What is a potential consequence when salt water weakens a slab's rebar?

💡 Explanation

Expanding rust fractures occur because **corrosion** generates iron oxides. These oxides occupy greater volume, which exerts concentrated expansive stress on the surrounding concrete, thus spalling occurs. Therefore, cracking happens, rather than increased strength or general concrete degradation.

• Which consequence results when transformer saturation occurs due to a DC current component in a three-phase power distribution system?
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