Living Concrete Repairs Itself
Cracked, ruined concrete is everywhere in America and around the world. But Henk Jonkers has a better idea - self-healing concrete that's alive.
(Living concrete is self-repairing)
What he did find is a kind of bacteria that lies dormant until activated by water. Water is exactly what causes many concrete structures to crack further after they've suffered an initial abrasion—the water gets in, freezes, and expands. The idea is that the bacteria put a stop to that.
The bacillus bacteria comes out of its spore hibernation when activated by water and thrives in the concrete environment. They're stored in a small plastic bubble along with calcium lactate, which is mixed in with the concrete. When cracks form and water gets in, it melts the plastic shell, exposing the bacteria to the water. The microorganisms come out of dormancy and feed on the calcium lactate, producing limestone inside the concrete.
SF fans were treated to a very early description of self-healing materials in the 1951 story Asteroid of Fear, by Golden Age great Raymond Z. Gallun. Consider this unique plastic that can repair itself:
But the wide roof was all the way up, now—intact. It made a great, squarish bubble, the skin of which [a 'transparent, wire-strengthened plastic '] was specially treated to stop the hard and dangerous part of the ultra-violet rays of the sun, and also the lethal portion of the cosmic rays. It even had an inter-skin layer of gum that could seal the punctures that grain-of-sand-sized meteors might make.
(Read more about self-healing plastic)
Also, J.G. Ballard described a bendable, self-healing material in his 1962 short story The Thousand Dreams of Stellavista. Ballard wrote about plastex.
Via Popular Mechanics.
Scroll down for more stories in the same category. (Story submitted 6/7/2015)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Vantablack Now IMMEASURABLY Black
'a black coating now that’s ninety-nine percent absorptive...' - Doc Smith, 1934.
New Paper - Write With Light Erase With Heat
Writing with light, erasing with heat.
Reconfigured Graphene 10X Strong, 5 Percent Dense, As Steel
'...It was made of Alohydrolium, which is the lightest of all metals.' - Hugo Gernsback, 1911.
MIT's aeroMorph Technology
'... It falls into that structure like a rubber figure returning to shape.' - Samuel R. Delany, 1966.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Bat Bot Robotic Flapping-Wing Drone
'The dark birdforms dotted the mountaintops like statues of prehistoric beasts, wings outspread...'
NASA's Astronaut Rescue Ball
'Ball and closely-prisoned man plummeted downward..'
ARM Wants To Build Brain Chips
'Slivers of microsoft, angular fragments of colored silicon...'
Sky Fence - A Drone-Proof Shield Created Over Prison
'There’s still a protective field over the whole thing. It volatilizes anything that tries to get through.'
Geoengineering The Atmosphere For Climate Change
'...a uniform temperature for each degree of latitude the year round.'
Archinaut Orbiting Robotic Factory
'mass-produced only in the orbiting factories...'
Cryonic Preservation - The Last Perk You'll Ever Need
'Is there not also a law providing for voluntary suspension of animation?'
Computers Understand Humans By Watching And Modeling Them
Soon, your computer will be watching you... and judging you.
NASA Asks For Moon To Earth Delivery Ideas
'Authority's 3-g catapult was almost one hundred kilometers long...'
Musk Tunnels Wisely Restrict Drivers
Too many robots.
Robot Swarms Controlled With Augmented Reality
'You're not thinking in enough dimensions...'
MIT's C-LEARN Helps Robots Transfer Learning To Other Robots
'Talk Between Robots radio...'
Mini-Brains In A Dish
'Cultured brains on a slab.'
Rapid Automated Search For Habitable Planets Needed
'I was near enough it now to set my automatic astronomical instruments to searching it for a habitable planet.'
WatchSense Perfect For Fat-Fingered Smartwatch Owners
'Now all you had to do was wave your hand in the general direction of the components...'
Digital Construction Platform Robot 3D Prints A Building
'It extrudes material like a spider.'
More SF in the News Stories
More Beyond Technovelgy science news stories