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Please use this identifier to cite or link to this item:
http://apo.ansto.gov.au/dspace/handle/10238/1260
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| Title: | Geopolymers as candidates for low/intermediate level highly alkaline waste. |
| Authors: | Perera, DS Vance, ER Kiyama, S Aly, Z Yee, P |
| Keywords: | Polymers Wastes Alkaline Hydrolysis Materials Radioactive Waste Management Radioactive Wastes |
| Issue Date: | 27-Nov-2006 |
| Publisher: | Materials Research Society |
| Citation: | Perera, D., Vance, E., Kiyama, S., Aly, Z., & Yee, P. (2007). Geopolymers as candidates for low/intermediate level highly alkaline waste. 30th International Symposium on the Scientific Basis for Nuclear Waste Management (2006 MRS Fall Meeting), 27th November – 1st December 2006. Boston, Massachusetts, United States of America: Hynes Convention Center. In D.S. Dunn, C. Poinssot, B. Begg (Eds.), Scientific Basis for Nuclear Waste Management XXX, 985 (Symposium NN), 361-6(0985-NN10-01). |
| Abstract: | Geopolymers should be serious waste form candidates for intermediate level waste (ILW), insofar as they are more durable than Portland cement and can pass the PCT-B test for high-level waste. Thus an alkaline ILW could be considered to be satisfactorily immobilised in a geopolymer formulation. However a simulated Hanford tank waste was found to fail the PCT-B criterion even for a waste loading as low as 5 wt%, very probably due to the formation of a soluble sodium phosphate compound(s). This suggests that it could be worth developing a ìmixedî GP waste form in which the amorphous material can immobilise cations and a zeolitic component to immobilise anions. The PCTñB test is demonstrably subject to significant saturation effects, especially for relatively soluble waste forms. |
| URI: | http://apo.ansto.gov.au/dspace/handle/10238/1260 http://www.mrs.org/s_mrs/bin.asp?CID=7392&DID=196984&DOC=FILE.PDF |
| ISBN: | 9781558999428 |
| ISSN: | 0272-9172 |
| Appears in Collections: | Conference Publications |
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