SWS Academic Research eLibraryEarth & Planetary Sciences

Scholarly record

HYGRIC PROPERTIES OF CONCRETE CASING FOR RADIOACTIVE WASTE DEPOSITION

Petr Konvalinka

First published: 2018-11-20https://doi.org/10.5593/sgem2018v/4.3/s04.001View metrics

Abstract

This paper presents the results of an experimental study of concrete designed as a secondary barrier for radioactive waste deposition. Sorption materials, such as natural zeolite, have very good encapsulation ability to certain ions, which can be harmful for the environment, such as 137Cs. Incorporation of natural zeolite into concrete may increase the protection ability of secondary barriers against radionuclide release. Determination of water-transport- and water vapour transport properties of such concrete can present an important indicator of concrete quality, in particular in the link to its basic physical properties. In this study, concrete mixtures containing various amounts of natural zeolite (clinoptilolite) were prepared. For the reference mixture, there was only cement used as a binder. In the other mixtures, 10% of natural zeolite was added to take part in the hydration due to its pozzolanity. The excess amount of natural zeolite played as an inert filler with sorption properties. The experimental results show an increasing trend of the open porosity with the addition of natural zeolite, which can also be seen on a gradual decrease of both, bulk and matrix density. Consequently, both water transport and water vapour transport are enhanced with the increasing amount of natural zeolite in the concrete mixture.

Publication Impact Profile

PlumX
  • Captures
  • Mendeley - Readers: 2
PLUMX see details

Publication details

Title
HYGRIC PROPERTIES OF CONCRETE CASING FOR RADIOACTIVE WASTE DEPOSITION
Authors
Petr Konvalinka
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th SGEM International Multidisciplinary Scientific GeoConference SGEM2018, Energy and Clean Technologies
Publisher
STEF92 Technology
Year
2018
Pages
3-10
SWS Citekey
Konvalinka20184310
ISSN
1314-2704
ISBN
978-619-7408-70-6
Language
en
Publication type
Conference Paper
Keywords
concrete casingradioactive waste depositionbasic physical propertiesmechanical propertieswater transport properties
References0
0references registered for this publication

Structured references will appear here after the reference import pass. The count is preserved now so the scholarly record is not incomplete.

View or Download full articleAccess options
Full paper accessChoose SWS login, librarian support, or instant article download.

SWS access login

Login as SWS Scientific Committee

Authors and approved SWS contributors will read and export their own linked papers after identity matching by SWS profile, email and SGEM GlobalID.

For librarian assistance: [email protected]

Purchase Instant Access

48-hour online accessComing soon
Online-only accessComing soon
Download the full article in PDF formatEUR 35
  • Article can be downloaded after successful payment.
  • Article may be used according to SWS library access terms.
  • Article cannot be redistributed.
Get full paper

Back to publication list