Searched for: subject%3A%22clay%22
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Dortland, Anne-Martine (author)
Mechanical dredging of a stiff clay results in clay lumps. Those clay lumps can be reused for the construction of land reclamation projects, and hereby economic and environmental value is generated. Placement of the clay lumps<br/>in water result in a matrix of clay lumps and an interlump void space. The collapse of the interlump void space will...
master thesis 2019
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Ambrosi, Matteo (author)
During the advance of a tunnel boring machine (TBM), the torque applied to rotate the cutterhead must overcome the resisting moments acting on it. Hence, one of the major concerns of TBM design is to determine the torque and power requirements of the excavation machine. The first empirical approach for torque estimation was developed in the 80’s...
master thesis 2019
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Polinder, Herbert (author)
Around 55% of The Netherlands is protected by flood defences like dikes. Flood defences must meet requirements which are based on an allowed flood probability. Safety assessments are performed to check whether flood defences meet these requirements. Uncertainties are explicitly included in safety assessments. Uncertainty in soil behaviour is one...
master thesis 2019
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Ammar Taher Nabil Ibrahim, Ammar (author)
Since 3D printing is relatively new in the architecture applications, exploring how it could be integrated with environment-friendly materials as clay could lead to a more sustainable approach for materialising complex building components.<br/>This research is investigating the answer to the research question “What are the printing techniques...
master thesis 2019
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Hermidas, N. (author)
Submarine gravity flows constitute the last link in the source-to-sink sediment transport chain. They are the main mechanism for the transportation of sediment from the shallower to the deeper parts of the ocean. Due to their great volume, mobility, and power, they pose a formidable threat to the offshore infrastructures, and can generate...
doctoral thesis 2019
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Akporotu, Richard (author)
<br/>This research has shed light on the capability of the HASP model in reproducing the dilatant behaviour of OC clays in drained and undrained conditions. The model is formulated by employing a combined hardening rule and uses the void ratio as a state variable while maintaining the simplicity of the MCC model. However, a sensitivity analysis...
master thesis 2019
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Chen, Y. (author), Yalçinkaya, Ç. (author), Copuroglu, Oguzhan (author), Schlangen, E. (author)
Recently, our group attempted to develop the ternary blended (Portland cement, calcined clay and limestone) cementitious material for 3D concrete printing (3DCP). Due to the elimination of formwork during the layer-by-layer casting process, the printed material should have favorable elastic properties and green strength at the fresh state. A...
conference paper 2019
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Braekmans, D. (author), Boschloos, Vanessa (author), Hameeuw, Hendrik (author), Van der Perre, Athena (author)
A collection of Prime Cultural Heritage artefacts consisting of Egyptian late Middle Kingdom figurines (c. 1850–1700 BCE), made of unfired clay and covered in inscriptions, is kept at the Royal Museums of Art and History (RMAH) in Brussels, Belgium. Several of these hieratic inscriptions curse enemies of the Egyptian state, including...
journal article 2019
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Chen, Y. (author), Li, Z. (author), Chaves Figueiredo, S. (author), Copuroglu, Oguzhan (author), Veer, F.A. (author), Schlangen, E. (author)
The goal of this study is to investigate the effects of different grades of calcined clay on the extrudability and early-age strength development under ambient conditions. Four mix designs were proposed. Three of them contained high, medium, and low grades of calcined clay, respectively, and one was the reference without calcined clay. In terms...
journal article 2019
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Chen, Y. (author), Chaves Figueiredo, S. (author), Yalçinkaya, Ç. (author), Copuroglu, Oguzhan (author), Veer, F.A. (author), Schlangen, E. (author)
To investigate the effects of viscosity-modifying admixture (VMA) on the extrudability of limestone and calcined clay-based cementitious materials, three mix designs with different dosages of VMA were proposed in this study. The ram extrusion was utilized as an extrusion model for exploring the fresh properties of printable materials. Two...
journal article 2019
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Chatzis, Konstantinos (author)
The term peat is commonly used to describe organic soils, composed of fragmented plant remains and fibers. Despite the extensive research on the behaviour of peat during the last 50 years, the vast majority of the attention was devoted to the volumetric behaviour. Only few attempts are reported to model the deviatoric behavior of peat, which is...
master thesis 2018
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Gómez Meyer, Eduardo (author)
Soil characterization of the upper 2 meters of the seabed is essential to optimize the design of hydrocarbon fields (mooring systems), wellheads, subsea completions, pipelines, anchors and mudmat foundations (Randolph, 2016). Additionally, it has an increasing importance for geohazard evaluation, particularly in submarine slides. In oceanic...
master thesis 2018
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Sedighi, Majid (author), Thomas, Hywel R. (author), Vardon, P.J. (author)
This paper presents an investigation of coupled thermal, hydraulic, and chemical behavior of a compacted bentonite buffer under the heating and hydration conditions of geological disposal of high-level nuclear waste. The study presented provides further insight into the evolution of hydro-geochemistry of the compacted bentonite and the clay...
journal article 2018
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Mäder, Mäde (author)
The Paleocene-Eocene Thermal Maximum (PETM) was a time of relatively abrupt climate change with intensive atmospheric greenhouse warming of 5 - 8˚C and is regarded as quasi-analogous for the modern anthropogenically-induced global warming. It therefore attracted considerable attention from geologists over the last decades. The PETM occurred 56...
master thesis 2018
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Messali, F. (author), Rots, J.G. (author)
In recent years, seismic assessment of existing unreinforced masonry (URM) structures is being increasingly based on nonlinear methods. The in-plane displacement capacity represents one of the most crucial yet still debated features of the nonlinear behaviour of URM piers. International codes often employ empirical models to estimate the pier...
journal article 2018
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Fila, Joep (author)
As the demand for renewable energy is constantly rising, more offshore wind farms are being built at sea to meet European targets towards sustainable energy transition. Van Oord’s offshore installation vessel Aeolus was purposely-built to transport and install foundations of offshore wind turbines. To ensure that the vessel remains competitive...
master thesis 2018
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Hermidas, N. (author), Eggenhuisen, Joris T. (author), Jacinto, Ricardo Silva (author), Luthi, S.M. (author), Toth, Ferenc (author), Pohl, Florian (author)
This study presents a classification for subaqueous clay-laden sediment gravity flows. A series of laboratory flume experiments were performed using 9%, 15%, and 21% sediment mixture concentrations composed of sand, silt, clay, and tap water, on varying bed slopes of 6°, 8°, and 9.5°, and with discharge rates of 10 and 15 m<sup>3</sup>/hr. In...
journal article 2018
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Li, Y. (author), Vardon, P.J. (author), Hicks, M.A. (author), Hart, Jaap (author), Fokker, Peter A. (author)
OPERA-PU-TUD321d<br/>Radioactive substances and ionizing radiation are used in medicine, industry, agriculture, re- search, education and electricity production. This generates radioactive waste. In the Netherlands, this waste is collected, treated and stored by COVRA (Centrale Organisatie Voor Radioactief Afval). After interim storage for a...
report 2018
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Vork, Jeroen (author)
The construction of the new airport of Mexico City (NAICM) is challenging, as the subsoil at the site is very weak. The airport, which is under construction at the moment, is located on top of thick layers of Mexico Clay soils. These clayey layers consist of a mixture of both clay particles and pyroclastic volcanic materials. These unique soils...
master thesis 2017
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Nanda, S. (author), Sivakumar, V. (author), Hoyer, P. (author), Bradshaw, A. (author), Gavin, Kenneth (author), Gerkus, H. (author), Jalilvand, S. (author), Gilbert, R. B. (author), Doherty, P. (author), Fanning, J. (author)
In recent times, interest in dynamically installed foundation systems for deep-sea construction has increased; however, these foundation systems are still under development and need quantification of various soil parameters with different perspectives. For the design of dynamically installed foundations, it is essential to assess the strain...
journal article 2017
Searched for: subject%3A%22clay%22
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