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The 4 Main Types of Aggregates and their Uses

Aggregates are essential materials used in many construction projects. They come in different sizes and shapes, and depending on the project, they can be used for various purposes. Each type has its own unique characteristics that make it suitable for specific applications. In this blog, we will explore each type of aggregate in detail to determine which is best suited for your project.

Types of Aggregates

Here are the four main types of aggregates and their uses.

Crushed Stone

Crushed stone is a type of aggregate made by crushing rocks and other materials. This type can be used in various construction projects and landscaping applications. Crushed stone has numerous benefits over the others, such as cost-effectiveness and durability. It also provides an excellent base for roads, driveways, and pathways. With its versatility, it can be used in drainage systems to help prevent flooding and soil erosion.

Uses of crushed stone

  • Road base – It is commonly used as a base material for roads and highways. It provides a stable and durable foundation for the road surface.
  • Construction fill – It can be used as fill material in construction projects
  • Driveways – It is a popular material choice for parking lots and driveways. 


Gravel is a popular material used in landscaping and construction projects. It comprises small stones, ranging from pebbles to larger stones worn down by the water or pounded into shape. It is known for its durability and toughness, making it an ideal choice for driveways, pathways, and other areas where you need a strong surface.

Uses of gravel

  • Drainage systems –  It is commonly used in drainage systems, as it allows water to flow through easily.
  • Landscaping – It can be used as a decorative element in landscaping projects.


Sand is quite gritty and can be found in screened sand, mason sand, and concrete sand, among other forms. It is frequently used as a foundation material for building, constructing, and landscaping projects.

Uses of Sand

  • Concrete production – Sand is a key ingredient in the production of concrete. It is used as a fine aggregate in the mixture and provides strength and durability to the finished product.
  • Beaches and recreational areas – It is commonly used to create beaches and recreational areas. 

Recycled Concrete Aggregate (RCA)

RCA is a type of aggregate made by crushing and grading old concrete from demolished buildings, bridges, and other infrastructure. It can be used as a substitute for natural aggregates, such as crushed stone or gravel, in various construction applications.

Uses of RCA

  • Base Material for Roads and Pavements
  • Backfill Material
  • Landscaping Material
  • Subgrade Material

Overall, using aggregates in construction projects is essential for creating a stable and durable foundation or structural component. Each type of aggregate has unique properties and uses, making it important to choose the right type for each specific project. 

At SCB Grab Hire, we can provide you with the appropriate aggregate to meet your needs, regardless of whether you’re beginning a new outdoor project or enhancing your backyard. Do not hesitate to get in touch with us today! 

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