02/04/2023
When stepping onto a construction site and there are piles of stones, can you distinguish which type they belong to?
Aggregate, hardcore, and crusher run are all commonly used in construction, but they have distinct differences in composition and intended use.
refers to a mixture of crushed stones, gravel, and sand that is used in the construction of roads, foundations, and other types of concrete structures. The particles of aggregate are typically larger than those of sand, and are graded according to size. The grading of the aggregate determines the strength and workability of the concrete mix, with larger particles providing greater strength and smaller particles providing better workability.
on the other hand, is a type of compacted rubble made from crushed bricks, concrete, or other building materials. It is used as a sub-base layer for roads, pavements, and foundations, and helps to distribute the weight of the structure evenly over the underlying soil. Hardcore is typically laid in layers and compacted using heavy machinery, to create a stable base for the construction above.
is a blended mix of coarse aggregate and fine aggregate. The combination of both crushed stone and stone dust creates a low void content (the amount of empty space between the particles) and provides a solid foundation for the construction above. It is commonly used as a base layer for roads, driveways, and parking lots.
So, there you have it! Aggregate is used in concrete structures, hardcore is made from recycled materials and used as a sub-base layer, and crusher run is a specific blend of coarse and fine aggregates commonly used as a base layer. Choose the one that's right for your construction project and get building!
