What is the purpose of using aggregate base (AB) in landscape design?

Using aggregate base (AB) in landscape design primarily serves the purpose of supporting structural loads. This material provides a stable foundation for various types of surfaces, including pavements and pathways. Its composition allows it to distribute weight evenly and support the forces exerted by vehicles and pedestrians, preventing the surface from settling or cracking over time.

Aggregate base also contributes to drainage, as it allows water to flow through it, reducing the risk of pooling water, which can lead to surface degradation. This drainage capability can be particularly beneficial in ensuring that the immediate environment remains stable and accessible. By creating a solid underlying support, aggregate base materials help maintain the integrity of hardscape elements in a landscape, making them crucial in designs that involve infrastructure and usable surfaces.