Impermeable ecological barrier and process of making same from r

Details Impermeable ecological barrier and process of making same from r Impermeable ecological barrier and process of making same from r

1976-06-14

1977-06-21

Taylor, Dennis L.

61 36R, E02D 1500

Patent

active

040303071

ABSTRACT:
An ecologically acceptable liquid-impermeable geologic barrier is made from shale. In the process described, the preferred shale is Brainard Shale, the upper shale formation 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 operaton 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.

REFERENCES:
patent: 2929219 (1960-03-01), Degen
patent: 3614867 (1971-10-01), Nieman
patent: 3732697 (1973-05-01), Dickson
patent: 3898844 (1975-08-01), Menard

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