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The Buffering Mechanisms in Leaching of Composites of Cement with Radioactive Waste

Published online by Cambridge University Press:  21 February 2011

Mary W. Barnes
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
Della M. Roy
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
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Extract

Composites of cement and radioactive waste are being used for disposal of low level waste and may be used for high level waste. It is important to be able to predict their behavior in case of intrusion of leaching waters. The purpose of this paper is to determine the mechanisms of leaching of the cement and how the presence of radioactive waste components affects these mechanisms in composites.

Type
Research Article
Copyright
Copyright © Materials Research Society 1983

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References

REFERENCES

1. Robie, R.A., Hemingway, B.S., and Fisher, J.R., Thermodynamic Properties of Minerals and Related Substances at 298.15K and 1 Bar (105 Pascals) Pressure and at Higher Temperatures, Geol. Survey Bulletin 1452, U.S. Govt. Printing Office, Washington, DC (1978).Google Scholar
2. Helgeson, H.C., Delaney, J.M., Nesbitt, H.W., and Bird, D.K., Summary and Critique of Thermodynamic Properties of Rock-Forming Minerals, American Journal of Science 278-A (1978).Google Scholar
3. Lea, F.M., The Chemistry of Cement and Concrete, 3rd Edition, Edward Arnold Ltd., London (1970).Google Scholar
4a. Sarkar, A.K., Barnes, M.W., and Roy, D.M., Longevity of Borehole and Shaft Sealing Materials: I. Thermodynamic Properties of Cements and Related Phases Applied to Repository Sealing, Report No. ONWI-201, Office of Nuclear Waste Isolation, Battelle Project Management Division, Columbus, OH (1980), 48 pp.Google Scholar
b. Roy, D.M., Scheetz, B.E., Grutzeck, M.W., Sarkar, A.K., and Atkinson, S.D., “A Low Temperature Ceramic Radioactive Waste Form,” Proceedings, International Symposiu of Ceramics in Nuclear Waste Management, Cincinnati, OH, Apr. 30-May 2, 1979; Eds. Chikalla, T.D. and Mendel, J.E.. Nuclear Division, American Ceramic Society and USDOE Conf-790420 (1979), pp. 136142.Google Scholar
c. Roy, D.M., “Geochemical Factors in Borehole and Shaft Plugging Materials Stability,” Borehole and Shaft Plugging Proceedings, OECD/USDOE, Columbus, OH (7–9 May 1980), pp. 369384; OECD, Paris, France (1980).Google Scholar
d. Roy, D.M., Scheetz, B.E., and Barnes, M.W., Preparation of Cement Composite Nuclear Waste Forms and Their Physical and Chemical Properties, Report PSU- 021 from The Pennsylvania State University, Materials Research Laboratory, to Rockwell International under Contract DE-AC09–79ET41900 with the Department of Energy; University Park, PA (September 15, 1981).Google Scholar
5. Mchedlov-Petrosyan, O.P., Ed., Thermodynamics of Silicates (in Russian) (1972).Google Scholar
6. Brunauer, S. and Greenberg, S.A., “Hydration of Tricalcium Silicate at Room Temperature,” Chemistry of Cement, Proc. 4th Intl. Symposium, Washington 1960, Natl. Bur. Stands. Monograph 43, Vol. 1, 135165 (1962).Google Scholar
7. Garrels, R.M. and Christ, C.L., Solutions, Minerals and Equilibria, Harper and Row, NY (1965)Google Scholar
8. Vance, E.R., Scheetz, B.E., Barnes, M.W., and Bodnar, B.J., “Studies of Pollucite,” Scientific Basis for Nuclear Waste Management, Vol. 6, Elsevier, North-Holland, NY (1982), pp. 3136 Google Scholar
9. Scheetz, B.E., Roy, D.M., Tanner, C., Barnes, M.W., Grutzeck, M.W., and Atkinson, S.D., “Properties of Cement Radioactive Waste Form with High Level of Loading,” Cer. Bull. 60, 367 (1981); in press, J. Am. Ceram. Soc.Google Scholar
10. Stone, J.A., Goforth, S.T. Jr., and Smith, P.K., Preliminary Evaluation of Alternative Forms for Immobilization of Savannah River Plant High-Level Waste, DP-1545, DuPont de Nemours & Co., Savannah River Laboratory, Aiken, SC 29801, 17 (1979).CrossRefGoogle Scholar
11. Barnes, M.W., Scheetz, B.E., Wakeley, L.D., Atkinson, S.D., and Roy, D.M., “Stability of I and Sr Radiophases in Cement Matrices,” Scientific Basis for Nuclear Waste Management, Vol. 6, Elsevier, North-Holland, NY (1982); pp. 147154.Google Scholar
12. Roy, D.M., Scheetz, B.E., Wakeley, L.D., and Barnes, M.W., “Leach Characterization of Cement Encapsulated Wastes,” Nuclear and Chemical Waste Management, Vol. 3, pp. 3542 (1982).Google Scholar
13. Barnes, M.W., Roy, D.M., and Scheetz, B.E., “Leaching mechanisms in composites of nuclear wastes with cement,” Amer. Ceram. Soc. Bull., Vol. 61, p. 389 (1982).Google Scholar
14. Stumm, W. and Morgan, J.J., “Aquatic Chemistry,” (1970).Google Scholar