The effect of compositional parameters on the TCLP and PCT durability of environmental glasses
- Clemson Univ., SC (United States)
- Westinghouse Savannah River Company, Aiken, SC (United States)
A large glass composition space has previously been developed to serve as a simplified model for studying the durability of glassy wasteforms which might result from vitrification. In this study, a subset of this space has been examined for chemical durability by both the Product Consistency Test (PCT) and the Toxicity Characteristic Leaching Procedure (TCLP) tests. The subset included five variable components (SiO{sub 2}, Al{sub 2}O{sub 3}, B{sub 2}O{sub 3}, Na{sub 2}O, and CaO) and four fixed level components (Fe{sub 2}O{sub 3}, BaO, PbO, and NiO). Glass disks were prepared and analyzed by X-ray fluorescence spectrometry (XRF). Chemical durability testing was performed, and the results of the PCT tests are presented. The mole ratio of glass-former to glass-modifier had a large positive effect on the PCT durability, while the cation mole ratio had a large negative effect. A minor positive effect on the PCT durability was observed by increasing the Al{sub 2}O{sub 3} mole percent from 0 to 10. The ratio of B{sub 2}O{sub 3} to glass-former had negligible effect on the durability.
- OSTI ID:
- 211682
- Report Number(s):
- CONF-9509139-; TRN: 96:009842
- Resource Relation:
- Conference: 7. ACS special symposium: emerging technologies in hazardous waste management, Atlanta, GA (United States), 17-20 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Emerging technologies in hazardous waste management VII; Tedder, D.W. [ed.]; PB: 1352 p.
- Country of Publication:
- United States
- Language:
- English
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