Hydraulic and earth engineering – Drainage or irrigation – Including subsurface moisture barrier
Patent
1994-02-14
1995-07-04
Corbin, David H.
Hydraulic and earth engineering
Drainage or irrigation
Including subsurface moisture barrier
405 36, 405229, E02B 1100, E02D 3100
Patent
active
054294533
ABSTRACT:
An improved surface covering for use in tennis courts or other fields on which games are played and which require a hard surface. The surface covering includes layers of materials applied on an old existing covering which is inferior for one or more reasons. The new covering includes a drain rock layer beneath a flexible fabric panel which is beneath a new base rock layer. A layer of asphalt is applied to the base rock layer, following which a thin layer, such as of bitumen or the like, can be applied to the top of the asphalt layer. The new covering will "float" on top of the old covering to allow the old covering to expand or contract due to ground movement while also eliminating moisture problems.
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