A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity

Addressing global warming through the modernization of buildings and urban areas is a major challenge. Passive daytime radiative cooling (PDRC) materials offer potential solutions, but none have effectively replaced concrete's dominant role in urban environments. Here, a Roman-inspired concrete with PDRC capabilities is presented, combining high solar reflectance (≈0.95) and long-wave infrared (LWIR) emittance (≈0.91). It delivers cooling powers over 45 W m<sup>-</sup> <sup>2</sup> under average solar intensities of 850 W m<sup>-</sup> <sup>2</sup> without a convection shield. On hot days (above 30°C), it stays 2°C cooler than the surrounding air under solar irradiance up to 985 W m<sup>-</sup> <sup>2</sup>. Simulations predict this concrete can reduce energy use and CO<sub>2</sub> emissions by ≈50% in hot regions and lower urban surface temperatures by up to 10°C during heat waves. This breakthrough offers a cheap, scalable and sustainable solution for energy efficiency and climate resilience.

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Publication Details

Journal
Advanced Science
Published
2025-09-12
DOI
https://doi.org/10.1002/advs.202511691
Citations
2
Primary Topic
Thermal Radiation and Cooling Technologies
Type
article
Field-Weighted Citation Impact
1.91
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article

A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity

Ridwan O. Agbaoye, Achutha Prabhu, Nicole Van Lipzig, Nick Adams et al.
2 citations
Advanced Science
Thermal Radiation and Cooling Technologies
1.91
article

A Modern Roman‐Inspired Concrete with Daytime Radiative Cooling Capacity

Ridwan O. Agbaoye, Achutha Prabhu, Nicole Van Lipzig, Nick Adams, Laura Carlosena, Jorge S. Dolado, Alicia E. Torres‐García, G Goracci, Karen Allacker, Miguel Beruete, J. A. Ibáñez, Ghizlane Moutaoukil
article en
2 citations

Abstract

Addressing global warming through the modernization of buildings and urban areas is a major challenge. Passive daytime radiative cooling (PDRC) materials offer potential solutions, but none have effectively replaced concrete's dominant role in urban environments. Here, a Roman-inspired concrete with PDRC capabilities is presented, combining high solar reflectance (≈0.95) and long-wave infrared (LWIR) emittance (≈0.91). It delivers cooling powers over 45 W m<sup>-</sup> <sup>2</sup> under average solar intensities of 850 W m<sup>-</sup> <sup>2</sup> without a convection shield. On hot days (above 30°C), it stays 2°C cooler than the surrounding air under solar irradiance up to 985 W m<sup>-</sup> <sup>2</sup>. Simulations predict this concrete can reduce energy use and CO<sub>2</sub> emissions by ≈50% in hot regions and lower urban surface temperatures by up to 10°C during heat waves. This breakthrough offers a cheap, scalable and sustainable solution for energy efficiency and climate resilience.

Advanced ScienceVol. 12(47)
Universidad Pública de Navarra (UPNA) (ES), Euskadiko Parke Teknologikoa (ES), GAIKER Technology Centre (ES), Association of Electronic and Information Technologies (ES), Material Physics Center (ES), Donostia International Physics Center (ES), Universidad de Navarra (ES), KU Leuven (BE)
Openalex Percentile: Top 13%
Thermal Radiation and Cooling Technologies
1.91
DOIOpen Access PDFOpenAlex
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