Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures

Building envelopes incorporate a multitude of functions, such as structure, room enclosure, insulation, and aesthetic appeal, typically resulting in multi-material layered constructions. With the technology of additive manufacturing, geometrical freedom can instead be utilised to integrate function...

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Main Authors: Gido Dielemans, David Briels, Fabian Jaugstetter, Klaudius Henke, Kathrin Dörfler
Format: Article
Language:English
Published: Stichting OpenAccess 2021-04-01
Series:Journal of Facade Design and Engineering
Subjects:
Online Access:https://jfde.eu/index.php/jfde/article/view/231
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author Gido Dielemans
David Briels
Fabian Jaugstetter
Klaudius Henke
Kathrin Dörfler
author_facet Gido Dielemans
David Briels
Fabian Jaugstetter
Klaudius Henke
Kathrin Dörfler
author_sort Gido Dielemans
collection DOAJ
description Building envelopes incorporate a multitude of functions, such as structure, room enclosure, insulation, and aesthetic appeal, typically resulting in multi-material layered constructions. With the technology of additive manufacturing, geometrical freedom can instead be utilised to integrate functional requirements into mono-material building components. In this research, the additive manufacturing method of lightweight concrete extrusion and its potential for thermal performance via geometric customisation is explored. It investigates whether the insulating performance of wall components can be increased through the creation of closed cellular structures, and further, whether these performance features can be functionally graded by locally adapting the geometric properties. A design tool for closedcell wall geometries is created, which integrates lightweight concrete extrusion related fabrication constraints and takes into account thermal and structural performance considerations. Through the simulation of heat transfer, generated wall geometries are analysed for their thermal performance. By calculating the layer cycle times and determining the overhang during extrusion, the structural capacity during printing is validated. Finally, experimental manufacturing of 1:1 scale architectural prototypes is executed to test the feasibility of the concept.
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spelling doaj.art-84ec372fa52948158f1b56a4f8de09102023-03-15T13:53:01ZengStichting OpenAccessJournal of Facade Design and Engineering2213-302X2213-30382021-04-019110.7480/jfde.2021.1.5418231Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures Gido Dielemans0David Briels1Fabian Jaugstetter2Klaudius Henke3Kathrin Dörfler4TT Professorship Digital Fabrication, Department of Architecture, Technical University of Munich, Munich, GermanyChair of Building Technology and Climate Responsive Design, Department of Architecture, Technical University of MunichTT Professorship Digital Fabrication, Department of Architecture, Technical University of Munich, Munich, GermanyChair of Timber Structures and Building Construction, Department of Civil, Geo and Environmental Engineering, Technical University of MunichTT Professorship Digital Fabrication, Department of Architecture, Technical University of Munich, Munich, Germany Building envelopes incorporate a multitude of functions, such as structure, room enclosure, insulation, and aesthetic appeal, typically resulting in multi-material layered constructions. With the technology of additive manufacturing, geometrical freedom can instead be utilised to integrate functional requirements into mono-material building components. In this research, the additive manufacturing method of lightweight concrete extrusion and its potential for thermal performance via geometric customisation is explored. It investigates whether the insulating performance of wall components can be increased through the creation of closed cellular structures, and further, whether these performance features can be functionally graded by locally adapting the geometric properties. A design tool for closedcell wall geometries is created, which integrates lightweight concrete extrusion related fabrication constraints and takes into account thermal and structural performance considerations. Through the simulation of heat transfer, generated wall geometries are analysed for their thermal performance. By calculating the layer cycle times and determining the overhang during extrusion, the structural capacity during printing is validated. Finally, experimental manufacturing of 1:1 scale architectural prototypes is executed to test the feasibility of the concept. https://jfde.eu/index.php/jfde/article/view/231Additive ManufacturingLightweight concrete extrusionComputational designThermal performanceFunctionally graded materials
spellingShingle Gido Dielemans
David Briels
Fabian Jaugstetter
Klaudius Henke
Kathrin Dörfler
Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
Journal of Facade Design and Engineering
Additive Manufacturing
Lightweight concrete extrusion
Computational design
Thermal performance
Functionally graded materials
title Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
title_full Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
title_fullStr Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
title_full_unstemmed Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
title_short Additive Manufacturing of Thermally Enhanced Lightweight Concrete Wall Elements with Closed Cellular Structures
title_sort additive manufacturing of thermally enhanced lightweight concrete wall elements with closed cellular structures
topic Additive Manufacturing
Lightweight concrete extrusion
Computational design
Thermal performance
Functionally graded materials
url https://jfde.eu/index.php/jfde/article/view/231
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AT fabianjaugstetter additivemanufacturingofthermallyenhancedlightweightconcretewallelementswithclosedcellularstructures
AT klaudiushenke additivemanufacturingofthermallyenhancedlightweightconcretewallelementswithclosedcellularstructures
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