Durability + Design
Follow us on Twitter Follow us on LinkedIn Like us on Facebook Follow us on Instagram Visit the TPC Store
Search the site

 

Advertisement

Durability + Design (D+D)


D+D News

Main News Page


No Pulp Fiction: Bricks of Paper Waste

Monday, January 28, 2013

More items for Building Envelope

Comment | More

It may sound unappetizing, but a novel mix of clay, sludge, paper waste and ceramics is producing a new kind of insulating brick that holds potentially significant economic and environmental benefits.

Researchers at the University of Jaen in Spain are developing the material, which reuses recycled cellulous waste from a paper factory and sludge from the purification of its waste water. The mixture is then combined with clay and a ceramic construction material, and passed through a pressure and extrusion machine.

Bricks made from paper waste
Images, video: SINC

Researchers at the University of Jaen explain their process, which uses paper waste and ceramic construction material to make economical, insulating bricks.

The process (think sausage or Play-Doh) produces bricks with low thermal conductivity that act as good insulators, according to a video demonstration of the process, developed at the Upper Polytechnic School of Linares.

"The use of paper industry waste could bring about economic and environmental benefits as it means that material considered as waste can be reused as raw material," researchers reported.

Their work, "Recovering wastes from the paper industry: Development of ceramic materials," has been published in Fuel Processing Technology.

"Adding waste means that the end product has low thermal conductivity and is therefore a good insulator," explains Carmen Martínez, researcher at the University of Jaen, in a release by the Spanish Foundation for Science and Technology (FECYT). "In addition to the resulting benefit of using these bricks instead of their traditional counterparts made of traditional raw materials."
 
University of Jaen bricks

The team's pressure and extrusion manufacturing process is something like making sausage, or squeezing out Play-Doh logs.

Adding waste to the brick prototypes means that they provide energy due to their organic material content, researchers say. That could help to reduce fuel consumption and kiln time required for brick production.
 
Brick by Brick
 
The prototype brick is small—just 3 x 1 x 6 cm. But the team has also successfully been testing larger bricks, reports say.
 
"On the whole, this technique could bring about a saving in energy and raw materials for brick factories along with environmental benefits from the use of waste that is initially discarded,"  said Martínez.
 
The chief drawback of the prototypes (their "Achilles heel," according to FECYT) is their lower mechanical resistance compared to traditional bricks, "although this parameter is above the legal minimum," the foundation reports.
University of Jaen bricks

Researchers are working to strengthen the bricks' mechanical resistance.

In addition, "there are still a few problems to solve in the adherence and shaping of those pieces that have high percentages of paper waste," the foundation reports.
 
The team is thus tweaking its recipe with other products, including residues from the beer, olive and biodiesel industries.
 
In a separate study, the same researchers have reported that biodiesel waste can be used for brick manufacture, thus increasing insulation capacity by 40 percent.

 
 
"Adding waste means that the end product has low thermal conductivity and is therefore a good insulator," explains Carmen Martínez, researcher at the University of Jaen. "In addition to the resulting benefit of using these bricks instead of their traditional counterparts made of traditional raw materials." Another of the advantages of adding waste to the brick prototypes is that they provide energy due to their organic material content. This could help to reduce fuel consumption and kiln time required for brick production. At the moment the prototype's dimensions are small (3 x 1 x 6 cm). But the team has already tested larger bricks and the results are similar. "On the whole, this technique could bring about a saving in energy and raw materials for brick factories along with environmental benefits from the use of waste that is initially discarded," adds Martínez. The researcher recognises, however, that the 'Achilles heel' of these bricks is their lower mechanical resistance compared to traditional bricks, although this parameter is above the legal minimum. There are still a few problems to solve in the adherence and shaping of those pieces that have high percentages of paper waste. The team continues in their search for the happy medium between sustainability and material resistance and is still researching the advantages of adding other products, such as sludge from water treatment plants or residues from the beer, olive and biodiesel industries. In the Fuel Processing Technology journal itself, the researchers have published another study confirming that biodiesel waste can be used for brick manufacture, thus increasing insulation capacity by 40%. More information: Carmen Martínez, Teresa Cotes, Francisco A. Corpas. "Recovering wastes from the paper industry: Development of ceramic materials". D. Eliche-Quesada, S. Martínez-Martínez, L. Pérez-Villarejo, F. J. Iglesias-Godino, C. Martínez-García, F.A. Corpas-Iglesias. "Valorizationof biodiesel production residues in making porous clay brick". Fuel Processing Technology 103, 2012. Doi: 10.1016/j.fuproc.2011.10.017 and 10.1016/j.fuproc.2011.11.013 Provided by Spanish Foundation for Science and Technology (FECYT) search and more info

Read more at: http://phys.org/news/2012-12-paper-bricks.html#jCp

   

Tagged categories: Brick; Construction; Insulation; Recycled building materials; Research

Comment from Catherine Brooks, (1/30/2013, 2:36 PM)

I read about a man in Africa who has developed bricks from the waste beef blood from processing plants. The bricks do not require high heat ovens to bind them. Another great benefit is the creation of jobs in underdeveloped countries.


Comment from Catherine Brooks, (1/30/2013, 2:36 PM)

I read about a man in Africa who has developed bricks from the waste beef blood from processing plants. The bricks do not require high heat ovens to bind them. Another great benefit is the creation of jobs in underdeveloped countries.


Comment Join the Conversation:

Sign in to our community to add your comments.

Advertisements
 
Atlas Material Testing Technology
 
Helping You Put Your Products To The Test
 
  • Outdoor Accelerated Weathering
  • Laboratory Testing Services
  • Accelerated Weathering Instruments

  • www.atlas-mts.com
    atlas.info@ametek.com
 

 
Pratt & Lambert Paints
 
Trusted Performance with Proven Results
 
Pratt & Lambert’s finest, Accolade® Premium Paint & Primer, applies flawlessly with superb hide and long-lasting durability for great results, every time.
 

 
PPG Paints
 
PURE PERFORMANCE® Interior Latex Paint
 
PPG PAINTS™ Pure Performance interior latex paint delivers a durable finish. Its zero-VOC,* low-odor formula makes it ideal for schools, hotels, hospitals, office buildings, retail spaces, home residences and more. *Colorants added to this base paint may increase VOC level significantly depending on color choice.
 

 
CONSTRUCT (by CSI)
 
Free Expo Pass to CONSTRUCT 2017
 
CONSTRUCT is the only dedicated national trade show and educational conference for the commercial building teams that spec and source building products. CONSTRUCT links thousands of industry leaders to procure real-world, practical knowledge for building success.
 

 
RCI, Inc.
 
RCI Building Envelope Technology Symposium
 
November 13-14, 2017 | Orlando, Florida | Learn valuable design and repair insights from 20 leading design experts. RCI, Inc. is an AIA LU provider. Learn more.
 

 
A&I Coatings
 
Vitreflon – the hallmark of colour stable protective coatings
 
Vitreflon two pack fluoropolymer coatings display unsurpassed colour and gloss retention making Vitreflon the coating of choice for high value infrastructure and architecture. Contact us today to find out how Vitreflon can outperform on your next project. Vitreflon distributorships available.
 

 
 
 

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

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


The Technology Publishing Network

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

 

© Copyright 2012-2017, Technology Publishing Co., All rights reserved