Cool concrete incorporating carbonated Periwinkle Shell: a sustainable solution for mitigating urban heat island effects
SAEED, Ebtisam
Centro de Fisica de Materiales [CFM]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Centro de Fisica de Materiales [CFM]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
SAEED, Ebtisam
Centro de Fisica de Materiales [CFM]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Reduce
Centro de Fisica de Materiales [CFM]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
ACS Sustainable Chemistry & Engineering. 2024, vol. 12, n° 5, p. 1911-1917
American Chemical Society
English Abstract
The urban heat island effect has become a critical issue in urban areas, intensifying heat-related problems and increasing energy consumption. A sustainable cement formulation that combines ordinary Portland cement (OPC) ...Read more >
The urban heat island effect has become a critical issue in urban areas, intensifying heat-related problems and increasing energy consumption. A sustainable cement formulation that combines ordinary Portland cement (OPC) with a carbonated aggregate derived from Periwinkle shell powder for the development of an efficient cool material is presented. Through a carbonation process, the aggregate undergoes a transformation, capturing carbon dioxide (CO2) and converting it into calcite. The resulting cement mixture exhibits high solar reflective properties, making it a potential candidate for cool pavement and roof applications. In this study, the raw materials, including the Periwinkle shell powder, were characterized, and the carbonation process was evaluated to quantify the CO2 capture efficiency. Additionally, a real test of the efficiency of this new cement on a roof demonstrated that the material achieved a significant cooling effect, being 6 °C cooler than that with standard OPC at the peak of solar radiation.Read less <
English Keywords
Calcite
Carbon capture and storage
Materials
Optical properties
Oxides
Urban heat island
Carbon capture
Cool material
Carbonated aggregates
Recycled aggregates
Cementitious material
Origin
Hal imported