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Old Posted Jul 29, 2013, 6:07 PM
amor de cosmos amor de cosmos is offline
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conductive cement

I guess this could be a new form of radiant-floor heating too. Or radiant-wall heating, and who knows what else, without any metallic elements:

Quote:
UA researchers convert cement into an electrical conductor
29 July 2013 Asociación RUVID

Researchers at the University of Alicante have developed a cementitious material incorporating carbon nanofibers in its composition, turning cement into an excellent conductor of electricity capable of performing functions beyond its usual structural function.

This new technology, developed and patented by the UA Civil Engineering Department’s Research Group in Multifunctional Concrete Conductors, allows, among other functions, the material to heat up due to the passage of current.

“The technology allows buildings’ premises to heat or prevents the formation of ice on infrastructure, such as highways, railways, roads, airstrips and other elements”, lecturer Pedro Garcés, head of research, explains.

"To obtain a cementitious compound effective as the heating element, this should have a low resistivity. This is not achieved in conventional concrete because they are poor conductors of electricity. However, this can be achieved by the addition of conductive materials such as, for example, carbonaceous materials”, Pedro Garcés adds.

In this way, a new conductive compound with much more interesting properties is achieved since it keeps the structural properties of concrete and does not compromise the durability of the structures themselves.
http://www.alphagalileo.org/ViewItem...CultureCode=en
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  #2  
Old Posted Jul 29, 2013, 9:49 PM
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chris08876 chris08876 is online now
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Could be a means to lower costs for electrical conductivity surfaces. Possibly lowering the costs for heated drive ways.
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