| 摘要 |
The present invention relates to a school playground with a double layer structure easily draining off water, suppressing dust scattering, and preventing injury, and to a playground with a double layer structure including a red clay mixture used for a base layer of a playground with a double layer structure and a playground with a double layer structure including the red clay mixture. According to the present invention, the playground with a double layer structure includes: a ground protecting pad (10), a rubble stone layer (20), a crushed stone compaction layer (30), a nonwoven fabric (40), a carbonized material layer (50), a red clay mixture layer (60), and a surface coating material (70). According to the present invention, the playground is an alternative playground to a conventional artificial grass sports field made of an organic synthesis resin. The present invention can provide a playground which is new and excellent in quality by remarkably improving the performances, such as stability, drainage, dust scattering suppressing performance, and comfort properties, required as a playground whereby students can do various physical activities. |
