| 摘要 |
In another embodiment, a composition for use as a sport or recreational surface includes about 88 to 90 percent by weight of a sand blend that is formed of at least three different sands mixed together, the sand blend including a first sand that is represents a majority by weight of the sand blend and has a clay/silt content of at least 1% by weight; about 5-7 percent by weight of a hydrocarbon wax; at least about 2 percent by weight of polymeric material; and at least about 3 percent by weight of rubber, the percentage by weight of each ingredient being based on the total weight of the composition. |
