The production of free formed concrete elements in a flexible mould

A.D.C. Pronk, M.M.T. Dominicus, J. Ketelaars, P.F.C. van Laerhoven

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Evolution has proven that the microscopic geometry of the human bone (figure 1) is able to bear weights and at the same time to be light in weight. This quality, in combination with the attractive image of it, gave us a new field of interest for using this kind of morphology in a façade element. This type of element – free form - is an example of the forms that are pursued more frequently by contemporary architects. The growing interest for these free formed elements sparks the need for new approaches to production processes. The approach of the production process of free formed concrete elements has usually been influenced by the traditional method of casting concrete into stiff moulds. In most cases this has lead to very complex and labor intensive production processes resulting into rather irregular concrete surfaces. In this project a different approach towards casting concrete has been chosen to develop a less complex production method that moreover, results into smoother surfaces. To achieve this goal a mould has been made out of EPDM rubber. Sheets of this material were locally pressed together with wooden discs. In the process of casting concrete the elasticity of the material under influence of the concrete pressure leads to deflections. By being able to control these deflections up to a certain level, it is possible to produce elements that resemble the microscopic bone structure up to a satisfying level. The research that has been done has lead to a mockup of a façade element out of fiber reinforced concrete (figure 2). In this particular project a model resembling a bone structure was chosen, however the production process enables several forms and patterns resulting in double curved and smooth surfaces.
Original languageEnglish
Title of host publicationProceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008
EditorsJ.G.O Salinas
Place of PublicationAjusco Coyoacan
PublisherGrupo Editorial Formato
Publication statusPublished - 2008
Event2008 IASS-SLTE International Symposium - Acapulco, Mexico
Duration: 27 Oct 200831 Oct 2008

Conference

Conference2008 IASS-SLTE International Symposium
CountryMexico
CityAcapulco
Period27/10/0831/10/08
Other"New Materials and Technologies, New Designs and Innovations"

Fingerprint

Concretes
Bone
Casting
Electric sparks
Elasticity
Rubber
Personnel
Geometry
Fibers

Cite this

Pronk, A. D. C., Dominicus, M. M. T., Ketelaars, J., & van Laerhoven, P. F. C. (2008). The production of free formed concrete elements in a flexible mould. In J. G. O. Salinas (Ed.), Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008 Ajusco Coyoacan: Grupo Editorial Formato.
Pronk, A.D.C. ; Dominicus, M.M.T. ; Ketelaars, J. ; van Laerhoven, P.F.C. / The production of free formed concrete elements in a flexible mould. Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008. editor / J.G.O Salinas. Ajusco Coyoacan : Grupo Editorial Formato, 2008.
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abstract = "Evolution has proven that the microscopic geometry of the human bone (figure 1) is able to bear weights and at the same time to be light in weight. This quality, in combination with the attractive image of it, gave us a new field of interest for using this kind of morphology in a fa{\cc}ade element. This type of element – free form - is an example of the forms that are pursued more frequently by contemporary architects. The growing interest for these free formed elements sparks the need for new approaches to production processes. The approach of the production process of free formed concrete elements has usually been influenced by the traditional method of casting concrete into stiff moulds. In most cases this has lead to very complex and labor intensive production processes resulting into rather irregular concrete surfaces. In this project a different approach towards casting concrete has been chosen to develop a less complex production method that moreover, results into smoother surfaces. To achieve this goal a mould has been made out of EPDM rubber. Sheets of this material were locally pressed together with wooden discs. In the process of casting concrete the elasticity of the material under influence of the concrete pressure leads to deflections. By being able to control these deflections up to a certain level, it is possible to produce elements that resemble the microscopic bone structure up to a satisfying level. The research that has been done has lead to a mockup of a fa{\cc}ade element out of fiber reinforced concrete (figure 2). In this particular project a model resembling a bone structure was chosen, however the production process enables several forms and patterns resulting in double curved and smooth surfaces.",
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Pronk, ADC, Dominicus, MMT, Ketelaars, J & van Laerhoven, PFC 2008, The production of free formed concrete elements in a flexible mould. in JGO Salinas (ed.), Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008. Grupo Editorial Formato, Ajusco Coyoacan, 2008 IASS-SLTE International Symposium, Acapulco, Mexico, 27/10/08.

The production of free formed concrete elements in a flexible mould. / Pronk, A.D.C.; Dominicus, M.M.T.; Ketelaars, J.; van Laerhoven, P.F.C.

Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008. ed. / J.G.O Salinas. Ajusco Coyoacan : Grupo Editorial Formato, 2008.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AU - Dominicus, M.M.T.

AU - Ketelaars, J.

AU - van Laerhoven, P.F.C.

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N2 - Evolution has proven that the microscopic geometry of the human bone (figure 1) is able to bear weights and at the same time to be light in weight. This quality, in combination with the attractive image of it, gave us a new field of interest for using this kind of morphology in a façade element. This type of element – free form - is an example of the forms that are pursued more frequently by contemporary architects. The growing interest for these free formed elements sparks the need for new approaches to production processes. The approach of the production process of free formed concrete elements has usually been influenced by the traditional method of casting concrete into stiff moulds. In most cases this has lead to very complex and labor intensive production processes resulting into rather irregular concrete surfaces. In this project a different approach towards casting concrete has been chosen to develop a less complex production method that moreover, results into smoother surfaces. To achieve this goal a mould has been made out of EPDM rubber. Sheets of this material were locally pressed together with wooden discs. In the process of casting concrete the elasticity of the material under influence of the concrete pressure leads to deflections. By being able to control these deflections up to a certain level, it is possible to produce elements that resemble the microscopic bone structure up to a satisfying level. The research that has been done has lead to a mockup of a façade element out of fiber reinforced concrete (figure 2). In this particular project a model resembling a bone structure was chosen, however the production process enables several forms and patterns resulting in double curved and smooth surfaces.

AB - Evolution has proven that the microscopic geometry of the human bone (figure 1) is able to bear weights and at the same time to be light in weight. This quality, in combination with the attractive image of it, gave us a new field of interest for using this kind of morphology in a façade element. This type of element – free form - is an example of the forms that are pursued more frequently by contemporary architects. The growing interest for these free formed elements sparks the need for new approaches to production processes. The approach of the production process of free formed concrete elements has usually been influenced by the traditional method of casting concrete into stiff moulds. In most cases this has lead to very complex and labor intensive production processes resulting into rather irregular concrete surfaces. In this project a different approach towards casting concrete has been chosen to develop a less complex production method that moreover, results into smoother surfaces. To achieve this goal a mould has been made out of EPDM rubber. Sheets of this material were locally pressed together with wooden discs. In the process of casting concrete the elasticity of the material under influence of the concrete pressure leads to deflections. By being able to control these deflections up to a certain level, it is possible to produce elements that resemble the microscopic bone structure up to a satisfying level. The research that has been done has lead to a mockup of a façade element out of fiber reinforced concrete (figure 2). In this particular project a model resembling a bone structure was chosen, however the production process enables several forms and patterns resulting in double curved and smooth surfaces.

M3 - Conference contribution

BT - Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008

A2 - Salinas, J.G.O

PB - Grupo Editorial Formato

CY - Ajusco Coyoacan

ER -

Pronk ADC, Dominicus MMT, Ketelaars J, van Laerhoven PFC. The production of free formed concrete elements in a flexible mould. In Salinas JGO, editor, Proceedings of International Symposium of the International Association for Shell and Spatial Structures (IASS) : New Materials and Technologies, New Designs and Innovations: Acapulco, Mexico, 27-31 October 2008. Ajusco Coyoacan: Grupo Editorial Formato. 2008