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Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates. Aggregates are the most mined materials in the world.
Aggregates form the foundational support for building construction, facilitating the weight-bearing capacity of structures. They are essential in formulating concrete mixes for floors and walls, influencing durability and resistance.
On average, 38,000 tons of aggregates are necessary to construct one lane mile of interstate highway. Construction of the average home requires 400 tons of aggregate, while the average size school or hospital requires 15,000 tons.
Learn why aggregates are crucial in concrete and other construction materials and how you can use aggregates in many types of construction projects.
What are construction aggregates? Construction aggregates are simply those hard, granular materials, used specifically within the construction sector. They are the fundamental elements that help build our cities, roads and homes, and form the basis of a number of other construction materials – which could not be made without aggregates.
Discover Holcim’s aggregates and solutions — a full range of crushed rock, stone, sand and gravel for dozens of applications ranging from ready-mixed and precast concrete, asphalt and as a base material for street and road construction.
Aggregates are the most basic material used in construction. They provide the foundation for roads, bridges, and buildings, while also making up more than 90 percent of an asphalt pavement and up to 80 percent of a concrete mix.