Cambridge researchers developing self-healing concrete

KDM Communications/Dolomite Microfluidics
December 10, 2018
By KDM Communications/Dolomite Microfluidics
Dr. Livia Ribeiro de Souza
Dr. Livia Ribeiro de Souza
Researchers at the University of Cambridge are using microencapsulation technologies developed by Dolomite Microfluidics to develop self-healing construction materials.

As highlighted in recent BBC News broadcasts, the Department of Engineering’s Geotechnical and Environmental Research Group is developing microcapsules containing ‘healing’ agents – such as minerals, epoxy or polyurethane – which can be added to building materials to allow self-repair of small cracks which develop over time.

Dr. Livia Ribeiro de Souza, a postdoctoral researcher in the group, explained, “Many composite building materials used in the construction industry – such as concrete – suffer fatigue over time, developing small cracks. We are hoping to overcome this problem by adding microcapsules filled with ‘healing’ agents to the concrete before it is used. The idea is that, as cracks begin to form, they rupture the microcapsules, releasing their payload and stabilizing the material.
“This approach requires the formation and functionalization of double emulsion microcapsules, which we have been producing with the help of microfluidics. We have been using a Dolomite Microfluidics system since 2014, and find that microfluidics offers much better control of particle size and composition than traditional emulsification polymerization techniques, simplifying the investigation and optimization of particle properties.”

The Dolomite system has enabled the researchers to create functionalized microcapsules that bind more strongly to the cement matrix, while also having thinner shell walls and higher core retention, improving their self-healing properties.

“It is good to be able to discuss any issues we’re having with the experts at Dolomite Microfluidics, helping to accelerate our research and move us a step closer to real world applications,” Livia said.

For more information, visit www.dolomite-microfluidics.com.

About Dolomite Microfluidics
Established in 2005, Dolomite Microfluidics has grown to be the world leader in the design and manufacture of high quality innovative microfluidic products. The company offers a range of microfluidic systems, components and specialist chemicals – including pumps, chips, connectors, temperature controllers, sensors, accessories and custom-made components – as well as software for analysis or automation. Modularity, ease of use, innovation and scalability are common to all Dolomite Microfluidics products, which are used across a broad range of applications in biology, drug discovery, chemistry, food, cosmetics and academia. Dolomite is a part of the Blacktrace group of companies, a world leader in Productizing Science, and has offices in the USA, Japan, India , Brazil and Hanoi as well as a worldwide network of distributors.

Add comment


Security code
Refresh

Subscription Centre

 
New Subscription
 
Already a Subscriber
 
Customer Service
 
View Digital Magazine Renew

Most Popular

Latest Events

CRAC Conference 2019
June 5-8, 2019
CCA Fall Board Meeting
September 10-12, 2019

We are using cookies to give you the best experience on our website. By continuing to use the site, you agree to the use of cookies. To find out more, read our Privacy Policy.