Hostname: page-component-5b777bbd6c-2c8nx Total loading time: 0 Render date: 2025-06-19T07:30:52.780Z Has data issue: false hasContentIssue false
  • English
  • Français

Performance of Cementitious Systems in the Repository

Published online by Cambridge University Press:  25 February 2011

M. Atkins ,
D. Damidot  and
F.P. Glasser
M. Atkins
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB9 2UE. Scotland.
D. Damidot
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB9 2UE. Scotland.
F.P. Glasser
Affiliation:
Department of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen, AB9 2UE. Scotland.
Get access

Abstract

The behaviour and performance of cement barriers in the repository have been modelled. Since the models employ thermodynamic calculations, an important task is the development of a validated database. This must include phases and aqueous species appropriate to cement and modified cements, containing tly ash and slag. Closed system mineralogy and chemistry are explored as a function of cure duration and thermal excursions. Work has only just begun on open system behaviour: some aspects of reactions with chloride, sulfate and carbonate are described. Future progress depends on database extensions, validation experiments and the coupling of equilibrium and kinetic aspects of reaction.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 333: Symposium V – Scientific Basis for Nuclear Waste Management XVII , 1993 , 315
Copyright
Copyright © Materials Research Society 1994

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1 Taylor, H.F.W., Zeit. fur Krist. 202, 41–50 (1992).CrossRefGoogle Scholar
2 Lea, F.M., ‘The Chemistry of Cement and Concrete’, 3rd edition, Edward Arnold, London (1976).Google Scholar
3 McCulloch, C.E., ‘The Immobilisation of Cs in Cement Based Matrices’, PhD Thesis, Univ. of Aberdeen, Scotland (1985).Google Scholar
4 Atkinson, A.A. and Hearne, J.A., ‘The Hydrothermal Chemistry of Portland Cement and its relevance to Radioactive Waste Disposal’, Nirex Safety Studies report no. NSS/R187, Harwell, UK (1989).Google Scholar
5 Atkins, M., Glasser, F.P., Moroni, L.P. and Jack, J.J. (in Press) Thermodynamic Modelling of Blended Cements at Elevated Temperature (50– 90°C), HMIP report on contract no. PECD/7/9/563, Aberdeen, Scotland.Google Scholar
6 Constable, M., Fenton, A., Jones, D.V.C., Lee, D.J. and Wilding, C.R., ‘Elevated Temperature Grouts and Radioactive Waste Inventory’, Report no. DoE/RW/90.063, AEA Winfrith, UK (1990).Google Scholar
7 Atkins, M., Bennet, D., Dawes, A., Glasser, F.P., Kindness, A. and Read, D. ‘A Thermodynamic Model for Blended Cements’, HMIP report no. DoE/HMIP/RR/92/005, Aberdeen, Scotland (1992).Google Scholar
8 Jappy, T.G., ‘Silica Substituted Calcium Aluminate Hydrate Garnets’. MSc Thesis, Univ. of Aberdeen, Scotland (1992).Google Scholar
9 Mehta, P.K., 3rd CANMET/ ACI Conf. Fly Ash, Silica Fume, Slag and Natural Pozzolans in Concrete, vol. 1, 1–44 (1989).Google Scholar
10 Turriziani, R., chapter 6 in ‘The Chemistry of Cements’, vol. 1, ed. Taylor, H.F.W., Academic Press, London (1964).Google Scholar
11 Atkins, M., Glasser, F.P., Kindness, A. and Macphee, D.E., ‘Solubility Data for Cement Hydrate Phases (25°C)’, HMIP report no. DoE/HMIP/RR/91/32, Aberdeen, Scotland (1991).Google Scholar
12 Bennet, D., Read, D., Atkins, M. and Glasser, F.P., J. Nucl. Mats. 190, 315–328 (1992).CrossRefGoogle Scholar
13 Sarrot, F.A., pers. comm., Paul Scherrer Institute, Switzerland (1992).Google Scholar
14 Atkinson, A. and Guppy, R.M., ‘The Evolution of pH in a Radwaste Repository: Leaching of Modified Cements and Reactions with Groundwater’, report no. AERE-R12961, AERE Harwell, UK (1988).Google Scholar
15 Atkins, M., Bennet, D.G., Dawes, A.C., Glasser, F.P., Kindness, A. and Read, D., Cem. Cone. Res. 22, 497–502 (1992).CrossRefGoogle Scholar
16 NIREX, ‘Deep Waste Repository: A Preliminary Assessment of Post- Closure Performance’, vol.l, report no. 337 (NSS/A401).Google Scholar
17 Atkinson, A., Everitt, M. and Guppy, R.M., MRS Symp. Proc. vol. 127, 439–446 (1989).CrossRefGoogle Scholar
18 Berner, U.R., Radiochimica Acta 44/45, 387–393 (1988).CrossRefGoogle Scholar
19 De Silva, P.S., ‘Chemical and Microstructural Development of Cements with Metakaolin’, PhD Thesis, Univ. of Aberdeen, Scotland (1992).Google Scholar
20 La Rosa, J.L., Kwan, S. and Grutzeck, M.W., J. Am. Ceram. Soc. 75, 211–216 (1992).Google Scholar
21 Glasser, F.P., Damidot, D. and Atkins, M., ‘Phase Development in Cement in Relation to the Reversionary Ettringite Problem’, Adv. Cem. Res. (in Press).Google Scholar
22 Damidot, D. and Glasser, F.P., Cem. Cone. Res 23, 221–38 (1993).CrossRefGoogle Scholar
23 Damidot, D. and Glasser, F.P., Cem. Cone. Res 22,1179–91 (1992).CrossRefGoogle Scholar
24 Damidot, D., Birnin Yauri, U.A., ‘Thermodynamic Investigation of the CaO-Al2O3-CaCl2-H2O system at 25°C and the influence of Na2O’, submüted to 11 Cemento.Google Scholar
25 Schweite, H.E., Ludwigand, U. Albeck, J., Die Naturwissenschaften 55,179 (1968).CrossRefGoogle Scholar
26 Buck, A.D., 8th ICCC Rio de Janeiro, 417–23 (1986).Google Scholar
27 Monosi, S. and Collepardi, M., Il Cemento, 3–8 (1990).Google Scholar
28 O’Connor, J., J. Chem. Soc. 130, 2700 (1927).CrossRefGoogle Scholar
29 Milikan, J., J. Phys. Chem. 92, 59–80, (1916).Google Scholar
30 Schreinemakers, F.A.H. and Figee, D., Chem. Weekblad 8, 683 (1911).Google Scholar
31 Damidot, D., Atkins, M., Kindness, A., Stronach, S. and Glasser, F.P., Thermodynamic Investigation of the CaO-Al2O3-CaCO3H2O Closed System at 25°C and the Influence of Na2O’, submitted to Cem. Cone. Res.Google Scholar