Choosing the Right Aggregate: A Guide to Construction and Landscaping Materials

May 5, 2026 | Paving

What is the best aggregate for my construction project?

The right aggregate depends entirely on your project’s goals. For a stable driveway base, crushed stone (like traffic bond) is best because its angular edges lock together under pressure. For drainage projects, washed stone is preferred because it allows water to flow freely. For decorative landscaping, river rock or pea gravel offers the best aesthetic appeal.

Common Types of Aggregate and Their Uses

Understanding material types is crucial for site development and earthwork:

  • Crushed Stone (Traffic Bond / Base Course): Crushed limestone mixed with dust. It compacts tightly, making it the perfect foundation for asphalt paving, concrete pours, and gravel driveways.
  • Washed Stone / Clear Stone: Stone that has been washed free of dust and fines. It does not compact, making it ideal for French drains, retaining wall backfill, and septic fields.
  • Pea Gravel: Small, smooth, rounded stones. Commonly used for walking paths, playgrounds, and decorative landscaping borders.
  • Sand: Used for leveling pavers, mixing concrete, or filling sandboxes.

Why Quality Material Matters

Using the wrong aggregate can lead to catastrophic project failures. For example, using washed stone under a new asphalt driveway will result in shifting and collapsing, because the stones cannot compact into a solid base. Conversely, using traffic bond in a drainage ditch will block water flow and cause flooding.

Material Hauling Made Easy

Whether you are a DIY homeowner building a retaining wall or a commercial developer prepping a site, getting the right material delivered on time is crucial.

Davis Construction Company offers premium material hauling and sales in Portage, WI. Call us at 608-742-7224 to schedule your aggregate delivery today!

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