A roller compactor is a machine used in construction and road building to compress materials like soil, asphalt, or gravel. It works by using heavy rollers to apply pressure, ensuring that the material is dense and stable. This process is essential for creating a solid foundation for roads, parking lots, and other structures. These machines come in various types, including static rollers and vibratory rollers, each designed for specific tasks. The use of a roller compactor helps improve the durability and longevity of surfaces, making it a vital tool in the construction industry.