Second RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020

Front Matter ....Pages i-xxxv
Front Matter ....Pages 1-1
 An Fe-Rich Slag-Based Mortar for 3D Printing  (Glenn Beersaerts, Sandra S. Lucas, Yiannis Pontikes)....Pages 3-12
 Enhancing Buildability of 3D Printable Concrete by Spraying of Accelerating Admixture on Surface  (Shantanu Bhattacherjee, Manu Santhanam)....Pages 13-22
 Effect of Wollastonite Micro-Fiber Addition on Properties of 3D-Printable ‘Just-Add-Water’ Geopolymers  (Shin Hau Bong, Behzad Nematollahi, Arun R. Arunothayan, Ming Xia, Jay Sanjayan)....Pages 23-31
 Synthesis of Hybridized Rheological Modifiers for 3D Concrete Printing  (AlaEddin Douba, Clare Chan, Stephanie Berrios, Shiho Kawashima)....Pages 32-41
 Control of Strand Properties Produced with Shotcrete 3D Printing by Accelerator Dosage and Process Parameters  (Inka Dressler, Niklas Freund, Dirk Lowke)....Pages 42-52
 Comparison of Printable Inorganic Binders - Key Properties for 3D Printable Materials  (Tamino Hirsch, Tobias Dorn, Clemens Ehm, Dietmar Stephan)....Pages 53-63
 Design of Energy-Efficient White Portland Cement Mortars for Digital Fabrication  (Sibel Kurt, Yiğit A. Atalay, Ozan E. Aydın, Berrak Avcıoğlu, Tayfun Yıldırım, Gizem B. Göktepe et al.)....Pages 64-72
 Use of the Chemical and Mineral Admixtures to Tailor the Rheology and the Green Strength of 3D Printing Cementitious Mixtures  (Mohammad Amin Moeini, Masoud Hosseinpoor, Ammar Yahia)....Pages 73-82
 Characterising Concrete Mixes for 3D Printing  (Atteyeh S. Natanzi, Ciaran McNally)....Pages 83-92
 Digital Fabrication of ‘Just-Add-Water’ Geopolymers: Effects of Curing Condition and Print-Time Interval  (Behzad Nematollahi, Shin Hau Bong, Ming Xia, Jay Sanjayan)....Pages 93-102
 Advances in Binder-Jet 3D Printing of Non-cementitious Materials  (Pietro Odaglia, Vera Voney, Benjamin Dillenburger, Guillaume Habert)....Pages 103-112
 Rubber-Cement Composites for Additive Manufacturing: Physical, Mechanical and Thermo-Acoustic Characterization  (Matteo Sambucci, Marco Valente, Abbas Sibai, Danilo Marini, Alessia Quitadamo, Ettore Musacchi)....Pages 113-124
 Properties of Composite Modified with Limestone Powder for 3D Concrete Printing  (Szymon Skibicki, Maria Kaszyńska, Nawid Wahib, Mateusz Techman, Karol Federowicz, Adam Zieliński et al.)....Pages 125-134
 Effect of Limestone Powder Substitution on Fresh and Hardened Properties of 3D Printable Mortar  (Yaxin Tao, Karel Lesage, Kim Van Tittelboom, Yong Yuan, Geert De Schutter)....Pages 135-143
 Rheology Evaluation of Cement Paste with Nanoclays, Nanosilica and Polymeric Admixtures for Digital Fabrication  (Hugo Varela, Gonzalo Barluenga, Irene Palomar)....Pages 144-152
 Geopolymer Formulation for Binder Jet 3D Printing  (Vera Voney, Pietro Odaglia, Coralie Brumaud, Benjamin Dillenburger, Guillaume Habert)....Pages 153-161
 Lightweight Concrete 3D Printing by Selective Cement Activation – Investigation of Thermal Conductivity, Strength and Water Distribution  (Daniel Weger, Heejeong Kim, Daniel Talke, Klaudius Henke, Thomas Kränkel, Christoph Gehlen)....Pages 162-171
Front Matter ....Pages 173-173
 Numerical Model Describing the Early Age Behavior of 3D Printed Concrete – Work in Progress  (Sebastian Andersen, Wilson Ricardo Leal da Silva, Ieva Paegle, Jens Henrik Nielsen)....Pages 175-184
 Characterisation of the Layer Pressing Strategy for Concrete 3D Printing  (Paul Carneau, Romain Mesnil, Nicolas Ducoulombier, Nicolas Roussel, Olivier Baverel)....Pages 185-195
 A Compendious Rheo-Mechanical Test for Printability Assessment of 3D Printable Concrete  (Seung Cho, Jacques Kruger, Frederick Bester, Marchant van den Heever, Algurnon van Rooyen, Gideon van Zijl)....Pages 196-205
 Effect of Metakaolin, Fly Ash and Polypropylene Fibres on Fresh and Rheological Properties of 3D Printing Based Cement Materials  (M. Dedenis, M. Sonebi, S. Amziane, A. Perrot, G. Amato)....Pages 206-215
 “The Slug Test”: Inline Assessment of Yield Stress for Extrusion-Based Additive Manufacturing  (Nicolas Ducoulombier, Paul Carneau, Romain Mesnil, Léo Demont, Jean-François Caron, Nicolas Roussel)....Pages 216-224
 Fresh and Hardened Properties of 3D-Printed Concrete Made with Dune Sand  (Hilal El-Hassan, Fady Alnajjar, Hamad Al Jassmi, Waleed Ahmed)....Pages 225-234
 An Experimental Testing Procedure to Assess the Buildability Performance of 3D Printed Concrete Elements  (Laura Esposito, Costantino Menna, Domenico Asprone, Chiara Rossino, Maurizio Marchi)....Pages 235-245
 Investigation on the Rheological Behavior of Lightweight Foamed Concrete for 3D Printing Applications  (Devid Falliano, Giuseppe Crupi, Dario De Domenico, Giuseppe Ricciardi, Luciana Restuccia, Giuseppe Ferro et al.)....Pages 246-254
 Experimental Investigation on the Early Age Tensile Strength of Fiber Reinforced Mortar Used in 3D Concrete Printing  (Marta Fioretti, K. Sriram Kompella, Francesco Lo Monte, Laura Esposito, Costantino Menna, Sandro Moro et al.)....Pages 255-261
 Transition from Fluid to Solid Concrete in the Flexible Mould Process  (Steffen Grünewald, Roel Schipper)....Pages 262-271
 Physico-Chemical Characterization at Early-Age of 3D Printed Mortar  (Ilhame Harbouz, Emmanuel Roziere, Ammar Yahia, Ahmed Loukili)....Pages 272-279
 Gravity Driven Tests to Assess Mechanical Properties of Printable Cement-Based Materials at Fresh State  (Yohan Jacquet, Vincent Picandet, Damien Rangeard, Arnaud Perrot)....Pages 280-289
 Characterizing Extrudability for 3D Concrete Printing Using Discrete Element Simulations  (Roshan Jayathilakage, Jay Sanjayan, Pathmanathan Rajeev)....Pages 290-300
 Investigation on Structural Build-Up of 3D Printable Foam Concrete  (Viacheslav Markin, Irina Ivanova, Shirin Fataei, Silvia Reißig, Viktor Mechtcherine)....Pages 301-311
 Effect of Cement Type and Limestone Powder Content on Extrudability of Lightweight Concrete  (Carla Matthäus, Daniel Back, Daniel Weger, Thomas Kränkel, Jennifer Scheydt, Christoph Gehlen)....Pages 312-322
 Numerical Modeling of an Extrusion-Based 3D Concrete Printing Process Considering a Spatially Varying Pseudo-Density Approach  (Meron Mengesha, Albrecht Schmidt, Luise Göbel, Tom Lahmer)....Pages 323-332
 Evaluating the Influence of Aggregate Content on Pumpability of 3D Printable Concrete  (Manu K. Mohan, A. V. Rahul, Kim Van Tittelboom, Geert De Schutter)....Pages 333-341
 2D Numerical Modelling of Particle-Bed 3D Printing by Selective Paste Intrusion  (Alexandre Pierre, Daniel Weger, Arnaud Perrot, Dirk Lowke)....Pages 342-352
 Effect of Vibration on the Rheology of Concrete for 3D Printing  (K. Pattaje Sooryanarayana, P. Stynoski, D. Lange)....Pages 353-359
 Prediction of the Yield Stress of Printing Mortar Ink  (Sergis Vasileios, Malo Charrier, Claudiane M. Ouellet-Plamondon)....Pages 360-369
 Dynamic and Static Yield Stress Determination of Cementitious Paste with Admixtures  (Karim Zongo, Malo Charrier, Corentin Duval, Claudiane M. Ouellet-Plamondon)....Pages 370-378
 Penetration Study of Liquid in Powder Bed for 3D Powder-Bed Printing  (Wenqiang Zuo, Chenghao Dong, Emmanuel Keita, Nicolas Roussel)....Pages 379-386
Front Matter ....Pages 387-387
 Quantitative Evaluation of Orientation of Steel Fibers in 3D-Printed Ultra-High Performance Concrete  (Arun R. Arunothayan, Behzad Nematollahi, Jay Sanjayan, Ravi Ranade, Shin Hau Bong, Kamal Khayat)....Pages 389-397
 Steel Fiber Links in 3D Printed Concrete  (Frederick Bester, Marchant van den Heever, Jacques Kruger, Seung Cho, Gideon van Zijl)....Pages 398-406
 Mechanical Characterization of Cement-Based Mortar Used in 3DCP Including Early-Age Creep Effects  (Lorenzo Casagrande, Laura Esposito, Costantino Menna, Domenico Asprone, Ferdinando Auricchio)....Pages 407-416
 Influence of Pumping/Extrusion on the Air-Void System of 3D Printed Concrete  (Arnesh Das, Yu Song, Sara Mantellato, Timothy Wangler, Robert J. Flatt, David A. Lange)....Pages 417-427
 Fire Behavior of a Printed Sample for Building  (Melody D’Hondt, Sébastien Rémond, Philippe Leblond, Bunthan Iea, Estelle Hynek, Nicolas Pinoteau)....Pages 428-438
 Effect of Metallic Fibers on the Print Quality and Strength of 3D Printed Concrete  (Rashid Hameed, Aurélie Papon, Arnaud Perrot, Damien Rangeard)....Pages 439-448
 Facilitating Ductile Failure of 3D Printed Concrete Elements in Fire  (Jacques Kruger, Antonio Cicione, Frederick Bester, Marchant van den Heever, Seung Cho, Richard Walls et al.)....Pages 449-458
 High-Performance Light-Weight Concrete for 3D Printing  (Malek Mohammad, Eyad Masad, Thomas Seers, Sami G. Al-Ghamdi)....Pages 459-467
 Mechanical Characterization of Layer-by-Layer Interface in Concrete Elements Obtained by Additive Manufacturing  (Rosanna Napolitano, Costantino Menna, Domenico Asprone, Lorenzo Del Giudice)....Pages 468-477
 Dynamic Behaviour of Layered 3D Printed Concrete Elements  (Rosanna Napolitano, Costantino Menna, Daniele Forni, Domenico Asprone, Ezio Cadoni)....Pages 478-488
 Characterizing the Fissility of 3D Concrete Printed Elements via the Cohesive Zone Method  (Marchant van den Heever, Frederick Bester, Mohammad Pourbehi, Jacques Kruger, Seung Cho, Gideon van Zijl)....Pages 489-499
 3D Printing of Concrete: The Influence on Chloride Penetration  (Jolien Van Der Putten, Melissa De Volder, Philip Van den Heede, Geert De Schutter, Kim Van Tittelboom)....Pages 500-507
 Effect of Heat Curing and E6-Glass Fibre Reinforcement Addition on Powder-Based 3DP Cement Mortar  (Pshtiwan Shakor, Shami Nejadi, Nadarajah Gowripalan)....Pages 508-515
 Effect of Polypropylene Fibres on the Mechanical Properties of Extrudable Cementitious Material  (Thadshajini Suntharalingam, Brabha Nagaratnam, Keerthan Poologanathan, Phil Hackney, Jeffri Ramli)....Pages 516-526
 Improving the Bonding Adhesion of the Cold Joints of Normal and Lightweight 3D Printing Mortars  (Kho P. Verian, Jarron Ashcroft, Matthew D. Carli, Randall P. Bright, Eerik Maandi, Avak Avakian et al.)....Pages 527-536
 Interlayer Effect on Fracture Behavior of 3D Printing Concrete  (Yun-Chen Wu, Jason Cotrell, Mo Li)....Pages 537-546
 Auxetic Behavior of Cementitious Cellular Composites Under Uniaxial Compression and Cyclic Loading  (Yading Xu, Erik Schlangen, Branko Šavija)....Pages 547-556
 Impact of Particle Size and Grading on Aggregate-Bed 3D Concrete Printing  (Shiwei Yu, Jay Sanjayan, Hongjian Du)....Pages 557-563
 Drying of 3D Printed Mortar Filaments at Early Age Assessed by X-Ray Computed Tomography  (Wenqiang Zuo, Emmanuel Keita, Michel Bornert, Nicolas Roussel)....Pages 564-571
Front Matter ....Pages 573-573
 Printed Concrete as Formwork Material: A Preliminary Study  (Michiel Bekaert, Kim Van Tittelboom, Geert De Schutter)....Pages 575-583
 Bond of Reinforcement Cable in 3D Printed Concrete  (Freek Bos, Steven Dezaire, Zeeshan Ahmed, Anne Hoekstra, Theo Salet)....Pages 584-600
 Experimental Investigation of Topology-Optimized Deep Reinforced Concrete Beams with Reduced Concrete Volume  (Yan Liu, Jackson L. Jewett, Josephine V. Carstensen)....Pages 601-611
 Studying the Bond Properties of Vertical Integrated Short Reinforcement in the Shotcrete 3D Printing Process  (Niklas Freund, Inka Dressler, Dirk Lowke)....Pages 612-621
 Aligned Interlayer Fibre Reinforcement and Post-tensioning as a Reinforcement Strategy for Digital Fabrication  (Lukas Gebhard, Jaime Mata-Falcón, Ana Anton, Joris Burger, Ena Lloret-Fritschi, Lex Reiter et al.)....Pages 622-631
 Bending and Pull-Out Tests on a Novel Screw Type Reinforcement for Extrusion-Based 3D Printed Concrete  (Lauri Hass, Freek Bos)....Pages 632-645
 Load Carrying Capacity and Failure Mode of 3D Printing Mortar Wall Panel Under Axial Compression Loading  (Patiphat Jiramarootapong, Lapyote Prasittisopin, Chalermwut Snguanyat, Ganchai Tanapornraweekit, Somnuk Tangtermsirikul)....Pages 646-657
 Application of 3D Printed Segments Designed by Topology Optimization Analysis to a Practical Scale Prestressed Pedestrian Bridge  (Koji Kinomura, Satoshi Murata, Yujin Yamamoto, Hirotoshi Obi, Akihito Hata)....Pages 658-668
 Potential Approaches for Reinforcing Complex Concrete Structures with Integrated Flexible Formwork  (Minu Lee, Jaime Mata-Falcón, Mariana Popescu, Philippe Block, Walter Kaufmann)....Pages 669-679
 Penetration Reinforcing Method for 3D Concrete Printing  (Taylor Marchment, Jay Sanjayan)....Pages 680-690
 Combining Multiple Loads in a Topology Optimization Framework for Digitally Fabricated Concrete Structures  (Tommaso Pastore, Costantino Menna, Domenico Asprone)....Pages 691-700
 Potential for the Integration of Continuous Fiber-Based Reinforcements in Digital Concrete Production  (Martin Scheurer, Gözdem Dittel, Thomas Gries)....Pages 701-711
 3D Concrete Printing on Site: A Novel Way of Building Houses?  (Jolien Van Der Putten, Alex Van Olmen, Marijke Aerts, Emiel Ascione, Joeri Beneens, Jan Blaakmeer et al.)....Pages 712-719
 Design Optimization for 3D Concrete Printing: Improving Structural and Thermal Performances  (Gieljan Vantyghem, Marijke Steeman, Wouter De Corte, Veerle Boel)....Pages 720-727
 Flexural Behaviour of AR-Glass Textile Reinforced 3D Printed Concrete Beams  (Weiqiang Wang, Nikolaos Konstantinidis, Simon A. Austin, Richard A. Buswell, Sergio Cavalaro, Domenico Cecinia)....Pages 728-737
Front Matter ....Pages 739-739
 3D Concrete Printing - Free Form Geometries with Improved Ductility and Strength  (Zeeshan Ahmed, Alessia Biffi, Lauri Hass, Freek Bos, Theo Salet)....Pages 741-756
 Print-Cast Concrete: Additive Manufacturing for 3D Printing Mortar in Robotically Fabricated Green Sand Molds  (Christopher A. Battaglia, Martin F. Miller, Kho P. Verian)....Pages 757-767
 3D Printing of a Cement-Based Mortar in a Complex Fluid Suspension: Analytical Modeling and Experimental Tests  (Abdeslam Benamara, Alexandre Pierre, Abdelhak Kaci, Yannick Melinge)....Pages 768-777
 Experimental Study on 3D Printing of Concrete with Overhangs  (Francis Brun, Florindo Gaspar, Artur Mateus, João Vitorino, Francisco Diz)....Pages 778-789
 Inspection Methods for 3D Concrete Printing  (Richard Buswell, Peter Kinnell, Jie Xu, Norman Hack, Harald Kloft, Mehdi Maboudi et al.)....Pages 790-803
 DIGITAL CONSTRUCTION: 3D Printing for Performative Houses  (Paolo Cascone, Maddalena Laddaga, Federico Forestiero)....Pages 804-813
 Extended Lattice Model to Simulate the Printing Process of 3D Printed Cementitious Materials  (Ze Chang, Erik Schlangen, Branko Šavija)....Pages 814-823
 Quality Assessment of Printable Strain Hardening Cementitious Composites Manufactured in Two Different Printing Facilities  (Stefan C. Figueiredo, Anne L. van Overmeir, Karsten Nefs, Erik Schlangen, Theo A. M. Salet, Branko Šavija et al.)....Pages 824-838
 More Than Meets the Eye? Robotisation and Normativity in the Dutch Construction Industry  (Chantal E. Muishout, Tom N. Coggins, H. Roel Schipper)....Pages 839-851
 Influence of Processing Parameters on the Layer Geometry in 3D Concrete Printing: Experiments and Modelling  (Raphael Comminal, Wilson Ricardo Leal da Silva, Thomas Juul Andersen, Henrik Stang, Jon Spangenberg)....Pages 852-862
 Automating Concrete Construction: Digital Design of Non-prismatic Reinforced Concrete Beams  (Eduardo Costa, Paul Shepherd, John Orr, Tim Ibell, Robin Oval)....Pages 863-872
 Free Deposition Printing for Space Truss Structures  (Romain Duballet, Romain Mesnil, Nicolas Ducoulombier, Paul Carneau, Leo Demont, Mahan Motamedi et al.)....Pages 873-882
 Rapid Composite Formwork: An Automated and Customizable Process for Freeform Concrete Through Computational Design and Robotic Fabrication  (Guy E. Gardner, Kristen Forward, Kim Tse, Karan Sharma)....Pages 883-894
 Simultaneous Reinforcement of Concrete While 3D Printing  (Omar Geneidy, Sujay Kumarji, Alexandre Dubor, Aldo Sollazzo)....Pages 895-905
 Additive Manufacturing by Extrusion of Lightweight Concrete - Strand Geometry, Nozzle Design and Layer Layout  (Klaudius Henke, Daniel Talke, Carla Matthäus)....Pages 906-915
 Extrusion Nozzle Shaping for Improved 3DP of Engineered Cementitious Composites (ECC/SHCC)  (Wes McGee, Tsz Yan Ng, Kequan Yu, Victor C. Li)....Pages 916-925
 Buildability of Geopolymer Concrete for 3D Printing with Microwave Heating  (Shravan Muthukrishnan, Sayanthan Ramakrishnan, Jay Sanjayan)....Pages 926-935
 High-Resolution Additive Formwork for Building-Scale Concrete Panels  (Roberto Naboni, Luca Breseghello)....Pages 936-945
 Architectural Applications and Workflows for Additive Fabrication with Concrete  (Pfeiffer Sven, Tobias Dorn, Tamino Hirsch, Clemens Ehm, Dietmar Stephan, Dimitrios Vassiliadis)....Pages 946-955
 ACDC: The Admixture Controlled Digital Casting and Its Application to Thin Folded Concrete Structures  (Anna Szabo, Lex Reiter, Ena Lloret-Fritschi, Timothy Wangler, Fabio Gramazio, Matthias Kohler et al.)....Pages 956-966
 Robot-Controlled Fabrication of Sprayed Concrete Elements as a Cyber-Physical-System  (Ilija Vukorep, Gregor Zimmermann, Tino Sablotny)....Pages 967-977
 Reinforced Particle-Bed Printing by Combination of the Selective Paste Intrusion Method with Wire and Arc Additive Manufacturing – A First Feasibility Study  (Daniel Weger, Daniel Baier, Alexander Straßer, Sophia Prottung, Thomas Kränkel, Andreas Bachmann et al.)....Pages 978-987
 Knitting Concrete  (Helena Westerlind, José Hernández)....Pages 988-997
 Concrete 3D Printing: System Development, Process Planning and Experimental Results  (Yu Wang, Shuaishuai Li, Tian Qin, Ying Yu, Jianzhuang Xiao)....Pages 998-1010
 Shape Accuracy Evaluation of Geopolymer Specimens Made Using Particle-Bed 3D Printing  (Ming Xia, Behzad Nematollahi, Jay Sanjayan)....Pages 1011-1019
Front Matter ....Pages 1021-1021
 Environmental Impacts of 6-Axes Robotic Arm for 3D Concrete Printing  (Kateryna Kuzmenko, Adélaïde Feraille, Olivier Baverel, Nicolas Roussel)....Pages 1023-1030
 Preliminary Productivity Analysis of Conventional, Precast and 3D Printing Production Techniques for Concrete Columns with Simple Geometry  (Raitis Pekuss, Borja García de Soto)....Pages 1031-1050
 Preliminary Study of the Implications of 3D Printing on the Construction Supply Chain  (Ayyagari Ramani, Borja Garcia de Soto)....Pages 1051-1063
Front Matter ....Pages 1065-1065
 Fast Complexity: Additive Manufacturing for Prefabricated Concrete Slabs  (Ana Anton, Andrei Jipa, Lex Reiter, Benjamin Dillenburger)....Pages 1067-1077
 Architectonic Explorations of the Possibilities of 3D Concrete Printing: The Historic Building Fragment as Inspiration for New Applications with 3D Concrete Printing in Architecture  (Juliette Bekkering, Barbara Kuit, Alessia Biffi, Zeeshan Yunus Ahmed)....Pages 1078-1090
 A Robust Mortar and Printing System  (J. Blaakmeer, B. Lobo)....Pages 1091-1103
 Design and Fabrication of a Non-standard, Structural Concrete Column Using Eggshell: Ultra-Thin, 3D Printed Formwork  (Joris Burger, Ena Lloret-Fritschi, Nizar Taha, Fabio Scotto, Thibault Demoulin, Jaime Mata-Falcón et al.)....Pages 1104-1115
 Complex Architecture in Printed Concrete: The Case of the Innsbruck University 350th Anniversary Pavilion COHESION  (G. Grasser, L. Pammer, H. Köll, E. Werner, F. P. Bos)....Pages 1116-1127
 Shotcrete 3D Printing Technology for the Fabrication of Slender Fully Reinforced Freeform Concrete Elements with High Surface Quality: A Real-Scale Demonstrator  (Norman Hack, Harald Kloft)....Pages 1128-1137
 UHPFRC Pavilion of 3-Dimentional Pentagon Tiling  (Sung-Gul Hong, John Juhyung Chun, Sung-Hoon Kang, Minsoo Kim)....Pages 1138-1146
 Field Considerations for Deploying Additive Construction  (Eric Kreiger, Brandy Diggs-McGee, Tanner Wood, Bruce MacAllister, Megan Kreiger)....Pages 1147-1163
 Sustainable Reinforced Concrete Beams: Mechanical Optimisation and 3D-Printed Formwork  (Sébastien Maitenaz, Romain Mesnil, Paul Onfroy, Nicolas Metge, Jean-François Caron)....Pages 1164-1173
 Thermal and Sound Insulation of Large-Scale 3D Extrusion Printing Wall Panel  (Lapyote Prasittisopin, Kittisak Pongpaisanseree, Patiphat Jiramarootapong, Chalermwut Snguanyat)....Pages 1174-1182
Back Matter ....Pages 1183-1187