Fungi-Infused Concrete Repairs Itself

Right now, one of the big stories coming out of the Detroit area is that of aging bridges that are slowly dropping pieces onto passing motorists.

A new kind of self-healing concrete is under development at Binghamton University, State University of New York, could help repair cracks in aging concrete permanently.


(Fungi concrete heals itself video>)

Binghamton University assistant professor Congrui Jin has been working on this problem since 2013, and recently published her paper “Interactions of fungi with concrete: significant importance for bio-based self-healing concrete” in the academic journal Construction & Building Materials.

Jin’s studies have looked specifically at concrete and found that the problem stems from the smallest of cracks in the concrete.

“Without proper treatment, cracks tend to progress further and eventually require costly repair,” said Jin. “If micro-cracks expand and reach the steel reinforcement, not only the concrete will be attacked, but also the reinforcement will be corroded, as it is exposed to water, oxygen, possibly CO2 and chlorides, leading to structural failure.”

The team found an unusual answer, a fungus called Trichoderma reesei.

When this fungus is mixed with concrete, it originally lies dormant — until the first crack appears.

“The fungal spores, together with nutrients, will be placed into the concrete matrix during the mixing process. When cracking occurs, water and oxygen will find their way in. With enough water and oxygen, the dormant fungal spores will germinate, grow and precipitate calcium carbonate to heal the cracks,” explained Jin.

“When the cracks are completely filled and ultimately no more water or oxygen can enter inside, the fungi will again form spores. As the environmental conditions become favorable in later stages, the spores could be wakened again.”

SF writer J.G. Ballard wrote about self-healing buildings with plastex walls in his 1962 short story The Thousand Dreams of Stellavista:

It was a beautiful room all right, with opaque plastex walls and white fluo-glass ceiling, but something terrible had happened there. As it responded to me, the ceiling lifting slightly and the walls growing less opaque, reflecting my perspective-seeking eye, I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.

I think that this idea had been thought of before, but with bacteria; see Outdoor Testing For Self-Healing Concrete.

Via Binghamton press release.

Scroll down for more stories in the same category. (Story submitted 1/14/2018)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Material ")

'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...' - Edgar Rice Burroughs, 1929.

Self-Healing Material Pulls Carbon Out Of The Air
'... could seal the punctures.' - Raymond Z. Gallun, 1951.

Shapeshifting Materials Transform By Light
'Its lines wavered, flowed, and then painfully reformed.'- Philip K. Dick, 1957.

Superstrong Multilayer Metal-Graphene Composite Material
Negligible increase in weight increased material strength by hundreds of times.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

'Metallic Wood' Strong Like Titanium, Floats In Water
'A metal... light as cork and stronger than steel...'

Seabreacher, H.G. Winter's 1939 Torpoon
'Ken lay full-length in the padded body compartment, his feet resting on the controlling bars of the directional planes, hands on the torpoon's engine levers.'

Abundant Robotics Autonomous Apple Harvester Robot
'... little machines, that went from plant to plant... cutting off the ripe fruit.'

Charging An Electric Car In 2019 (Video), 1912 (Photo) And 1894 (Fiction)
'Recharge the batteries... in almost every town and village...'

Japan Uses Explosives On Asteroid
'...a tiny, rocket-powered projectile, drove towards the mysterious bulk. It hit, exploding into a cloud of incandescent vapour.'

Get Your Speeder Flying Motorcycle From Jetpack Aviation
'The flycycles were miracles of compact design.'

FLIR Black Hornet 3 Palm-sized Drone
These drones can provide situational awareness beyond visual line-of-sight capability.

Dockworkers Protest Driverless Trucks
'It resembled conventional human-operated transportation vehicles, but with one exception -- there was no driver's cabin.'

Flying Car Concept By Kash Sirinanda
'Each one consists of a hub with many tiny spokes... On the end is a squat foot, rubber tread on the bottom...'

Unfurl The Future! Huawei Mate X versus Galaxy Fold
'A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid.'

Amazon Echo And Google Home Should Have Morality Software
'The Dwoskin Morality Rating-Computer could 'spot the slightest tendency to deviation' from the social norm...'

China Building Robot Wives
'Want a life-companion, a pleasant one?'

China Social Credit System Like State-Run Whuffie
'At least there was no mandatory Whuffie check on the monorail platform...'

Project Soli Radar Gesture Chip Now FCC Approved
'He waved his hand and the circuit switched abruptly.'

Stan, Robot Valet, Will Drag Your Car Away
'He activated the grapple tracks. '

Jibo Home Robot Says Goodbye, Is Killswitched
'It resembles an oyster....'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.