Method for obtaining a geopolymeric binder allowing to stabilize

Details Method for obtaining a geopolymeric binder allowing to stabilize Method for obtaining a geopolymeric binder allowing to stabilize

1992-05-01

1996-07-23

Walsh, Donald P.

Hazardous or toxic waste destruction or containment

Destruction or containment of radioactive waste

By fixation in stable solid media

588 10, 588 9, 106607, 106624, G21F 900

Patent

active

055391400

ABSTRACT:
The method of the invention provides a geopolymeric binder in powder, used for the ultra rapid treatment of materials, soils or mining tailings, containing toxic wastes. Said geopolymeric binder has a setting time equal to or greater than 30 minutes at a temperature of 20.degree. C. and a hardening rate such as to provide compression strengths (Sc) equal to or greater than 15 MPa, after only 4 hours at 20.degree. C., when tested in accordance with the standards applied to hydraulic binder mortars having a binder/sand ratio equal to 0.38 and a water/binder ratio between 0.22 and 0.27. The preparation method includes the following three reactive constituents:

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