AGGREGATE | 2023
CAN WE GROW AGGREGATES FROM SEAWATER FOR USE IN CONCRETE AND OTHER CONSTRUCTION MATERIALS?
This project aims to develop a sustainable method for synthesizing aggregates (sand) from seawater using mild electrical stimulation, providing an alternative to the harmful practice of sourcing these valuable materials through mining from mountains, riverbeds, and beaches.
Although most of us barely even think about aggregates, we live in, travel on, communicate with, and surround ourselves with some forms or derivatives of aggregates. Whether to produce concrete and cement, glass, or computer chips, we are continuously mining aggregates from shorelines, lakes, and riverbeds, with tremendous environmental impacts responsible for a global sand crisis.
Meanwhile, we emit massive amounts of carbon dioxide via energy and industrial processes, transportation, and other activities, driving global warming. This project addresses the potentially disruptive approach of sustainably synthesizing aggregates of desired properties, sizes, and shapes from seawater while absorbing. In other words, it explores a carbon-negative approach to manufacturing aggregates in seawater.
Project team
 Alessandro F. Rotta Loria Associate Professor |
 Nishu Devi Post-doctoral Researcher |
 Daiki Shoji Ph.D. Student |
Project team
Alessandro F. Rotta Loria Associate Professor |
Nishu Devi Post-doctoral Researcher |
Daiki Shoji Ph.D. Student |
Journal publications
→ Devi, N., Wagner, A., Guerini, A., Zampini, D., Lopez, J. and Rotta Loria, A. F. (2023) Mechanistic insights into electrodeposition in seawater at variable electrochemical potentials. Advanced Sustainable Systems. Research featured as a cover image in the issue 4/2024.