properties of the pavements. However, some puzzles still restrict its successful usage. Microencapsulation is a promising method to apply rejuvenator in bitumen. These...conference paper 2013
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- Garcia, A. (author), Schlangen, H.E.J.G. (author), Van de Ven, M.F.C. (author) conference paper 2011
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Ibrovic, V. (author), Lukovic, M. (author), Schlangen, E. (author)Strain hardening cementitious composites (SHCC) have been used in variety of structural applications. Apart from this, they are also suitable for non-structural applications. In this work, the application of SHCC for producing cover plates for light switches and power sockets is presented. For design and decorative industry, cement based...conference paper 2014
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- Qian, Z. (author), Schlangen, E. (author), Ye, G. (author), Van Breugel, K. (author) conference paper 2011
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Sangadji, S. (author), Schlangen, E. (author)Many researchers proposed self healing mechanism using hollow fibres and or microcapsule containing a modifying agent dispersed in the concrete to prolong its service life and make it more durable. A novel self healing concrete concept is proposed in this paper by using porous network concrete components. They are placed at the surface or...conference paper 2012
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Wiktor, V. (author), Sangadji, S. (author), Jonkers, H.M. (author), Schlangen, H.E.J.G. (author)Bacterially induced calcium carbonate precipitation has received considerable attention for its potential application in enforcing or repairing construction material. The mechanism of bacterially mediated calcite precipitation in those studies is primarily based on the enzymatic hydrolysis of urea. Besides calcite precipitation, this reaction...conference paper 2013
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Nedeljković, Marija (author), Visser, Jeanette (author), Nijland, Timo G. (author), Valcke, Siska (author), Schlangen, Erik (author)In the Netherlands, beside cement replacement with more green cement types, there is also an urgent need for alternative materials for natural sand in new concrete in order to make it circular. Furthermore, the recyclers have raised questions regarding upscaling and the potential of fine recycled concrete aggregates (fRCA) in structural concrete...conference paper 2021
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Xiong, W. (author), Zhu, G. (author), Tang, J. (author), Dong, B. (author), Han, N. (author), Xing, F. (author), Schlangen, H.E.J.G. (author)Poly (urea-formaldehyde) (PUF) shelled dicyclopentadiene (DCPD) microcapsules were prepared by in-situ polymerization technology for self-healing concrete applications. It’s found, during the process, sodium dodecyl benzene sulfonate (SDBS) behaves better in emulsification of DCPD than other surfactant of sodium lauryl sulfate (SLS) and styrene...conference paper 2013
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- Pacheco Farias, J. (author), Savija, B. (author), Schlangen, H.E.J.G. (author), Polder, R.B. (author) conference paper 2012
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Zhang, H. (author), Schlangen, E. (author), Ge, Z. (author), Šavija, B. (author)Properties of concrete are, to a large extent, dependent on the properties of its binding constituent, hydrated cement paste. Therefore, knowledge of properties of hydrated cement paste is crucial for predicting concrete behaviour. This paper presents an experimentally informed approach for modelling elastic and transport properties of cement...conference paper 2021
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Montero-Chacón, F. (author), Schlangen, H.E.J.G. (author), Medina, F. (author)The use of fiber-reinforced high-performance concrete (FRHPC) is becoming more extended; therefore it is necessary to develop tools to simulate and better understand its behavior. In this work, a discrete model for the analysis of fracture mechanics in FRHPC is presented. The plain concrete matrix, made of mortar and coarse aggregates, is...conference paper 2013
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Qiu, J. (author), Van de Ven, M.F.C. (author), Schlangen, H.E.J.G. (author), Wu, S. (author), Molenaar, A.A.A. (author)The traffic volume and the number of heavy vehicles are growing enormously nowadays. There is a need for designing a durable asphalt pavement with innovative technologies. Pavement structures and materials with self healing and self repairing capability are believed to be very useful in such a system. This paper is aiming to understand the self...conference paper 2012
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- Sierra Beltran, M.G. (author), Schlangen, E. (author) conference paper 2012
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Schlangen, H.E.J.G. (author), Jonkers, H.M. (author), Qian, S. (author), Garcia, A. (author)In this paper an overview is given of new developments obtained in research on self healing of cracks in cement based materials and asphalt concrete. At Delft University various projects are running to study self healing mechanisms. The first project that is discussed is Bacterial Concrete, in which bacteria are mixed in concrete, that can...conference paper 2010
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Sierra Beltran, M.G. (author), Schlangen, H.E.J.G. (author)Wood fibres can be a low cost reinforcement for cementitious materials for structural applications. In order to design a ductile cementitious material reinforced with softwood fibres the fibrematrix interface properties are studied. Pullout tests have been carried out to determine the bond strength and the influence in the pullout behaviour of...conference paper 2010
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Savija, B. (author), Schlangen, E. (author)Concrete structures are commonly cracked when in service. To overcome issues arising from cracking, self-healing concrete is being developed. Together with the development of the material, techniques to verify and quantify self-healing are being developed. A number of destructive techniques have been used in the past. It would be beneficial to...conference paper 2015