Aggregate materials are a collection of particles used in construction and civil engineering. They include natural materials like sand, gravel, and crushed stone, as well as recycled materials. These aggregates serve as the foundation for concrete, asphalt, and other building materials, providing strength and stability to structures. The quality and size of aggregate materials can significantly affect the performance of construction projects. For example, concrete made with well-graded aggregates can enhance durability and reduce the risk of cracking. Proper selection and processing of these materials are essential for achieving desired results in various applications, from roads to buildings.