Enhanced weathering of returned concrete: constraining CO2 uptake by carbonation for baseline vs intervention

Rémi Rateau¹, Ruadhán Magee¹, Ognjen Žurovec¹, Ciara Ní Mhaoldomhnaigh¹, Maurice Bryson¹, Frank McDermott²

¹Silicate Carbon Limited, NovaUCD, Dublin, Ireland.; ²University College Dublin, UCD School of Earth Sciences, Dublin, Ireland

UNDERSTANDING CALCIUM CARBONATE CRYSTALLIZATION PATHWAYS FOR CONCRETE RECYCLING

Mathilde Dehue¹, Valérie Magnin², Martine Lanson³, Moshen Ben Haha⁴, Maciej Zajac⁵, Alejandro Fernandez-Martinez⁶, Jean-Louis Hazemann⁷

¹ISTerre, France; ²ISTerre, France; ³ISTerre, France; ⁴HeidelbergMaterials; ⁵HeidelbergMaterials; ⁶ISTerre, France; ⁷NEEL, France

Effect of the composition of well-hydrated slag cement pastes on their reactivity as SCMs after enforced carbonation

Alisa Machner, Luis Schnürer

Technical University of Munich (TUM), Germany

Understanding how organic molecules control portlandite nucleation at the nanoscale

Annet Baken^1,2,3,4, Alexander E.S. Van Driessche⁵, Alejandro Fernandez-Martinez^2,3,4, Matthias Kellermeier⁶, Marco di Michiel¹, Martine Lanson^2,3

¹ESRF; ²ISTerre; ³Univ. Grenoble-Alpes; ⁴CNRS; ⁵IACT CSIC-UGR; ⁶BASF SE

Concrete carbon mixing: A potential CO2 sink

Marco Davolio¹, Stefano Gelain², Federico Furlani², Giovanni Muciaccia¹, Liberato Ferrara¹

¹Department of Civil and Environmental Engineering, Politecnico di Milano, Italy; ²Simem S.p.A.

pH-buffering limitations on aqueous carbonation of wollastonite

Prince Allah, Mirja Illikainen, Paivo Kinnunen, Priyadharshini Perumal

University of Oulu, Finland

Aqueous Carbonation of Recycled Concrete Fines: Towards Higher Efficiency

Yamei Cai, Yi Jiang, Peiliang Shen, Chi Sun Poon

The Hong Kong Polytechnic University, Hong Kong S.A.R. (China)

Progress of NEDO Moonshot Project “Calcium Carbonate Circulation System in Construction”

Takafumi Noguchi¹, Ippei Maruyama¹, Ryoma Kitagaki², Manabu Kanematsu³, Masaki Tamura⁴, Satoshi Fujimoto⁵, Masato Tsujino⁶, Haruo Nakazawa⁶, Yasuhiro Kuroda⁶, Hikotsugu Hyodo⁷, Hirohi Hirao⁷, Takayoshi Masuo⁸

¹The University of Tokyo, Japan; ²Hokkaido University, Japan; ³Tokyo University of Science, Japan; ⁴Kogakuin University, Japan; ⁵Utsunomiya University; ⁶Shimizu Corporation; ⁷Taiheiyo Cement; ⁸Masuo Recycle

Co reactive: Olivine Based CO2 Mineralization for Sustainable Supplementary Cementitious Materials

Andreas Bremen^1,2, Orlando Kleineberg^1,2, Jan Skylaruk^1,2

¹Process Systems Engineering (AVT.SVT), RWTH Aachen University, 52074 Aachen, Germany; ²Co-reactive GbR, 52074 Aachen, Germany

CO2 Mineralization of Red Mud: Effect of CO2 Pressure and Temperature

Saranyadevi Duraisamy, Piyush Chaunsali

Indian Institute of Technology Madras, India

Investigation of Sample Preparation and Quantification of CO2 Sequestered Recycled Concrete Aggregates

Alexander Oliva Rivera^1,2, Sumit Srivastava¹, Gry Møl Mortensen¹, Jan Suchorzewski¹, Placid Atongka Tchoffor¹, Katarina Malaga^1,2

¹RISE Research Institutes of Sweden, Dept. Infrastructure and Concrete Technology, Sweden; ²University of Borås, Dept. Resource Recovery and Building Technology, Sweden

Combined pozzolanic and hydraulic SCMs, the case of carbonated industrial waste

Veronica Caprai¹, Fabien Georget², Alberto Belli¹, Arno Keulen¹, Thomas Matschei²

¹CRH BV, Netherlands, The; ²Institute of Building Materials Research, RWTH Aachen University, Germany

Valorization of mineral waste through accelerated carbonation

Sophie Grigoletto¹, Armel Florent Kameni Wontcheu¹, Elise Aubry², Séverine Marquis³, Luc Courard¹

¹Urban and Environmental Engineering, University of Liège, Belgium; ²Carmeuse Europe S.A., Belgium; ³Centre Terre et Pierre, Belgium

carbonation of Portland cement and use of carbonated cement paste in Portland cement

Marie Singer¹, Lukas Deffner², Torben Gädt², Jürgen Neubauer¹, Daniel Jansen¹

¹Friedrich Alexander Universität Erlangen-Nürnberg, Germany; ²Technische Universität München, Germany

Determination of the CO2 sequestration potential of waste ashes by direct mineral carbonation treatment

Sara Tominc¹, Ivana Carević², Sonja Cerković², Eva Zimprich², Nina Štirmer², Gunvor M. Kirkelund³, Lisbeth M. Ottosen³, Sumankumar Adhikary⁴, Priyadharshini Perumal⁴, Boyu Chen⁵, Abdellah Hussein⁵, Guang Ye⁵, Vilma Ducman¹

¹Slovenian National Building and Civil Engineering Institute, Slovenia; ²University of Zagreb, Faculty of Civil Engineering, Croatia; ³Technical University of Denmark, Department of Environmental and Resource Engineering, Denmark; ⁴University of Oulu, Faculty of Technology, Fibre and Particle Engineering, Finland; ⁵Technical University of Delft, Faculty of Civil Engineering and Geosciences, The Netherlands

Carbonation of Mg(OH)2

Saskia Franke, Friedlinde Goetz-Neunhoeffer, Jürgen Neubauer

Friedrich-Alexander-Universität Erlangen-Nürnberg, Germany

The prospect of recalcification as a repair technique for carbonated cementitious material

Thinh Nguyen¹, Quoc Tri Phung², Norbert Maes², Geert De Schutter³, Özlem Cizer¹

¹KU Leuven, Belgium; ²SCKCEN, Belgium; ³Ghent University, Belgium