The Michigan Engineer News Center

Professor Li in Hour Detroit magazine

Hour Detroit magazine interviewed Professor Victor Li on the self-healing concrete his lab developed. | Short Read

The article included a quote from Popular Mechanics which stated that in the next 110 years bridges will repair themselves thanks to Li’s engineered cementitious composite (ECC) or “self-healing concrete.”

Li told Hour Detroit that self-healing concrete is several times more expensive than regular concrete “but commercial optimization could bring the cost down.” Li explained it would make economic sense in the long run to use ECC because infrastructures that can repair themselves are more sustainable and require less maintenance than regular infrastructures.

Emily Herbert, a Rackham RMF Fellow, participated in this research. The research has been sponsored by the National Science Foundation.

The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read