Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Posiva Oy is constructing one of the world's first long-term nuclear waste repositories in Fin-land. Cementitious materials will be in direct contact with backfill and closure materials. It is assumed that cementitious leachates will interact with backfill and closure materials but not to extent that compromises the long-term safety of the barrier system. In this study, existing modelling tools were compared to experimental samples. Applicability to model the low-pH cementitious materials pore solution compositions was evaluated. Accurate modelling will enable long-term evaluation of the cementitious leachates effect to the backfill and closure materials.
Original languageEnglish
Title of host publicationNordic Concrete Research
Subtitle of host publicationProceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017
PublisherNorsk Betongforening
Pages11-14
Publication statusPublished - 2017
MoE publication typeA4 Article in a conference publication
EventXXIII Nordic Concrete Research Symposium - Aalborg, Denmark
Duration: 21 Aug 201723 Aug 2017

Conference

ConferenceXXIII Nordic Concrete Research Symposium
CountryDenmark
CityAalborg
Period21/08/1723/08/17

Fingerprint

Portland cement
Radioactive wastes
Chemical analysis

Keywords

  • cement
  • modelling
  • nuclear

Cite this

Vehmas, T., Leivo, M., & Holt, E. (2017). Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs. In Nordic Concrete Research: Proceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017 (pp. 11-14). Norsk Betongforening.
Vehmas, Tapio ; Leivo, Markku ; Holt, Erika. / Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs. Nordic Concrete Research: Proceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017. Norsk Betongforening, 2017. pp. 11-14
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Vehmas, T, Leivo, M & Holt, E 2017, Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs. in Nordic Concrete Research: Proceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017. Norsk Betongforening, pp. 11-14, XXIII Nordic Concrete Research Symposium, Aalborg, Denmark, 21/08/17.

Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs. / Vehmas, Tapio; Leivo, Markku; Holt, Erika.

Nordic Concrete Research: Proceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017. Norsk Betongforening, 2017. p. 11-14.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

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N2 - Posiva Oy is constructing one of the world's first long-term nuclear waste repositories in Fin-land. Cementitious materials will be in direct contact with backfill and closure materials. It is assumed that cementitious leachates will interact with backfill and closure materials but not to extent that compromises the long-term safety of the barrier system. In this study, existing modelling tools were compared to experimental samples. Applicability to model the low-pH cementitious materials pore solution compositions was evaluated. Accurate modelling will enable long-term evaluation of the cementitious leachates effect to the backfill and closure materials.

AB - Posiva Oy is constructing one of the world's first long-term nuclear waste repositories in Fin-land. Cementitious materials will be in direct contact with backfill and closure materials. It is assumed that cementitious leachates will interact with backfill and closure materials but not to extent that compromises the long-term safety of the barrier system. In this study, existing modelling tools were compared to experimental samples. Applicability to model the low-pH cementitious materials pore solution compositions was evaluated. Accurate modelling will enable long-term evaluation of the cementitious leachates effect to the backfill and closure materials.

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KW - modelling

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Vehmas T, Leivo M, Holt E. Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs. In Nordic Concrete Research: Proceedings of the XXIII Nordic Concrete Research Symposium, Aalborg, Denmark 2017. Norsk Betongforening. 2017. p. 11-14