As a high-end technical product among concrete utility poles, short-cut steel fibers are randomly distributed in the concrete to form a three-dimensional reinforced network—like the "bones of concrete." This drastically improves the brittleness of concrete, bringing a qualitative leap in its crack resistance, toughness, impact resistance, and fatigue resistance.
Its crack test bending moment is much higher than that of ordinary utility poles, reaching more than 1.5 times that of ordinary poles of the same specification. It is usually used in conjunction with prestressed or non-prestressed steel bars. The production process requires strict control over the dosage and distribution of steel fibers as well as the workability of concrete.
Mainly used in critical pole positions of 110kV/220kV power lines (e.g., terminal poles and corner poles) to directly replace small steel towers, saving costs and line corridor space. It also serves as a reinforced pole for crossing critical facilities (e.g., railways and expressways). In fields with extreme safety requirements such as military and nuclear power, it is used as a structural pole.
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