Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Patent
1993-07-13
1994-09-20
Taylor, Dennis L.
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
588257, 405128, 106624, 106707, 106900, B09B 100, C01B 3326
Patent
active
053491181
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. The 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:
REFERENCES:
patent: 4028454 (1977-06-01), Davidovits et al.
patent: 4349368 (1982-09-01), Davidovits
patent: 4377415 (1983-03-01), Johnson et al.
patent: 4472199 (1984-09-01), Davidovits
patent: 4509985 (1985-04-01), Davidovits et al.
patent: 4537710 (1985-08-01), Komarneni et al.
patent: 4640715 (1987-02-01), Heitzmann et al.
patent: 4642137 (1987-10-01), Heitzmann et al.
patent: 4842649 (1989-06-01), Heitzmann et al.
patent: 4859367 (1989-08-01), Davidovits
patent: 5114622 (1992-05-01), Funabashi et al.
D. C. Comrie et al., "Geopolymer Technologies in Toxic Waste Management," Geopolymer '8, vol. 1, pp. 107-123, Universite de Technologie, Compiegne, France, (1988).
Davidovits et al., "Long Term Durability of Hazardous Toxis and Nuclear Waste Disposals." Geopolymer '88, vol. 1, pp. 125-134, Universite de Technologie, Compiegne, France, (1988).
Sang et al., "Aluminum-27 and Silicon-29 MAS-NMR Study of the Kaolinite-Mullite Transformation," J. Am. Cearm. Soc., 71 (10), C418-C421 (1988).
Regourd, "Microanalytical Studies of Surface Hydration Reactions of Cement Compounds." Phil. Tran. R. Soc. Land. A 310, 85-92 (1983).
Skibsted, "High-speed .sup.29 Si and .sup.27 Al MAS NMR Studies of Portland and High Alumina Cements," Geopolymer '88, vol. 3, pp. 179-196, Universite de Technologie, Compiegne, France 1988.
MacKenzie et al., "Outstanding Problems in the Kaolinite-Mullite Reaction Sequence Investigated by .sup.29 Si and .sup.27 Al Solid State NMR," J. Am. Cearm. Soc., 68 (6), 293-297 (1985).
Ricci John A.
Taylor Dennis L.
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