Destruction of concrete by lightning

The claim that the apartment building in Chennai (see post below) collapsed because of a lighting strike sounds- at first- far fetched, since such never was reported before. However, the Polytechnic Südwestfalen, Germany, made laboratory tests that showed that an enormous explosive power is mobilized, when the charge of a lighting jumps from one reinforcement iron to another (when not properly bound together). A possible lesson for engineers and builders in the industrialized countries as well.

concrete-broken-crossing-iron

© Polytechnic Südwestfalen, Prof. Dr.- Ing. Jan Meppelink

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