Why Does Asphalt Crack?

Asphalt cracking can be caused by changes in conditions, such as heat which can cause base materials with higher clay contents (e.g. Some gravel) to dry in summer and crack, whilst winters can introduce moisture and instability above and below surfaces, which can lead to further damage.

Why Does Asphalt Crack?

Asphalt is one of the most popular forms of pavement material used for roadways, driveways, parking lots, and pathways across the globe. Asphalt is a reliable and durable material that holds up to various weather conditions. However, despite its strength, asphalt is not immune to cracking. Cracked asphalt can be both unsightly and potentially dangerous for drivers and pedestrians. So why does asphalt crack?

The primary reason asphalt cracks is due to the expansion and contraction of the material when exposed to extreme temperatures over time. When asphalt is exposed to sunlight or extremely hot temperatures, the material will expand. During winter months, or when temperatures drop, the asphalt material will contract, leading to the formation of cracks. If the pavement was applied too thin or not given adequate time to cool down after being applied, then the cracks will appear quicker than if the asphalt was applied properly.

In addition to drastic changes in temperature, organic material or dirt can also lead to asphalt cracks. Tree roots, or large shrubs, can cause the asphalt to crack as the roots spread beneath the asphalt material. Poor drainage channels, lack of proper maintenance, using the wrong type of materials, inadequate compaction of soil, and traffic can all contribute to the formation of asphalt

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