Searched for: subject%3A%22Flexible%255C+mould%22
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Grunewald, S. (author), Schipper, H.R. (author)
The transition period between the mixing of concrete and the begin of setting increasingly receives attention, as special production processes can be developed with tailor-made fresh state characteristics. In this publication the two processes of 3D Concrete Printing (3DCP) and the production with the Flexible Mould Process (FMP) are...
conference paper 2020
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Vrachas, Panteleimon (author)
Nowadays, precast technology is mainly used for the production of concrete shell elements. Computer Numerically Controlled (CNC) milling techniques is the main production method of single or double-curved concrete elements, creating astonishing shapes with high accuracy. However, these techniques are also accompanied with high costs and large...
master thesis 2018
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Kilimatos, Andreas (author)
Shell structures appear quite often in our daily life. From aircraft fuselages to storage silos and boat hulls, these structures are employed for their structural efficiency and the aesthetics they provide. They are characterised by a small thickness in comparison to their other dimensions and by curvature in their unstressed state. Despite...
master thesis 2018
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Troian, S (author), Grunewald, S. (author), Schlangen, E. (author), Copuroglu, Oguzhan (author)
The production of double-curved precast concrete elements for cladding or shell structures requires expensive CNC (computer numerical control)-milled formwork. As an alternative method, the innovative flexible mould for economically efficient and sustainable production of such elements is discussed in this paper. This method comprises the use of...
conference paper 2018
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Zhang, Y. (author), Ye, G. (author)
In this paper, a new analytic model for predicting chloride diffusivity in unsaturated cementitious materials is developed based on conductivity theory and Nernst-Einstein equation. The model specifies that chloride diffusivity in unsaturated cementitious materials can be mathematically described as a function of chloride diffusivity in...
conference paper 2017
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Schipper, H.R. (author), Grunewald, S. (author), Troian, S. (author), Raghunath, P. (author), Schlangen, E. (author), Copuroglu, Oguzhan (author)
Expensive CNC (computer numerical controlled)-milled formwork is required for the production of double-curved precast concrete elements for cladding or shell structures. The innovative flexible mould method for economically efficient and sustainable production of such elements, developed at Delft University of Technology, comprises the use of a...
conference paper 2017
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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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Schipper, H.R. (author), Eigenraam, P. (author)
Practical implications of deforming a flat mould surface into a double-curved shape. Proposal for processing concrete elements with a complex double-curved geometry in an efficient and accurate manner using parametric, associative modelling.
journal article 2016
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Henriksen, T.N. (author), Knaack, U. (author), Lo, S. (author)
Glass Fibre Reinforced Concrete (GFRC) has been developed over the last 50 years into the material it is today. GFRC is mostly used as a cladding material and to a lesser extent for structural elements. This paper examines the challenges of using freeform thin-walled GFRC elements in the design and fabrication of a self-supporting artwork. The...
conference paper 2015
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Polhuijs, P. (author)
This project is a design proposal for the Van Gendthallen in Amsterdam. Sports is one function distinctly missing in the eastern part of Amsterdam and which could uniquely make use of the large volumes of the building. Double curved panels made by a flexible mould will be used to create a new roof shell structure, to transform the Van...
master thesis 2015
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Schipper, H.R. (author), Eigenraam, P. (author), Grünewald, S. (author), Soru, M. (author), Nap, P. (author), Van Overveld, B. (author), Vermeulen, J. (author)
The production of architectural elements with complex geometry is challenging for concrete manufacturers. Computer-numerically-controlled (CNC) milled foam moulds have been applied frequently in the last decades, resulting in good aesthetical performance. However, still the costs are high and a large volume of waste is produced. This paper...
conference paper 2015
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Eigenraam, P. (author), Schipper, H.R. (author)
Flexible moulds for production of double curved elements could offer a solution for challenges in realizing freeform architectural design which tends to be costly and time consuming. However developments are still ongoing and promising methods that result in highly accurate elements still remain to be proven. When surfaces are deformed into a...
conference paper 2015
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Schipper, H.R. (author), Grünewald, S. (author), Eigenraam, P. (author), Raghunath, P. (author), Kok, M.A.D. (author)
Free-form buildings tend to be expensive. By optimizing the production process, economical and well-performing precast concrete structures can be manufactured. In this paper, a method is presented that allows producing highly accurate double curved-elements without the need for milling two expensive mould surfaces per single element. The...
conference paper 2014
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Troian, S. (author)
A new architectural concept is being developed nowadays - free-form design, which allows the architects to add personality to a building through the shape itself. To sustain this development, the existing and available production techniques have to be combined with new technological innovations. The flexible mould system uses the traditional...
master thesis 2014
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Schipper, H.R. (author), Grunewald, S. (author), Eigenraam, P. (author), Raghunath, P. (author), Kok, M. (author)
Free-form buildings tend to be expensive. By optimizing the production process, economical and wellperforming concrete structures and elements can be manufactured. In this paper, an innovative method is presented that allows producing highly accurate double curved-elements without the need for milling two expensive mould surfaces per single...
conference paper 2014
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Grunewald, S. (author), Schipper, H.R. (author), Raghunath, P. (author)
This paper describes how curved precast concrete elements can be manufactured in an open and reusable flexible mould. The proposed method reduces formwork costs of architectural freeform elements in concrete. First, the method is described briefly, then a series of tests are discussed, demonstrating that by measuring the rheological parameters...
conference paper 2013
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Schipper, H.R. (author), Grünewald, S. (author), Kok, M.A.D. (author), Nijsse, R. (author), Raghunath, P. (author)
In an earlier article (CPI issue of August 2011 [1]) a method was presented for producing precast curved panels with a thickness of a few centimeters using the 'flexible mould method'. This method is the central theme in the PhD study of the first author on the realization of freeform architecture in concrete. The concrete panels manufactured...
journal article 2013
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Eigenraam, P. (author)
This thesis focuses on the consequences of deforming a flexible mould surface. Based on the findings a new mould design was developed in order research the deformation of the mould. Also a method was developed to obtain an accurate geometry of the mould surface.
master thesis 2013
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Grünewald, S. (author), Janssen, B. (author), Schipper, H.R. (author), Vollers, K.J. (author), Walraven, J.C. (author)
This paper discusses the effect of intentional deformation of a flexible formwork after casting of the concrete and the influence of the characteristics of concrete in the fresh state on the quality of a concrete element. This deformation is intended to bring the concrete element in its desired final shape; the deformation typically takes place...
conference paper 2012
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Schipper, H.R. (author), Janssen, B. (author)
Free form architecture with complex geometry brings along new challenges for manufacturers of building components. This paper describes the application of structural mechanics to predict the behaviour of an elastic mould surface, used as formwork for the manufacturing of double curved panels in precast concrete. Results are presented of...
conference paper 2011
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