What Is Spalling Concrete & How Do You Identify It?
Concrete Repair & Waterproofing
Concrete is a highly versatile material that is widely used in almost all buildings. You can use it for flooring, walls and the building itself. Though concrete is a durable material that can last a long time, it is also prone to damage over time. This can occur due to impact damage, carbonation of the concrete or general wear and tear. Damages to the concrete surface can be dangerous to occupants of a building; bulging or dented concrete on the floor can cause trips or falls. Damaged wall or ceiling concrete can also flake and fall off, potentially injuring passersby. Furthermore, the deterioration of concrete will lead to serious structural issues for the building.
Spalling concrete is a common issue for older buildings. It is largely caused by carbonation where the steel bars embedded in the ceiling slab start to corrode, which in turn causes the concrete cover to crack and bulge. Interfloor seepage is a common occurrence that happens when a waterproofing issue trickles downwards and affects the floor below. For minor leaks, a localised repair using PU grouting can be used to troubleshoot the issue. For severe leaks, a comprehensive repair must be carried out which involves waterproofing works on the floor above.