When most people look at a newly surfaced road, driveway or commercial yard, they see a relatively uniform black surface. Look more closely, however, and you will notice that the asphalt contains thousands of individual stones of different sizes. These stones are known as aggregate, and they play a fundamental…

A newly surfaced road or car park should appear smooth, consistent and structurally sound. However, after months or years of use, some asphalt surfaces begin developing narrow cracks along straight lines. These cracks often follow the boundaries between sections of asphalt laid at different times. At first, the separation may…

Most asphalt roads have a slightly rough, textured appearance. This texture is important because it helps vehicle tyres interact with the road surface, particularly during braking, cornering and wet weather. However, some roads develop unusually dark, glossy or polished-looking patches over time. These areas are often most noticeable around junctions,…