A roller compactor is a construction machine used to compress and compact materials like soil, asphalt, or gravel. It typically features large, heavy drums that roll over the surface, applying pressure to increase density and stability. This process is essential for creating strong foundations and smooth road surfaces. These machines come in various types, including static rollers, vibratory rollers, and tandem rollers, each designed for specific tasks. Roller compactors are commonly used in road construction, landscaping, and earthworks, ensuring that surfaces are durable and can withstand heavy loads.