Disassembling Concrete with Lightning

December 11, 2012 · Print This Article

Researchers from the Fraunhofer Institute for Building Physics have developed a method to break down old concrete debris into its constituents for better recycling and re-use of the material. The process, called electrodynamic fragmentation, uses very short pulses (less than 500 nanoseconds) of induced lightning to separate gravel from cement materials in concrete.

Concrete is a material with a mixed environmental pedigree. Although its workability and durability build it

extremely useful for a lot of expectations, it plus has several drawbacks. There are the environmental impacts from the production of concrete, and it is additionally a major component of the materials going into landfills, so this makes the view of recycling concrete a compelling one.

At present, most concrete recycling is merely to crush it and use it for sub-base under roads. This is better than landfilling it, […]

[Source] Cynthia


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