Superior corrosion resistance
Corrosion is one of the major cause of failure in post-tensioned structures. Galvanized and zinc-aluminium alloyed coatings ( Bezinal®, Bezinal®3000 ) post-tensioning strands by Bekaert combine excellent mechanical properties with advanced corrosion protection. Moreover all strands can be HDPE sheathed.
- Chloride Tolerance
The chloride tolerance of galvanized reinforcement is >10x higher than black steel delaying the onset of steel corrosion significantly. - Carbonation Tolerance
The pH around black steel can drop to <11.5 su causing it to depassivate. Galvanized coatings can maintain passivation, by keeping the pH down to 8 su.