Children's playgrounds
Hard materials like concrete, asphalt and compacted soil are dangerous, if a child's head should strike the surface it might give serious damages ,such as brain damage, serious disability or even death as a result. Gravel, sand, mulch and wood chips ensures a better protection
but causes problems as the need for constant maintenance, sanitary risks and an increased danger for eye injuries and accidental ingestion is a fact. Furthermore, the use of gravel and sand will result in an increased wear and tear on playground equipment, furniture and floorings etc.