Since its invention several millennia ago, concrete has become instrumental to the advancement of civilization, finding use in countless construction applications — from bridges to buildings. And yet, despite centuries of innovation, its function has remained primarily structural. A multiyear effort by MIT Concrete Sustainability Hub (CSHub) researchers, in collaboration with the French National Center for Scientific Research (CNRS), has aimed to change that. Their collaboration promises to make concrete more sustainable by adding novel functionalities — namely, electron conductivity. Electron conductivity would permit the use of concrete for a…