A finishing tool, typically rectangular and made of materials like magnesium or wood, is designed to smooth and consolidate the surface of freshly poured concrete. Its purpose is to embed aggregate particles just below the surface, remove imperfections, and prepare the surface for subsequent finishing operations. These tools are commonly available at large home improvement retailers.
The use of this tool is crucial for achieving a durable and aesthetically pleasing concrete surface. By properly floating the concrete, one can improve the resistance to cracking and scaling, and create a smoother, more uniform appearance. The tool has a long history, evolving from simple wooden boards to more sophisticated magnesium and composite materials as concrete technology has advanced.