There are more than 1.5 million condominium units in Florida, of these, more than 912,000 and are older than 30 years, approximately the home of 2,000,000 residents. The tragic event in Surfside building (Condo Collapse) brought the topic of safety of aging structures to the surface. More likely than not proper inspection and corrosion risk assessment in 2018 would have prevented this tragic event. Corrosion of steel reinforcement in concrete also led to the partial collapse of the federal office building housing the United States Drug Enforcement Administration (DEA) Miami Field Division. That building collapsed on the morning of August 5, 1974, crushing to death 7 DEA employees and injuring 15 others. The rooftop parking lot caved in causing the partial collapse.
We at Matergenics understand your need to protect your assets and prevent future, catastrophic failures. Our NACE certified engineers and corrosion experts are highly trained and ready to assist you in your concrete assessments.
Accelerated corrosion due to chloride ions will reduce the thickness of the rebar, which can weaken it and cause collapse. Another way for concrete to fail is when iron oxide forms around rebar, resulting in an expansion in volume that causes the surrounding concrete to spall.
Sources: The Constructor; Mehrooz Zamanzadeh PhD, Matergenics. Wall Street Journal Aug 24th 2021