FIELD: metallurgy.
SUBSTANCE: invention relates to protection of metals against corrosion. Sacrificial anode comprises at least one helical coil comprising a sacrificial metal and a longitudinal axis, at least one elongated electrical conductor electrically connected to said helical coil and helically wound around at least a portion of said longitudinal axis of said at least one helical coil to provide its connection with said helical coil at multiple points, and an encasement material surrounding at least a portion of said at least one helical coil and optionally a portion of said at least one elongated electrical conductor.
EFFECT: sacrificial anode is easy to manufacture and occupies a minimum volume in a steel-reinforced concrete structure, protecting maximum surface area from corrosion.
37 cl, 15 dwg
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