About: Sprayed clay technology for the deep repository of high-level radioactive waste

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About: Sprayed clay technology for the deep repository of high-level radioactive waste Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://rgnzborad.rgn.hr/012_1_4.pdf
Description	The sealing barrier will play very important role in the Czech disposal concept of high level radioactive waste. It follows Swedish SKB3 design where granitic rock environment will host the repository. Swelling clay based materials as the most favorable for sealing purposes were selected. Such clays must fulfill certain requirements (e.g. on swelling properties, hydraulic conductivity or plasticity) and must be stable for thousands of years. Better sealing behavior is obtained when the clay is compacted. Technology of the seal construction can vary according to its target dry density. Very high dry density is needed for buffer (sealing around entire canister with radioactive waste). Less strict equirements are on material backfilling the access galleries. It allows compaction to lower dry density than in case of buffer. One of potential technology for backfilling is to compact clay layers in most of the gallery profile by common compaction machines (rollers etc.) and to spray clay into the uppermost part afterwards. The paper introduces the research works on sprayed clay technology performed at the Centre of Experimental Geotechnics of the Czech Technical University in Prague. Large scale in situ demonstration of filling of short drift in the Josef Gallery is also mentioned. The sealing barrier will play very important role in the Czech disposal concept of high level radioactive waste. It follows Swedish SKB3 design where granitic rock environment will host the repository. Swelling clay based materials as the most favorable for sealing purposes were selected. Such clays must fulfill certain requirements (e.g. on swelling properties, hydraulic conductivity or plasticity) and must be stable for thousands of years. Better sealing behavior is obtained when the clay is compacted. Technology of the seal construction can vary according to its target dry density. Very high dry density is needed for buffer (sealing around entire canister with radioactive waste). Less strict equirements are on material backfilling the access galleries. It allows compaction to lower dry density than in case of buffer. One of potential technology for backfilling is to compact clay layers in most of the gallery profile by common compaction machines (rollers etc.) and to spray clay into the uppermost part afterwards. The paper introduces the research works on sprayed clay technology performed at the Centre of Experimental Geotechnics of the Czech Technical University in Prague. Large scale in situ demonstration of filling of short drift in the Josef Gallery is also mentioned. (en)
Title	Sprayed clay technology for the deep repository of high-level radioactive waste Sprayed clay technology for the deep repository of high-level radioactive waste (en)
skos:prefLabel	Sprayed clay technology for the deep repository of high-level radioactive waste Sprayed clay technology for the deep repository of high-level radioactive waste (en)
skos:notation	RIV/68407700:21110/12:00201520!RIV13-MSM-21110___
http://linked.open...avai/riv/aktivita	S
http://linked.open...avai/riv/aktivity	S
http://linked.open...iv/cisloPeriodika	24
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Hausmannová, Lucie Vašíček, Radek Šťástka, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	170635
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/12:00201520
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	bentonite; backfill; sprayed clay technology (en)
http://linked.open.../riv/klicoveSlovo	bentonite backfill sprayed clay technology
http://linked.open...odStatuVydavatele	HR - Chorvatská republika
http://linked.open...ontrolniKodProRIV	[2D73F08A9B2B]
http://linked.open...i/riv/nazevZdroje	Rudarsko-Geološko-Naftni Zbornik
http://linked.open...in/vavai/riv/obor	JN
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...UplatneniVysledku	2012
http://linked.open...v/svazekPeriodika	2012 (24)
http://linked.open...iv/tvurceVysledku	Hausmannová, Lucie Vašíček, Radek Šťástka, Jiří
issn	0353-4529
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	21110

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