What are granular materials mixed with a cementing medium to create concrete referred to as?

Granular materials mixed with a cementing medium to create concrete are referred to as aggregates. In concrete construction, aggregates serve as the primary structural element, providing strength and bulk to the concrete mix. These materials can include sand, gravel, crushed stone, or other forms of particulate matter. When combined with water and cement, these aggregates form a composite material that hardens and gains strength over time.

The role of aggregates is vital, as they occupy a significant volume in the concrete mix, can influence the concrete's properties, and help in achieving the desired performance criteria for various applications. Proper selection and grading of aggregates are essential for ensuring that the concrete has the necessary workability, durability, and resistance to cracking.

In contrast, binders refer to materials that bind aggregates together, such as cement itself, while fillers are often used to fill voids in the mix but do not serve the same primary structural role as aggregates. Resins are typically synthetic substances used in other types of construction or manufacturing processes, rather than standard concrete formulations. Therefore, aggregates is the most accurate term to describe the granular materials in concrete.