1. The Mechanism of Atmospheric Carbonation
Over decades of atmospheric exposure, carbon dioxide diffuses into the concrete matrix, neutralizing the natural alkaline passivating layer (pH drops below 9) and initiating rapid rebar oxidation, expansion, and spalling.
2. Polymer-Modified Structural Mortar Mortars
Remediation begins with mechanical hydro-demolition of deteriorated concrete down to sound aggregate, followed by passive zinc-rich primer application on exposed reinforcement and reinstatement with fiber-reinforced, polymer-modified structural repair mortars.
3. Migrating Corrosion Inhibitors (MCI)
Applying surface-applied organofunctional silane-based migrating corrosion inhibitors provides proactive deep protection to surrounding structures, dramatically halting future galvanic cell formation.
