Backfill for engineered barrier

Details Backfill for engineered barrier Backfill for engineered barrier

1993-05-25

1995-11-07

Mai, Ngoclan

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106812, 106DIG4, 588 16, 588 17, 976DIG389, 405128, C04B 3300

Patent

active

054644739

ABSTRACT:
A backfill for an engineered barrier used to contain radioactive waste has a predetermined amount of clayic material and a predetermined amount of a reinforcement material with hydrophobic surface characteristics. The reinforcement material may include hydrophobic compounds selected from group consisting of organic polymers or inorganic materials on which a layer of hydrophobic compounds is formed. The hydrophobic reinforcement material results in the backfill maintaining a very low water permeability while providing high mechanical strength and other properties suitable for use in a repository of radioactive waste.

REFERENCES:
patent: 4234469 (1980-11-01), Conner
patent: 4321158 (1982-03-01), Beall et al.
patent: 4615643 (1986-10-01), Gouvenot
patent: 4781860 (1988-11-01), Doan
patent: 4790688 (1988-12-01), Castor
patent: 4983075 (1991-01-01), Delmas et al.
patent: 5098612 (1992-03-01), Rowsell
patent: 5114275 (1992-05-01), West et al.
patent: 5288177 (1994-02-01), Montgomery et al.

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