Durability tests on plasma treated surrogate cemented concentrates and resins

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Durability tests on plasma treated surrogate cemented concentrates and resins. / Ferreira, Eduardo; Hendrix, Katrien; Bleyen, Nele; Valcke, Elie; Coppens, Erik; Meert, Katrien; Ben Hadj Hassine, Seif.

In: MRS Advances, 26.12.2019.

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Ferreira, Eduardo; Hendrix, Katrien; Bleyen, Nele; Valcke, Elie; Coppens, Erik; Meert, Katrien; Ben Hadj Hassine, Seif / Durability tests on plasma treated surrogate cemented concentrates and resins.

In: MRS Advances, 26.12.2019.

Research output: Contribution to journalArticle

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@article{e61a9ee22dbb477baed8ad1bfaf1f557,
title = "Durability tests on plasma treated surrogate cemented concentrates and resins",
keywords = "Plasma incineration, radioactive waste, long-term disposal",
author = "Eduardo Ferreira and Katrien Hendrix and Nele Bleyen and Elie Valcke and Erik Coppens and Katrien Meert and {Ben Hadj Hassine}, Seif",
note = "Score=10",
year = "2019",
month = "12",
doi = "doi.org/10.1557/adv.2019.478",
journal = "MRS Advances",
issn = "2059-8521",
publisher = "Cambridge University Press",

}

RIS - Download

TY - JOUR

T1 - Durability tests on plasma treated surrogate cemented concentrates and resins

AU - Ferreira,Eduardo

AU - Hendrix,Katrien

AU - Bleyen,Nele

AU - Valcke,Elie

AU - Coppens,Erik

AU - Meert,Katrien

AU - Ben Hadj Hassine,Seif

N1 - Score=10

PY - 2019/12/26

Y1 - 2019/12/26

N2 - Plasma incineration might be a promising technique for the conditioning of various radioactive waste streams. Assessing the long-term durability of the plasma slag is essential to predict its performance during long-term disposal. In this paper, the stability of six plasma treated surrogate cemented concentrates or resins in a high pH environment is investigated. The slags were crushed (2 different granulometries) and immobilized in a cement matrix, after which samples were submitted to long-term durability tests (stability under water at 20 °C; stability in a high relative humidity environment at 38 °C) and to an accelerated Alkali-Silica-Reaction (ASR) test (1 M NaOH at 80 °C). The first results show that the expansion and strength loss of the cement-slag mixtures remain limited in the test conditions, although differences between the different materials and granulometries could be perceived. No visual damage was observed. Some tests are still ongoing and will last 2 years.

AB - Plasma incineration might be a promising technique for the conditioning of various radioactive waste streams. Assessing the long-term durability of the plasma slag is essential to predict its performance during long-term disposal. In this paper, the stability of six plasma treated surrogate cemented concentrates or resins in a high pH environment is investigated. The slags were crushed (2 different granulometries) and immobilized in a cement matrix, after which samples were submitted to long-term durability tests (stability under water at 20 °C; stability in a high relative humidity environment at 38 °C) and to an accelerated Alkali-Silica-Reaction (ASR) test (1 M NaOH at 80 °C). The first results show that the expansion and strength loss of the cement-slag mixtures remain limited in the test conditions, although differences between the different materials and granulometries could be perceived. No visual damage was observed. Some tests are still ongoing and will last 2 years.

KW - Plasma incineration

KW - radioactive waste

KW - long-term disposal

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/37102141

U2 - doi.org/10.1557/adv.2019.478

DO - doi.org/10.1557/adv.2019.478

M3 - Article

JO - MRS Advances

T2 - MRS Advances

JF - MRS Advances

SN - 2059-8521

ER -

ID: 6021291