Full Second RILEM International Conference On Concrete and Digital Fabrication Digital Concrete 2020 Freek P. Bos Ebook All Chapters
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Freek P. Bos
Sandra S. Lucas
Rob J. M. Wolfs
Theo A. M. Salet Editors
Second RILEM
International
Conference
on Concrete and
Digital Fabrication
Digital Concrete 2020
Second RILEM International Conference on
Concrete and Digital Fabrication
RILEM BOOKSERIES
Volume 28
Editors
123
Editors
Freek P. Bos Sandra S. Lucas
Built Environment Built Environment
Eindhoven University of Technology Eindhoven University of Technology
Eindhoven, The Netherlands Eindhoven, The Netherlands
This Springer imprint is published by the registered company Springer Nature Switzerland AG
The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland
Preface
It is our great pride and pleasure to present to you the proceedings of Digital
Concrete 2020, the 2nd RILEM International Conference on Concrete and Digital
Fabrication. More than 100 papers await you, collected from around the globe.
Digital Concrete was initiated by the RILEM Technical Committee 276 Digital
Fabrication with cement-based materials. Starting in 2016, this committee has stood
at the cradle of an impetuously growing field of technologies and associated
research. Driven by the promise of increased productivity and speed, reduced
material use and cost, and enhanced geometrical freedom, digital fabrication
methods with cement-based materials have taken a flight. The number of papers has
tripled since the first Digital Concrete conference, held in September of 2018 at the
ETH Zurich, Switzerland. Distinctive areas of research within the field are
becoming discernable, such as mixture design, rheology & fresh state behaviour,
hardened properties, and structural engineering. Technology, equipment and digital
design strategies, is a particular field of research that more than ever plays a key role
in the development of cement-based manufacturing. It builds new collaborations
between previously unrelated fields of expertise. A significant number of contri-
butions in each of these areas can be found in these proceedings. In addition, we
also find papers aimed at applications, as well as studies on the impact of these
technologies, such as life cycle and economic analyses. This mirrors the expansive
growth of ‘real’ applications.
Professional associations are setting up and expanding working groups.
Figuratively speaking, we are moving from childhood into adolescence. This means
our capabilities are growing rapidly, and every day we can do more—better, faster,
and higher. This brings joy and excitement. However, whilst our capabilities are
growing, so are our responsibilities. Digital fabrication with cement-based materials
will need to provide quality, safety, and sustainability. Academics and professionals
need to reach out to make sure that scientific results, ranging from the quantification
of ‘printability’ to shrinkage control, from low-emission binders to reinforcement,
from interface properties to design methodology and many more, find their way into
practice. Vice versa, lessons and needs from industry should guide research
directions and priorities. Digital Concrete is the platform where this synergy is
v
vi Preface
forged. We extent a virtual warm welcome to you, as this 2020 edition proceeds
online in tumultuous times when the COVID-19 virus shakes our world. In addi-
tion, we hope to see you in person too at the on-location Digital Concrete 2020 (re)
visited workshop in Eindhoven in 2021.
Digital Concrete 2020 presents an outstanding line-up of keynote speakers that
represent the state-of-the-art of research across the globe. Once again, Digital
Concrete has teamed up with Cement & Concrete Research to deliver a dedicated
special issue containing 13 papers from renowned experts in the field, including the
keynote speakers. Furthermore, the Dutch magazine Cement publishes a theme
issue in Dutch with selected proceedings papers, for the local professional market.
We would like to thank all the authors for their contributions: their excellent
work provides the backbone of the conference and allows the world to learn and
grow. We thank the keynote speakers and gratefully acknowledge the support of
RILEM and the Scientific and Organizing Committees. A special word of gratitude
goes to our sponsors, which at the time of writing included Saint Gobain Weber
Beamix, Sika, and Twente Additive Manufacturing (platinum), Bekaert (gold), and
BASF and Dow (Silver).
Finally, we thank you, reader and conference participant, and hope you will
enjoy an inspiring conference.
Conference Committees
Conference Chair
Theo A. M. Salet Eindhoven University of Technology,
The Netherlands
vii
viii Organization
Lauri Hass
Karsten Nefs
Derk Bos
Zeeshan Y. Ahmed
Stefan Chaves Figueiredo
Naomi van Hierden
Monique van Gaalen
Ginny Vissers
Department of the Built Environment
Eindhoven University of Technology
Eindhoven, the Netherlands
Contents
xi
xii Contents
Mechanical Performance
Quantitative Evaluation of Orientation of Steel Fibers in 3D-Printed
Ultra-High Performance Concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389
Arun R. Arunothayan, Behzad Nematollahi, Jay Sanjayan, Ravi Ranade,
Shin Hau Bong, and Kamal Khayat
Steel Fiber Links in 3D Printed Concrete . . . . . . . . . . . . . . . . . . . . . . . 398
Frederick Bester, Marchant van den Heever, Jacques Kruger, Seung Cho,
and Gideon van Zijl
Mechanical Characterization of Cement-Based Mortar Used
in 3DCP Including Early-Age Creep Effects . . . . . . . . . . . . . . . . . . . . . . 407
Lorenzo Casagrande, Laura Esposito, Costantino Menna,
Domenico Asprone, and Ferdinando Auricchio
Influence of Pumping/Extrusion on the Air-Void System of 3D
Printed Concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 417
Arnesh Das, Yu Song, Sara Mantellato, Timothy Wangler,
Robert J. Flatt, and David A. Lange
Fire Behavior of a Printed Sample for Building . . . . . . . . . . . . . . . . . . . 428
Melody D’Hondt, Sébastien Rémond, Philippe Leblond, Bunthan Iea,
Estelle Hynek, and Nicolas Pinoteau
Effect of Metallic Fibers on the Print Quality and Strength of 3D
Printed Concrete . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 439
Rashid Hameed, Aurélie Papon, Arnaud Perrot, and Damien Rangeard
Facilitating Ductile Failure of 3D Printed Concrete Elements
in Fire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 449
Jacques Kruger, Antonio Cicione, Frederick Bester, Marchant van den
Heever, Seung Cho, Richard Walls, and Gideon van Zijl
High-Performance Light-Weight Concrete for 3D Printing . . . . . . . . . . 459
Malek Mohammad, Eyad Masad, Thomas Seers,
and Sami G. Al-Ghamdi
Mechanical Characterization of Layer-by-Layer Interface
in Concrete Elements Obtained by Additive Manufacturing . . . . . . . . . 468
Rosanna Napolitano, Costantino Menna, Domenico Asprone,
and Lorenzo Del Giudice
Dynamic Behaviour of Layered 3D Printed Concrete Elements . . . . . . . 478
Rosanna Napolitano, Costantino Menna, Daniele Forni,
Domenico Asprone, and Ezio Cadoni
xvi Contents
The following list is presenting the global offer of RILEM Publications, sorted by
series. Each publication is available in printed version and/or in online version.
xxiii
xxiv RILEM Publications
PRO 38: 3rd International RILEM Workshop on Testing and Modelling the
Chloride Ingress into Concrete (ISBN: 2-912143-48-9; e-ISBN: 2912143578);
Eds. C. Andrade and J. Kropp
PRO 39: 6th International RILEM Symposium on Fibre-Reinforced Concretes -
BEFIB 2004 (ISBN: 2-912143-51-9; e-ISBN: 2912143748); Eds. M. Di Prisco,
R. Felicetti and G. A. Plizzari
PRO 40: International RILEM Conference on the Use of Recycled Materials in
Buildings and Structures (ISBN: 2-912143-52-7; e-ISBN: 2912143756);
Eds. E. Vázquez, Ch. F. Hendriks and G. M. T. Janssen
PRO 41: RILEM International Symposium on Environment-Conscious Materials
and Systems for Sustainable Development (ISBN: 2-912143-55-1; e-ISBN:
2912143640); Eds. N. Kashino and Y. Ohama
PRO 42: SCC’2005 - China: 1st International Symposium on Design, Performance
and Use of Self-Consolidating Concrete (ISBN: 2-912143-61-6; e-ISBN:
2912143624); Eds. Zhiwu Yu, Caijun Shi, Kamal Henri Khayat and Youjun Xie
PRO 43: International RILEM Workshop on Bonded Concrete Overlays (e-ISBN:
2-912143-83-7); Eds. J. L. Granju and J. Silfwerbrand
PRO 44: 2nd International RILEM Workshop on Microbial Impacts on Building
Materials (CD11) (e-ISBN: 2-912143-84-5); Ed. M. Ribas Silva
PRO 45: 2nd International Symposium on Nanotechnology in Construction, Bilbao
(ISBN: 2-912143-87-X; e-ISBN: 2912143888); Eds. Peter J. M. Bartos, Yolanda
de Miguel and Antonio Porro
PRO 46: ConcreteLife’06 - International RILEM-JCI Seminar on Concrete
Durability and Service Life Planning: Curing, Crack Control, Performance in Harsh
Environments (ISBN: 2-912143-89-6; e-ISBN: 291214390X); Ed. K. Kovler
PRO 47: International RILEM Workshop on Performance Based Evaluation and
Indicators for Concrete Durability (ISBN: 978-2-912143-95-2; e-ISBN:
9782912143969); Eds. V. Baroghel-Bouny, C. Andrade, R. Torrent and
K. Scrivener
PRO 48: 1st International RILEM Symposium on Advances in Concrete through
Science and Engineering (e-ISBN: 2-912143-92-6); Eds. J. Weiss, K. Kovler,
J. Marchand, and S. Mindess
PRO 49: International RILEM Workshop on High Performance Fiber Reinforced
Cementitious Composites in Structural Applications (ISBN: 2-912143-93-4;
e-ISBN: 2912143942); Eds. G. Fischer and V. C. Li
PRO 50: 1st International RILEM Symposium on Textile Reinforced Concrete
(ISBN: 2-912143-97-7; e-ISBN: 2351580087); Eds. Josef Hegger, Wolfgang
Brameshuber and Norbert Will
RILEM Publications xxvii
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