Joseph Mantarro - Pensacola FL Keh-Chang Liu - Pensacola FL Barry J. Dempsey - White Heath IL
Assignee:
Monsanto Company - St. Louis MO
International Classification:
E01C 908 E01C 1110
US Classification:
404 35
Abstract:
Elongated, bendable drainage mat having a rectangular transverse cross section and comprising a polymeric core having a plurality of substantially rigid fingers extending from one side of a layer and an enveloping water permeable fabric having a permittivity from 0. 2 seconds. sup. -1 to 2. 0 seconds. sup. -1 and a dynamic permeability after 10. sup. 6 loadings of at least 10. sup. -4 centimeters per second. Apparatus and systems using such drainage mat.