This invention describes a concrete structure, such as a beam or slab, that is strengthened by internal steel cables pulled taut. These cables are equipped with small sensors designed to detect moisture within the concrete. The sensors are powered wirelessly by radio waves, eliminating the need for internal batteries, and specifically measure the moisture content.
Why it matters: Since 2018, passive wireless power and data transfer for embedded sensors have become more robust and efficient, making long-term, battery-free moisture monitoring in concrete more practical.
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