Posted on 11/29/2021 10:14:17 PM PST by SunkenCiv
Engineers from South Korea have invented a cement-based composite that can be used in concrete to make structures that generate and store electricity through exposure to external mechanical energy sources like footsteps, wind, rain and waves.
By turning structures into power sources, the cement will crack the problem of the built environment consuming 40% of the world’s energy, they believe.
Building users need not worry about getting electrocuted. Tests showed that a 1% volume of conductive carbon fibres in a cement mixture was enough to give the cement the desired electrical properties without compromising structural performance, and the current generated was far lower than the maximum allowable level for the human body.
Researchers in mechanical and civil engineering from from Incheon National University, Kyung Hee University and Korea University developed a cement-based conductive composite (CBC) with carbon fibres that can also act as a triboelectric nanogenerator (TENG), a type of mechanical energy harvester.
They designed a lab-scale structure and a CBC-based capacitor using the developed material to test its energy harvesting and storage capabilities...
Apart from energy storage and harvesting, the material could also be used to design self-sensing systems that monitor the structural health and predict the remaining service life of concrete structures without any external power.
(Excerpt) Read more at globalconstructionreview.com ...
I found a research paper about this, and tried to download the abstract... [waits for it...]
If I generate someone electricity I EXPECT TO BE PAID.
Well, to make it generate electricity, you’d have to hit it...
When I hit it, sparks fly.
Stop chewing on the wiring, Laz.
Presumably you’ll save on taxes, if the electricity can be used to generate heat to melt the ice and snow and dry off the cement when it rains.
Well I was thinking of concrete statues that shock the living heck out of any rioter who tries do deface them or tear them down.
In the mid 60s dupont installed new carpet samples in the library.
The engineers watched the 4 inch static electricity arcs from newhire hands to the metal door rails
Usually they used the glass after that
Beat me to it. I was going to say that it sounded like a piezo-electric capacitor. Sort of a artificial crystal (in action, not in form)
LOL I bet that was a sight!
A very similar concept was tried in Tokyo, Japan, 20 years ago using mats in the subway train platforms. The idea was to pick up the energy of feet hitting the platform all day long.
Since most have never heard of that, we know how the experiment worked out. I expect this to go the same way.
“far lower than the maximum allowable”
Oooh, good idea! And the pigeons? GONE!
Wint-O-Green Lifesavers?
My pleasure.
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