Method of grouting formations and composition useful therefor
AssigneeGeochemical Corporation
InventorWilliam J. Clarke
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Abstract
A method of grouting formations with a cementitious material comprising microfine ground slag is useful for stabilizing and strenghtening soil and rock formations as well as underground structures associated with buildings, tunnels and dams. A composition is provided which comprises water, a dispersant, slag and an accelerator to activate the slag. The method and composition are particularly useful for preventing permeation of water such as for grouting dam curtains and containing and stabilizing hazardous wastes including nuclear waste material.
Claims20
In a method of grouting formations, which comprises injecting into a formation a composition, the improvement wherein the composition comprises:
- (a) water;
- (b) particulate slag comprising a microfine slag having a specific surface area greater than about 9,500 cm.sup.2 /g with less than 3 wt. percent of the particles of said slag being larger than 7.8 micrometers in diameter;
- the proportions of water and slag being within a water to slag weight ratio of between 0.5:1 and 10:1;
- (c) at least one dispersant in an amount effective to disperse the particles of said particulate slag;
- and
- (d) an accelerator in an amount effective to provide hydraulic reactivity to said slag.
Dependencies are inferred from the claim text.