Chemical degradation creates a ticking clock for many structures in Gaza. Even when the fighting stops, the damage to the bones of the buildings continues. Carbonation is a major issue. As carbon dioxide seeps into concrete, it lowers the pH level. This loss of alkalinity removes the protective layer around steel reinforcement. Once that protection vanishes, the rebar begins to rust. Rust expands. This expansion creates internal pressure that cracks the concrete from the inside out, often called spalling.
In Gaza, this problem is compounded by the existing trauma from kinetic strikes. Micro-cracks from explosions act as highways for moisture and salt. Water carries chemicals deeper into the structure faster than it would in a pristine building. This accelerates the corrosion cycle. We aren't just looking at cosmetic surface damage; we are looking at a loss of load-bearing capacity.
The instability becomes permanent if repairs don't happen quickly. A building might look standing today, but the internal chemistry might already be failing. Reconstructing Gaza will require more than just clearing rubble. Engineers will have to account for the invisible, ongoing decay that has been accelerating throughout the conflict.
