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Scientists at Spain’s University of Jaen Create Eco-Friendly Bricks from Paper Waste
Posted By Lidija Grozdanic On December 24, 2012 @ 11:27 am In energy efficiency,Environment,Green Materials,Green Technology,Innovation,News,Recycled Materials,Sustainable Materials | 3 Comments
Scientists at Spain’s University of Jaen  have found an affordable and eco-friendly way to make bricks from paper waste . The process diverts the byproducts of paper mills from going to a landfill, and the bricks can be created in less time than other building materials, saving energy and money.
Waste material from paper mills, along with left over sludge from waste water purification  processes, are mixed with clay, pressurized and extruded in one long piece of building material. The sausage-like piece is cut into bricks which are then fired in a kiln. The process requires less time for the material to bake than the conventional bricks. The 3x1x6 cm paper bricks have low thermal conductivity, which gives them great insulating properties.
However, bricks made from cellulose  have considerably lower mechanical strength compared to traditional ones. Among other issues are adhesion problems and forming difficulties which accompany the manufacturing processes of materials with such high percentages of paper waste.
The team continues to work to find balance between sustainability and strength of the material, in addition to investigating the advantages of incorporating other products, such as sewage sludge  or waste generated by brewing, olive or producing biodiesel.
Via Treehugger 
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URL to article: http://inhabitat.com/scientists-at-spains-university-of-jaen-create-eco-friendly-bricks-from-paper-waste/
URLs in this post:
 Image: http://inhabitat.com/wp-content/blogs.dir/1/files/2012/12/paperbricks-1.jpg
 University of Jaen: http://www.agenciasinc.es/Noticias/Fabrican-ladrillos-con-residuos-de-papel
 paper waste: http://inhabitat.com/brilliant-device-turns-waste-paper-into-pencils/
 Image: http://www.youtube.com/watch?v=VBUbBGs8oNM
 waste water purification: http://inhabitat.com/research-finds-banana-peels-can-efficiently-remove-toxic-metals-from-wastewater/
 made from cellulose: http://inhabitat.com/super-durable-material-made-from-wood-waste-is-stronger-cheaper-and-lighter-than-kevlar/
 sewage sludge: http://inhabitat.com/south-korean-researchers-create-clean-biodiesel-from-sewage-sludge/
 Treehugger: http://www.treehugger.com/clean-technology/paper-waste-could-be-made-eco-friendly-bricks.html
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