Developing Low pH concrete for tunnel plugging structures in nuclear waste containment

Research output: Contribution to journalArticleScientificpeer-review

Abstract

This presentation describes research done within an EU FP7 Euratom project, to develop and validate the performance of low-pH concretes used in high level radioactive nuclear waste containment structures. The unique type of concrete is used for deposition tunnel end plugs that are approximately 400 metres underground within repository conditions. The research has focused on producing highly workability mixtures with local materials, where rheology and heat of hydration have been optimized simultaneously with long-term durability and watertightness targets. The results are being implemented with full-scale construction of the 6 metre long tunnel plug in the 15 m2 tunnel cross section.
Original languageEnglish
Pages (from-to)491-494
JournalNordic Concrete Research
Volume50
Issue number2
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed
EventXIII Nordic Concrete Research Symposium - Reykjavik, Iceland
Duration: 13 Aug 201415 Aug 2014

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Radioactive wastes
Tunnels
Concretes
Rheology
Hydration
Durability

Keywords

  • nuclear
  • durability
  • binders
  • silica fume
  • fly ash
  • rheology
  • SCC
  • performance
  • permeability
  • structural design
  • testing

Cite this

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title = "Developing Low pH concrete for tunnel plugging structures in nuclear waste containment",
abstract = "This presentation describes research done within an EU FP7 Euratom project, to develop and validate the performance of low-pH concretes used in high level radioactive nuclear waste containment structures. The unique type of concrete is used for deposition tunnel end plugs that are approximately 400 metres underground within repository conditions. The research has focused on producing highly workability mixtures with local materials, where rheology and heat of hydration have been optimized simultaneously with long-term durability and watertightness targets. The results are being implemented with full-scale construction of the 6 metre long tunnel plug in the 15 m2 tunnel cross section.",
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author = "Markku Leivo and Tapio Vehmas and Erika Holt",
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Developing Low pH concrete for tunnel plugging structures in nuclear waste containment. / Leivo, Markku; Vehmas, Tapio; Holt, Erika.

In: Nordic Concrete Research, Vol. 50, No. 2, 2014, p. 491-494.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Developing Low pH concrete for tunnel plugging structures in nuclear waste containment

AU - Leivo, Markku

AU - Vehmas, Tapio

AU - Holt, Erika

PY - 2014

Y1 - 2014

N2 - This presentation describes research done within an EU FP7 Euratom project, to develop and validate the performance of low-pH concretes used in high level radioactive nuclear waste containment structures. The unique type of concrete is used for deposition tunnel end plugs that are approximately 400 metres underground within repository conditions. The research has focused on producing highly workability mixtures with local materials, where rheology and heat of hydration have been optimized simultaneously with long-term durability and watertightness targets. The results are being implemented with full-scale construction of the 6 metre long tunnel plug in the 15 m2 tunnel cross section.

AB - This presentation describes research done within an EU FP7 Euratom project, to develop and validate the performance of low-pH concretes used in high level radioactive nuclear waste containment structures. The unique type of concrete is used for deposition tunnel end plugs that are approximately 400 metres underground within repository conditions. The research has focused on producing highly workability mixtures with local materials, where rheology and heat of hydration have been optimized simultaneously with long-term durability and watertightness targets. The results are being implemented with full-scale construction of the 6 metre long tunnel plug in the 15 m2 tunnel cross section.

KW - nuclear

KW - durability

KW - binders

KW - silica fume

KW - fly ash

KW - rheology

KW - SCC

KW - performance

KW - permeability

KW - structural design

KW - testing

M3 - Article

VL - 50

SP - 491

EP - 494

JO - Nordic Concrete Research

JF - Nordic Concrete Research

SN - 0800-6377

IS - 2

ER -