Descaling, or concrete flaking, is a common issue that occurs when water trapped in the concrete goes through multiple freeze-thaw cycles. This causes the water to expand by about 9%, creating tremendous pressure inside the slab. Carbonation is another natural process that can lead to chipping, as water seeps into the concrete and corrodes any reinforcing bars embedded in it. This can cause bulges and cracks on the surface of the concrete.
Poor quality steel can also be a factor in husking. Cold winter climates are especially prone to freeze-thaw cycles, as water settles on the garage floor and makes its way to the capillaries of the concrete. When it freezes, it expands and causes microscopic damage to the surrounding concrete. People often mistakenly believe that water is the main cause of peeling concrete, but this is not always the case.
The best way to prevent flaking is to take steps when the concrete is first poured. Robson Forensic offers experts across the country who can provide first-hand knowledge and experience around chipping issues in their specific geographic region. So, what exactly is chipping? What are its effects and how can structures be successfully repaired and further corrosion prevented? Chipping can have serious economic consequences, as it can weaken a structure over time and require costly repairs. Chipping is a term used to describe areas of concrete that have cracked and delaminated from the substrate.
Corrosion of reinforcing steel is usually the main cause of chipping in large concrete constructions. To avoid chipping, proper techniques should be used during the pouring process and concrete should be handled with care. Chipping can be natural or man-made, so there are prevention and repair steps that must be followed. Fire-fighting operations can also cause flaking, as water poured onto a heated concrete surface can cause damage.
The contractor should pay special attention to corners and edges of exposed concrete when it comes to peeling. In all cases, water content is usually the main cause of deterioration and flaking.
