What Is Concrete Spalling?
TjalfExoxy > 11-10-2021, 07:04 AM
The phenomenon in which Concrete Surface undergoes flaking or peeling near the surface portion of the finished slab, which may further extend to the top layer of reinforcing steel is known as Concrete Spalling. Spalling occurs through freezing and thawing cycles of concrete which may be 150 mm in diameter and 25 mm in depth or more. (wood)
Concrete Spalling is greatly influenced by material parameters such as permeability of concrete, porosity, and moisture content, properties of aggregate, reinforcement, and presence of cracks. However, environmental factors influencing the concrete spalling include thermal restraint, heating rate, and profile, and temperature level.
Spalling can be categorized into 3 different types, which include aggregate spalling, corner spalling i.e. sloughing off, and explosive spalling. Each type of sapling affects concrete in different ways which include a broad variety of structures such as multi-story car parks, framed buildings, bridges, tanks, jetties, and bunds. Parapet wall Wood