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Thermodynamic Modeling of Cement/Groundwater Interaction as a Tool For Long-Tern Performance Assessment

  • Louise J. Criscenti (a1) and R. Jeff Serne (a1)


The chemical behavior of cement in the natural environment is of interest because cement has been suggested as a means of containing low-level radioactive waste and as a barrier between radioactive-waste containers and the surrounding soil or rock. In the past, either experiments or computer modeling have been used independently to predict how cement will leach in the natural environment. In this study, a geochemical model for cement leaching was developed, and predictions by the model were compared to results from a static leach test. Calcium concentrations and pH were adequately predicted by the model; however, other major leachate constituents, such as Al, Si, and S04, were poorly predicted. Additional experimental data and refinement of the model are both required to better predict the observed leachate concentrations. Accurate prediction of experimental results by a geochemical model would increase confidence in the model for use in long-term performance assessment.



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1. Cote, P.L., Constable, T.W., Moreira, A., Nuclear and Chemical Waste Management 7, 129139 (1987).
2. Serne, R.J., Martin, W.J., McLaurine, S.B., Airhart, S.P., LeGore, V.L., Treat, R.L., Laboratory Leach Tests of Phosphate/Sulfate Waste Grout and Leachate Adsorption Tests Using Hanford Sediment (PNL-6019, Pacific Northwest Laboratory, Richland, WA 1987).
3. Kalb, P.D., Columbo, P., in Waste Management '84, edited by Post, R.G., (The University of Arizona, Tucson, AZ 1984), 2, 189194.
4. Godbee, H.W., Anders, O.U., Nielson, R.M. Jr, Nuclear and Chemical Waste Management 1, 2935 (1980).
5. Haworth, A., Sharland, S.M., Tweed, C.J., in Scientific Basis for Nuclear Waste Management XII, 447454 (1989).
6. Alcorn, S.R., Myers, J., Gardiner, M.A., Givens, C.A., Waste Management '89 (Arizona Board of Regents, Tucson, AZ, 1989), pp. 279286.
7. Fritz, B., Made, B., Tardy, Y., Geochemical Modelling of the Evolution of a Granite-Concrete-Water System Around a Repository for Spent Nuclear Fuel (SKB Technical Report 88-18, Svensk K rnbr nslehantering Ab, Stockholm, Sweden, 1988), pp. 29.
8. Roy, D.M., Langton, C.A., Longevity of Borehole and Shaft Sealing Materials: Characterization of Cement-Based Ancient Building Materials. (ONWI-202, 1982).
9. Lea, F.M., The Chemistry of Cement and Concrete, 3rd ed. (Edward Arnold Ltd, London 1970).
10. Bye, G.C., Portland Cement: Composition, Production and Properties. (Pergamon Press, London 1983).
11. Glasser, F.P., Macphee, D.E., Lachowski, E.E., in Scientific Basis for Nuclear Waste Management XI, 112, 312 (1988).
12. Berner, U.R., in Scientific Basis for Nuclear Waste Management X, 319330 (1987).
13. Berner, U.R., Radiochimica Acta, 44/45, 387393 (1988).
14. Bogue, R.H., Industrial and Engineering Chemistry Analytical Edition, 1, 192196 (1929).
15. Felmy, A.R., Girvin, D.C., Jenne, E.A., MINTEO: A Computer Program for Calculating Aqueous Geochemical Equilibria (EPA-600/3-84-032, 1984).
16. Peterson, S.R., Hostetler, C.J., Deutsch, W.J., Cowan, C.E., MINTEO User's Manual (NUREG/CR-4808, 1987).
17. Muller, A.B., Gilpin, H.E., Preliminary Estimates of the Chemical Stability of Cement Phases for Repository Seal Materials Performance for a Salt Repository (SAIC, 1987).
18. Berner, U.R., paper presented at the NEA/Nagra Workshop on “Near Field Assessment of Repositories for Low and Medium Level Waste”, Baden, Switzerland (1987).
19. Wolery, T.J., E03NR A Computer Program for Geochemical Aqueous Speciation-Solubility Calculations: User's Guide and Documentation (UCRL-53414, Lawrence Livermore Laboratory, Livermore, CA 1983).


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