Process for making cementitious mine backfill in a salt environm

Details Process for making cementitious mine backfill in a salt environm Process for making cementitious mine backfill in a salt environm

1992-07-31

1994-08-23

Reese, Randolph A.

Hydraulic and earth engineering

Soil remediation

In situ contaminant removal or stabilization

106710, 106791, 588257, C04B 702

Patent

active

053402359

ABSTRACT:
The present invention generally relates to a method for hydraulically backfilling empty mined salt cavities. The method comprises combining at least one pozzolanically active waste material with an effective amount of an alkaline earth metal in the form of an alkaline earth metal hydroxide or alkaline earth metal oxide and saturated brine to form a pozzolanic mixture, wherein the relative proportions of said pozzolanically active waste material, alkaline earth metal hydroxide or alkaline earth metal oxide and saturated brine are sufficient for reaction under atmospheric conditions in said salt cavity to form a stable, low porosity, load bearing pozzolanic cement; and hydraulically depositing said pozzolanic mixture in the empty salt cavity.

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"Fourth Symposium on Salt", The Northern Ohio Geological Society, Inc., vol. 2, No. 3568.

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