Effective combination of DIC, AE, and UPV nondestructive techniques on a scaled model of the Belgian nuclear waste container

Sokratis Iliopoulos, Lou Areias, Lincy Pyl, Johnny Vantomme, Philippe Van Marcke, Erik Coppens, Dimitrios Angelis

Research output: Chapter in Book/Report/Conference proceedingConference paperResearch

3 Citations (Scopus)

Abstract

Protecting the environment and future generations against the potential hazards arising from high-level and heat emitting radioactive waste is a worldwide concern. Following this direction, the Belgian Agency for Radioactive Waste and Enriched Fissile Materials has come up with the reference design which considers the geological disposal of the waste in purely indurated clay. In this design the wastes are first post-conditioned in massive concrete structures called Supercontainers before being transported to the underground repositories. The Supercontainers are cylindrical structures which consist of four engineering barriers that from the inner to the outer surface are namely: the overpack, the filler, the concrete buffer and possibly the envelope. The overpack, which is made of carbon steel, is the place where the vitrified wastes and spent fuel are stored. The buffer, which is made of concrete, creates a highly alkaline environment ensuring slow and uniform overpack corrosion as well as radiological shielding. In order to evaluate the feasibility to construct such Supercontainers two scaled models have so far been designed and tested. The first scaled model indicated crack formation on the surface of the concrete buffer but the absence of a crack detection and monitoring system precluded defining the exact time of crack initiation, as well as the origin, the penetration depth, the crack path and the propagation history. For this reason, the second scaled model test was performed to obtain further insight by answering to the aforementioned questions using the Digital Image Correlation, Acoustic Emission and Ultrasonic Pulse Velocity nondestructive testing techniques.
Original languageEnglish
Title of host publicationSmart Sensor Phenomena, Technology, Networks, and Systems Integration 2015
EditorsKara Peters
PublisherSPIE
Pages11-20
Number of pages10
Volume9436
ISBN (Print)9781628415391
DOIs
Publication statusPublished - 13 Apr 2015
EventSmart Sensor Phenomena, Technology, Networks, and Systems Integration 2015 - San Diego, CA, United States
Duration: 9 Mar 201510 May 2015

Conference

ConferenceSmart Sensor Phenomena, Technology, Networks, and Systems Integration 2015
Country/TerritoryUnited States
CitySan Diego, CA
Period9/03/1510/05/15

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