PaintSquare.com
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

PaintSquare


Coatings Industry News

Main News Page


Study Eyes Fungus for Concrete Self-Repair

Tuesday, August 29, 2017

Comment | More

Researchers at Rutgers University believe they’ve found a useful fix for cracking concrete that could prevent major problems before they start—and it comes in the form of a fungus.

Ning Zhang, a professor in the Rutgers Department of Plant Biology, and a team of researchers set out to find a way to fill small cracks in concrete before they develop into larger fissures; their work centered on a bio-based approach that would fill the cracks with calcium carbonate, which has shown promise in concrete repair.

The Idea Mushrooms

The approach they settled on involves a fungus called Trichoderma reesei. The fungus produces calcium carbonate and, the team says, can live under the highly alkaline conditions that deteriorating concrete can produce (via the leaching of calcium hydroxide).

Fungus research slides
arxhiv.org

Ning Zhang and her fellow researchers see promise in using the fungus Trichoderma reesei to help concrete to repair itself.

If T. reesei spores can be mixed into concrete when it’s first created—and if the spores survive the process—Zhang’s team believes their power can be unleashed when concrete first begins to break down. When small cracks begin to form in concrete that was formulated with the spores, the spores will, according to the theory, begin to grow, given the new moisture exposure.

The growing fungus will then product the calcium carbonate that will shore up the cracks, preventing them from growing.

Spores Amid the Pores

The biggest hitch, the team notes, is that the researchers haven’t yet determined whether the T. reesei spores will be able to survive their incorporation into a concrete mix. The researchers found that the spores are generally about 4 micrometers in diameter, while pores in concrete are much smaller—about 1 micrometer—meaning the spores might not survive the setting of the concrete.

According to the MIT Technology Review, Zhang’s team is looking at incorporating air bubbles into the mixture so that the spores survive, but that method has not been fully tested yet.

The researchers published their work online at arxiv.org, an open-source research publishing platform.

   

Tagged categories: Colleges and Universities; concrete; Research

Comment from Tom Schwerdt, (8/29/2017, 8:32 AM)

Until the hypothesis is tested by mixing the spores into actual concrete and cracking it to determine whether repair happens - the premise is entirely speculative.


Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Fischer Technology Inc.
 
NEW PROBE FOR MEASURING TSA THICKNESS
 
Paired with the PHASCOPE PMP10, Fischer’s new probe is quick and accurate for measuring thermally sprayed aluminum on stainless steel. Click to learn more.
 

 
HoldTight Solutions Inc.
 
NO FLASH RUST - NO CONTAMINANTS
 
Our HoldTight®102 salt remover & flash rust
preventer prevents flash
rust by removing surface contaminants. Contact us
for your nearest distributor.
(800) 319.8802 sales@holdtight.com
 

 
SABRE Autonomous Solutions
 
Productivity
 
Personnel are free to do other tasks while the ALPHA1 does the “dirty work”.
 

 
Tarps manufacturing, Inc.
 
QUALITY MADE IN AMERICA —Available near you!
 
CLICK to get a behind-the-scenes look at how Tarps Manufacturing makes the highest-quality tarps right here in the USA — available nationwide.
 

 
DeFelsko Corporation
 
PosiTector SHD Shore Hardness Durometer
 
PosiTector SHD measures the hardness of non-metallic materials. Features a measurement timer, auto ignore mode and internal memory. Shore A or D available.
 

 
W Abrasives
 
New blast suction and recycling system!
 
Phenics systems, made by W Abrasives, is a new way to transform traditional site blasting by enabling recovery and recycling of steel grit.
 

 
PPG Protective and Marine Coatings Group
 
We Protect and Beautify the World
 
PPG is widely recognized as a world leader in protective and marine coatings, developing innovative, cutting-edge products and services.
 

 
KTA-Tator, Inc. - Corporate Office
 
KTA-Tator EH&S Services
 
• Ambient & Worker Exposure Air Monitoring
• Safety & Health Program Development
• Lead Paint Assessments
& Specifications
• Health Hazard & Jobsite Safety Assessments
Call 1-800-532-3633
 

 
Polygon
 
POLYGON - Temporary Humidity Control
 
We specialize in innovative climate control solutions for industrial painting, utilizing alternative energy sources and combining desiccants with heating or cooling.
 

 
BASF
 
New resins from BASF will have metals loving water!
 
Excellent corrosion resistance, low VOC, high gloss, thin films www.basf.us/industrialcoatings dpsolutions@basf.com 800-231-7868
 

 
 
 

Technology Publishing Co., 1501 Reedsdale Street, Suite 2008, Pittsburgh, PA 15233

TEL 1-412-431-8300  • FAX  1-412-431-5428  •  EMAIL webmaster@paintsquare.com


The Technology Publishing Network

Durability + Design PaintSquare the Journal of Protective Coatings & Linings Paint BidTracker

 
EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About PaintSquare.com   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us