Underwater 3D printing of cement-based mortar

Abstract Nowadays, the development of renewable marine energies and needs for coastal protection to face global warming issues goes simultaneously with the fast development of digitally based construction methods such as concrete 3D printing. This creates the conditions to change the coastal and off-shore construction methods. Therefore in this study, we assess the possibility to design an underwater 3D printing materials. This possibility needs to develop cement-based materials that are simultaneously printable (pumpability, fast structuring) and also resistant to water washing out. After a mix design protocol that complies with the rheological requirements of the concrete and its water anti-washout properties (through permeability measurements), 3D printed samples has been fabricated in air and underwater. Then, the compressive strength of hardened printed mortar has been measured in order to validate the concept of the process.

[1]  Nicolas Roussel,et al.  A thixotropy model for fresh fluid concretes: Theory, validation and applications , 2006 .

[2]  Olivier Coussy,et al.  Bleeding of concrete as an ageing consolidation process , 2006 .

[3]  Sofiane Amziane.  Setting time determination of cementitious materials based on measurements of the hydraulic pressure variations , 2006 .

[4]  Clément Gosselin,et al.  Large-scale 3D printing of ultra-high performance concrete – a new processing route for architects and builders , 2016 .

[5]  R. Flatt,et al.  Yield Stress of Multimodal Powder Suspensions: An Extension of the YODEL (Yield Stress mODEL) , 2007 .

[6]  Nicolas Roussel,et al.  Yield stress and bleeding of fresh cement pastes , 2012 .

[7]  N. Roussel,et al.  The heterogeneous nature of bleeding in cement pastes , 2017 .

[8]  Robert J. Flatt,et al.  Yield Stress During Setting of Cement Pastes From Penetration Tests , 2009 .

[9]  Y. Mélinge,et al.  Hydro-mechanical properties of fresh cement pastes containing polycarboxylate superplasticizer , 2013 .

[10]  Zhihui Sun,et al.  Rheological Method to Evaluate Structural Buildup in Self-Consolidating Concrete Cement Pastes , 2007 .

[11]  Nicolas Roussel,et al.  Rheological requirements for printable concretes , 2018, Cement and Concrete Research.

[12]  Freek Bos,et al.  Additive manufacturing of concrete in construction: potentials and challenges of 3D concrete printing , 2016, International Journal of Civil Engineering and Construction.

[13]  Behrokh Khoshnevis,et al.  Automated construction by contour craftingrelated robotics and information technologies , 2004 .

[14]  Sofiane Amziane,et al.  SCC Formwork Pressure: Influence of Steel Rebars , 2009 .

[15]  N. Roussel,et al.  Distinct-layer casting of SCC: The mechanical consequences of thixotropy , 2008 .

[16]  D. Rangeard,et al.  Effect of coarse particle volume fraction on the hydraulic conductivity of fresh cement based material , 2015 .

[17]  Nicolas Roussel,et al.  Digital Concrete: Opportunities and Challenges , 2016 .

[18]  Eric Courteille,et al.  3D printing of earth-based materials: Processing aspects , 2018 .

[19]  Philippe Coussot,et al.  Steady state flow of cement suspensions: A micromechanical state of the art , 2010 .

[20]  Jay G. Sanjayan,et al.  Current progress of 3D concrete printing technologies , 2017 .

[21]  D. Rangeard,et al.  Permeability measurement of fresh cement paste , 2011 .

[22]  J. Assaad,et al.  Mechanisms of strength loss in underwater concrete , 2013 .

[23]  Richard A. Buswell,et al.  Developments in construction-scale additive manufacturing processes , 2012 .

[24]  Nicolas Roussel,et al.  A Physical Model for the Prediction of Lateral Stress Exerted by Self-Compacting Concrete on Formwork , 2005 .

[25]  L. Struble,et al.  Modeling Static Segregation of Self-Consolidating Concrete , 2009 .

[26]  Nicolas Roussel,et al.  Steady and transient flow behaviour of fresh cement pastes , 2005 .

[27]  Christoph Gehlen,et al.  Effect of Cement on Superplasticizer Adsorption, Yield Stress, Thixotropy and Segregation Resistance , 2010 .

[28]  Fabio Gramazio,et al.  Complex concrete structures: Merging existing casting techniques with digital fabrication , 2015, Comput. Aided Des..

[29]  Nicolas Roussel,et al.  Effect of Coarse Particle Volume Fraction on the Yield Stress and Thixotropy of Cementitious Materials , 2008 .

[30]  Kamal H. Khayat,et al.  Viscosity-enhancing admixtures for cement-based materials — An overview , 1998 .

[31]  B. Panda,et al.  Measurement of tensile bond strength of 3D printed geopolymer mortar , 2018 .

[32]  David A Lange,et al.  Field validation of models for predicting lateral form pressure exerted by SCC , 2014 .

[33]  A. Gibb,et al.  Freeform Construction: Mega-scale Rapid Manufacturing for construction , 2007 .

[34]  Arnaud Perrot,et al.  Non-linear modeling of yield stress increase due to SCC structural build-up at rest , 2017 .

[35]  Mohammed Sonebi,et al.  Effect of Mixture Composition on Washout Resistance of Highly Flowable Underwater Concrete , 2001 .

[36]  Behrokh Khoshnevis,et al.  Mega-scale fabrication by Contour Crafting , 2006 .

[37]  T. T. Le,et al.  Mix design and fresh properties for high-performance printing concrete , 2012 .

[38]  Nicolas Roussel,et al.  The origins of thixotropy of fresh cement pastes , 2012 .

[39]  Damien Rangeard,et al.  Structural built-up of cement-based materials used for 3D-printing extrusion techniques , 2016 .

[40]  Sofiane Amziane,et al.  The plate test carried out on fresh cement-based materials:How and why? , 2017 .

[41]  A. Perrot,et al.  Cellulose ethers and cement paste permeability , 2015 .

[42]  Sofiane Amziane,et al.  A new look at the measurement of cementitious paste setting by Vicat test , 2010 .

[43]  R. Flatt,et al.  Yodel: A Yield Stress Model for Suspensions , 2006 .

[44]  K. Khayat,et al.  Effect of Mixture Composition on Relative Strength of Highly Flowable Underwater Concrete , 2001 .

[45]  P. Marchal,et al.  Cellulose ethers influence on water retention and consistency in cement-based mortars , 2011 .

[46]  Vincent Picandet,et al.  Prediction of lateral form pressure exerted by concrete at low casting rates , 2015 .

[47]  Freek Bos,et al.  3D Printing Concrete with Reinforcement , 2017 .

[48]  Sofiane Amziane,et al.  Cementitious Paste Setting Using Rheological and Pressure Measurements , 2007 .