Impermeable ecological barrier and process of making same...

Details Impermeable ecological barrier and process of making same... Impermeable ecological barrier and process of making same...

E - Fixed Constructions

02

D

61/4.5

E02D 3/12 (2006.01) E02B 3/12 (2006.01) E02D 31/00 (2006.01)

Patent

CA 1044902

ABSTRACT OF THE DISCLOSURE An ecologically acceptable liquid-impermeable geo- logic barrier is made from shale. In the process described, the preferred shale is Brainard Shale, the upper shale forma- tion in the Maquoketa Group, which is excavated to expose solid, unweathered shale in its original sedimentary state. The Brainard shale is removed by a suitable mining operation and crushed into an aggregate which can be readily compacted. Water is added and the shale aggregate is thoroughly mixed to uniformly disperse the water. It is immediately spread in a layer of uniform thickness along a wall to be sealed and worked and further mixed in place and compacted solid by multiple passes of a sheepsfoot roller. This is repeated in multiple lifts until the barrier reaches a desired total compacted thickness and width.

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