Concrete cancer is one of the most destructive problems that can affect a building, and it is surprisingly common. Signs of concrete cancer include cracking, crumbling, or flaking of concrete, rust spots or bubbles on concrete or cement plaster, and leaks in the ceiling and walls. Six common causes of concrete cancer are poor waterproofing, formation of saltwater chlorides in buildings near the sea, construction defects, weather, poor quality concrete and insufficient concrete cover, and ground movement under construction that causes cracks. Buildings that are more than 10 years old are particularly vulnerable to this issue. The process of treating concrete cancer begins with the removal of concrete contaminated with chloride.
This can be done through waterblasting or the use of electric hammers, chisels, concrete saws and other similar tools. After removing chloride, the reinforcing bar is made resistant to corrosion by applying protective coatings. To strengthen protection against chloride contamination, a surface treatment in the form of a cathodic system is applied. In some cases, experts may recommend the use of additional reinforcing steel anodes before applying new concrete, or the steel could be replaced in severe cases. Flat concrete roofs are particularly vulnerable to leaks and water-driven concrete cancer if they are not properly waterproofed.
If you need help repairing, removing or installing new concrete, compare quotes for concrete mixers near you. When it comes to building repair, we've found that there are few problems that can't be corrected, and this includes concrete cancer. It is important to understand what specific cancer is, what you can do about it, the importance of getting expert help, and how you can prevent it from happening again. The problem is that, as rust worsens, expanding steel pushes the surrounding concrete outward, leading to more chipping and cracking and ongoing structural degradation. Concrete cancer is a serious issue that can cause significant damage to a building if left untreated. It is important to be aware of the signs of this issue and to take action quickly if you suspect your building may be at risk.
By understanding the causes of this problem and taking steps to prevent it from occurring in the first place, you can ensure your building remains safe and structurally sound for years to come.