Two Year Exposure of 3D Printed Cementitious Columns in a High Alpine Environment
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Author / Producer
Date
2022
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
While digital fabrication technologies with concrete have focused primarily on process development and compressive strength in terms of performance, more recently studies evaluating the durability performance of 3D printed cementitious materials have started to appear. To date, however, no field performance assessments have been published regarding 3D printed cementitious materials. In this study, we present the condition of bespoke 3D printed columns that have been exposed to the high alpine environment of Riom-Parsonz, Switzerland, for a period of two years. Damage levels are variable from column to column, often appearing as vertically oriented cracks that can also track along weak layer interfaces. The damage is conjectured to be linked primarily to freeze-thaw damage and/or thermal or differential shrinkage strains. The link between column design and damage is discussed in depth, in particular as it relates to the current predominant use case of 3D printed cementitious materials as a lost formwork.
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Publication status
published
External links
Book title
Third RILEM International Conference on Concrete and Digital Fabrication
Journal / series
Volume
37
Pages / Article No.
182 - 187
Publisher
Springer
Event
3rd RILEM International Conference on Concrete and Digital Fabrication (Digital Concrete 2022)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
3D printing; Digital fabrication; Concrete; Durability; Field exposure
Organisational unit
03891 - Flatt, Robert J. / Flatt, Robert J.
02284 - NFS Digitale Fabrikation / NCCR Digital Fabrication
Notes
Conference lecture held on June 29, 2022.
Funding
141853 - Digital Fabrication - Advanced Building Processes in Architecture (SNF)
205604 - NCCR Digital Fabrication: Innovative Building Processes in Architecture (phase III) (SNF)
205604 - NCCR Digital Fabrication: Innovative Building Processes in Architecture (phase III) (SNF)