From driveways and drainage to highways and homes, aggregate is the unsung hero of the construction world. It’s in the concrete under your feet, the asphalt on your street, and the foundation that holds it all together. But what exactly is aggregate, and why is it such a big deal?
At Milliken Corporation, we understand that high-quality aggregate is the backbone of every durable, long-lasting build—and we’re proud to be part of the process that delivers it.
What Is Aggregate?
Aggregate refers to a broad category of raw materials used in construction, including:
-
Gravel
-
Crushed stone
-
Sand
-
Recycled concrete
These materials are combined with binding agents like cement or asphalt to form concrete, road base, drainage layers, and more. Aggregate gives structure, strength, and stability to everything from patios to parking lots.
Types of Aggregate
There are two main categories:
1. Fine Aggregate
-
Typically sand or crushed stone smaller than ¼ inch
-
Used in concrete, plaster, and mortar
2. Coarse Aggregate
-
Larger materials like gravel or crushed stone up to several inches in diameter
- Essential for road base, structural concrete, and erosion control
Why Aggregate Matters
Using the right aggregate can impact:
-
Durability – Stronger structures with less cracking or shifting
-
Drainage – Prevents water pooling and foundation damage
-
Efficiency – Proper gradation reduces voids and improves compaction
-
Cost – Local, high-quality aggregate keeps projects on budget
Need Aggregate for Your Next Project?
Whether you’re a contractor looking for a reliable source, or a homeowner with a DIY driveway project, Milliken Corporation can help you access the right aggregate for the job. We know the materials. We know the suppliers. And we know what it takes to build it right.
