What is the crack formation called when it creates large interconnected polygons with sharp corners or angles?

The correct term for the crack formation that creates large interconnected polygons with sharp corners or angles is known as block cracking. This phenomenon typically occurs in asphalt pavements and is characterized by a series of connected fractures that form large, rectangular or square-shaped blocks.

Block cracking is primarily caused by the thermal expansion and contraction of the pavement material over time, as well as factors such as aging and environmental conditions. The cracks can be quite prominent and may extend through the entire thickness of the asphalt layer, potentially leading to further deterioration if not addressed.

Understanding the types of cracking is essential for civil engineers when assessing pavement conditions and planning maintenance strategies. Identifying block cracking helps determine appropriate repair methods, as this type of cracking may require sealing or resurfacing to restore the surface integrity and prevent further damage.