Summary Characteristics of Inorganic Loose Material - Recycled Rubber Tire Chips Fall Absorbing Characteristics at 6" depth: Wood Chips, Critical height 7 foot Double Shredded Bark Mulch, Critical height 6 foot Engineered Wood Fibers, Critical height 6 foot Fine Sand, Critical height 5 foot Coarse Sand, Critical height 5 foot Fine Gravel, Critical height 6 foot Medium Gravel, Critical height 5 foot Shredded Tires, Critical height 10-12 foot Installation/Maintenance: Should not be installed over existing hard surfaces (e.g., asphalt, concrete). Method of containment needed (e.g., retaining barrier, excavated pit). Good drainage required underneath material. Requires continuous maintenance (e.g., leveling, grading, sifting, raking) to maintain appropriate depth and remove foreign matter. Advantages: Ease of installation. Has superior shock absorbing capability. Is not abrasive. Less likely to compact than other loose-fill materials. Not ideal for microbial growth. Does not deteriorate over time. Disadvantages: Is flammable. (Note, other studies have shown it is not easily ignited) Unless treated, may cause soiling of clothing. May contain steel wires from steel belted tires. Depth may be reduced due to displacement by children's activities. May be swallowed. |
