AGGREGATE SUB BASE

You might be wondering if it’s necessary to lay a sub-base for your particular project. Here are some good reasons why you shouldn’t bypass this step:

• Spreads the surface load evenly over a wider area, guarding against any shifting, sinking or other movement. Therefore, failure to lay a sub-base can lead to damage and cracks appearing in the surface over time.
• Provides excellent drainage and prevents pooling on the surface.
• Provides a strong, stable and supportive layer on which to begin constructing a patio, road, driveway etc.
• May provide a barrier to weed growth.

A sub base is an aggregate or aggregate mix that forms a sound, load-bearing base layer for applications such as the construction of roads, paths and pavements

Sub-bases are the load-bearing layer of many pavements, the buried component that provides strength and resilience. They can also provide drainage, with the right choice of aggregate, but their key role is to provide that firm, stable and reliable foundation for the prettier parts of the pavement.

ARAMCO STANDARD FOR SUB BASE CLASS A & B: