New rust sensor could lead to safer bridges

According to the Neil Young album title, rust never sleeps. In construction, rust damage can be insidious – especially in infrastructure like concrete bridges where rust can have fatal consequences if the steel in bridges fails. But detecting rust before it’s too late has been an ongoing challenge for engineers and scientists. Experts at the Fraunhofer Institute for Microelectronic Circuits and Systems IMS have developed an early-warning system for rust. By installing sensor-transponders into in the concrete to measure the extent of corrosion, engineers are being given a vital heads-up.

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