Hydraulic and earth engineering – Drainage or irrigation – Including subsurface moisture barrier
Patent
1989-08-28
1991-04-09
Corbin, David H.
Hydraulic and earth engineering
Drainage or irrigation
Including subsurface moisture barrier
405 50, 405265, A01G 2500, E02B 1100
Patent
active
050060139
ABSTRACT:
The disclosure is directed to a built-up granular structure having a stable moisture content controlled upper layer. The preferred granular structure includes an improved fine aggregate upper surface layer, a coarse aggregate reservoir layer having a topmost application of perforate adhesive material, and a dry moisture barrier layer having a topmost impervious layer. The entire layered structure is supported by any firm base including compacted soil or an existing playing court structure. A containment wall having screened drainage inlets/outlets surrounds the periphery of the structure.
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Brieger Emmet F.
Burkstaller Herman F.
Burco, Inc.
Corbin David H.
Duggan Donovan F.
Peacock Deborah A.
Weig Robert W.
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