Volume 94 Issue 42 | p. 11 | Concentrates
Issue Date: October 24, 2016

Concrete skin detects cracking and chemical leaks

Researchers develop a silver and copper coating to monitor the structural integrity of building materials
Department: Science & Technology
News Channels: Environmental SCENE, Materials SCENE
Keywords: coatings, architecture, cracking, chemical leak, chemical storage

When concrete chemical and nuclear containment structures begin to crack or corrode, facility engineers need an instant warning. One way to monitor structural integrity of concrete is to measure its electrical impedance, which changes when the material cracks. However, this strategy suffers sensitivity issues. An international team instead is proposing to monitor both cracking and chemical leakage of concrete structures by measuring the electrical impedance of a multilayer coating applied to the structure’s surface (Struct. . . .

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