PSI - Issue 67

ScienceDirect Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000 – 000 Available online at www.sciencedirect.com Procedia Structural Integrity 67 (2025) 30–38

www.elsevier.com/locate/procedia

www.elsevier.com/locate/procedia

International Symposium on Nanotechnology in Construction Materials NICOM8 Sustainable urban heat island mitigation with carbonated aggregate based cement composites G. Goracci a,* , E. Saeed a,b , M. B. Ogundiran a,c , C. Aymonier b and J. S. Dolado a,d a Centro de Física de Materiales, CSIC-UPV/EHU, P. Manuel de Lardizábal 5, 20018 San Sebastián, Spain b University of Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France c Analytical/Environmental Unit, Department of Chemistry, Faculty of Science, University of Ibadan, Nigeria 4 Donostia International Physics Center, P. Manuel de Lardizabal 4,San Sebastián, Spain Abstract The rapid increase in atmospheric CO 2 levels, predominantly resulting from anthropogenic activities, constitutes a significant challenge due to its critical role in driving climate change. Major CO 2 emitters include the steel and cement industries, with Portland cement production alone responsible for approximately 0.98 tonnes of CO 2 per tonne of clinker produced. This study addresses CO 2 emissions from these industries through a multifaceted approach that combines direct emissions reduction, advanced CO 2 capture technologies, and Urban Heat Island (UHI) mitigation strategies. This methodology employs by-products from the food and steel industries as agents for carbon capture and storage (CCS) through mineral carbonation. These carbonated by-products are subsequently transformed into cementitious materials exhibiting high solar reflectivity, specifically designed for urban infrastructure applications. These materials are intended to mitigate the UHI effect, thereby resulting in lower urban temperatures and reduced energy consumption for air conditioning. Enhanced urban livability and public health benefits have been observed, characterized by a reduced incidence of heat-related illnesses. In conclusion, the holistic strategy of utilizing industrial waste for CO 2 sequestration and developing cool cements presents a promising pathway to combat climate change. This approach not only addresses CO 2 emissions but also promotes sustainable urban environments and supports a circular economy. International Symposium on Nanotechnology in Construction Materials NICOM8 Sustainable urban heat island mitigation with carbonated aggregate based cement composites G. Goracci a,* , E. Saeed a,b , M. B. Ogundiran a,c , C. Aymonier b and J. S. Dolado a,d a Centro de Física de Materiales, CSIC-UPV/EHU, P. Manuel de Lardizábal 5, 20018 San Sebastián, Spain b University of Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, F-33600 Pessac, France c Analytical/Environmental Unit, Department of Chemistry, Faculty of Science, University of Ibadan, Nigeria 4 Donostia International Physics Center, P. Manuel de Lardizabal 4,San Sebastián, Spain Abstract The rapid increase in atmospheric CO 2 levels, predominantly resulting from anthropogenic activities, constitutes a significant challenge due to its critical role in driving climate change. Major CO 2 emitters include the steel and cement industries, with Portland cement production alone responsible for approximately 0.98 tonnes of CO 2 per tonne of clinker produced. This study addresses CO 2 emissions from these industries through a multifaceted approach that combines direct emissions reduction, advanced CO 2 capture technologies, and Urban Heat Island (UHI) mitigation strategies. This methodology employs by-products from the food and steel industries as agents for carbon capture and storage (CCS) through mineral carbonation. These carbonated by-products are subsequently transformed into cementitious materials exhibiting high solar reflectivity, specifically designed for urban infrastructure applications. These materials are intended to mitigate the UHI effect, thereby resulting in lower urban temperatures and reduced energy consumption for air conditioning. Enhanced urban livability and public health benefits have been observed, characterized by a reduced incidence of heat-related illnesses. In conclusion, the holistic strategy of utilizing industrial waste for CO 2 sequestration and developing cool cements presents a promising pathway to combat climate change. This approach not only addresses CO 2 emissions but also promotes sustainable urban environments and supports a circular economy. Keywords: Climate Change Mitigation; Urban Heat Island (UHI) Effect; Carbon Capture and Storage (CCS); Sustainable Construction; Carbonated Cement © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of NICOM8 Chairpersons Keywords: Climate Change Mitigation; Urban Heat Island (UHI) Effect; Carbon Capture and Storage (CCS); Sustainable Construction; Carbonated Cement

* Guido Goracci. Tel.: +34 943 01 8769 E-mail address: guido.goracci@ehu.eus

* Guido Goracci. Tel.: +34 943 01 8769 E-mail address: guido.goracci@ehu.eus

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of NICOM8 Chairpersons 10.1016/j.prostr.2025.06.005 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of NICOM8 Chairpersons 2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of NICOM8 Chairpersons