Construction of realistic NPP containment wall mock-up for challenging NDE methods

Miguel Ferreira; Edgar Bohner; Ville Sjöblom; Fahim Al-Neshawy; Teemu Ojala

Construction of realistic NPP containment wall mock-up for challenging NDE methods

Miguel Ferreira^*
, Edgar Bohner
, Ville Sjöblom
, Fahim Al-Neshawy
, Teemu Ojala

^*Corresponding author for this work

Aalto University

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

2 Citations (Scopus)

Abstract

The renewal of an operating license requires that nuclear power plants (NPP) demonstrate that their facilities are ageing under controlled conditions. Non-destructive examination (NDE) provides crucial support for ageing management programs, where the renewal of an operation licence generates new challenges for the condition assessment of NPP concrete structures. In addition, the inspection of NPP concrete structures present challenges different from those of conventional civil engineering structures. Finnish research on NDE for NPP concrete infrastructure (Research Project WANDA Non-Destructive Examination of Nuclear Power Plant Primary Circuit Components and Concrete Infrastructure) focuses on the evaluation, calibration and validation of the available NDE methods and monitoring systems for concrete structures. This is achieved through the design and construction of a real-scale mock-up of a reinforced concrete containment wall for NDE, monitoring, R&D and education purposes. The mock-up represents a NPP reinforced concrete containment wall with simulated defects such as dimensional errors, construction errors, honeycombing, cracking, delamination due to structure stresses or deterioration mechanisms, embedded foreign objects in the concrete, voids adjacent to liner, and defects in grouted tendon ducts for the post-tensioned structures. The aim of this paper is to present the conceptual design of the mock-up, and provide some insight into its recent construction.

Original language	English
Title of host publication	Proceedings of the fib Symposium 2019
Subtitle of host publication	Concrete - Innovations in Materials, Design and Structures
Editors	Wit Derkowski, Piotr Krajewski, Piotr Gwozdziewicz, Marek Pantak, Lukasz Hojdys
Publisher	FIB fédération internationale du béton
Pages	1651-1658
ISBN (Print)	978-2-9406-4300-4
Publication status	Published - 1 Jan 2019
MoE publication type	A4 Article in a conference publication
Event	fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures - Krakow, Poland Duration: 27 May 2019 → 29 May 2019

Conference

Conference	fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures
Country/Territory	Poland
City	Krakow
Period	27/05/19 → 29/05/19

Funding

The authors of this paper would like to acknowledge the funding received from the Finnish National Research Programme on Nuclear Power Plant Safety (SAFIR2018). Furthermore, the authors acknowledge the valuable contributions provided by the following Finnish industry partners Peikko Oy, Ruskon Betoni Oy, Fira Oy, Teollisuuden Voima Oy and RF SensIT Oy.

Keywords

Concrete
Infrastructure
NDE
Nuclear power plant
Performance testing

Cite this

Ferreira, M., Bohner, E., Sjöblom, V., Al-Neshawy, F., & Ojala, T. (2019). Construction of realistic NPP containment wall mock-up for challenging NDE methods. In W. Derkowski, P. Krajewski, P. Gwozdziewicz, M. Pantak, & L. Hojdys (Eds.), Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures (pp. 1651-1658). FIB fédération internationale du béton.

Ferreira, Miguel ; Bohner, Edgar ; Sjöblom, Ville et al. / Construction of realistic NPP containment wall mock-up for challenging NDE methods. Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. editor / Wit Derkowski ; Piotr Krajewski ; Piotr Gwozdziewicz ; Marek Pantak ; Lukasz Hojdys. FIB fédération internationale du béton, 2019. pp. 1651-1658

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abstract = "The renewal of an operating license requires that nuclear power plants (NPP) demonstrate that their facilities are ageing under controlled conditions. Non-destructive examination (NDE) provides crucial support for ageing management programs, where the renewal of an operation licence generates new challenges for the condition assessment of NPP concrete structures. In addition, the inspection of NPP concrete structures present challenges different from those of conventional civil engineering structures. Finnish research on NDE for NPP concrete infrastructure (Research Project WANDA Non-Destructive Examination of Nuclear Power Plant Primary Circuit Components and Concrete Infrastructure) focuses on the evaluation, calibration and validation of the available NDE methods and monitoring systems for concrete structures. This is achieved through the design and construction of a real-scale mock-up of a reinforced concrete containment wall for NDE, monitoring, R\&D and education purposes. The mock-up represents a NPP reinforced concrete containment wall with simulated defects such as dimensional errors, construction errors, honeycombing, cracking, delamination due to structure stresses or deterioration mechanisms, embedded foreign objects in the concrete, voids adjacent to liner, and defects in grouted tendon ducts for the post-tensioned structures. The aim of this paper is to present the conceptual design of the mock-up, and provide some insight into its recent construction.",

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author = "Miguel Ferreira and Edgar Bohner and Ville Sj{\"o}blom and Fahim Al-Neshawy and Teemu Ojala",

note = "Publisher Copyright: {\textcopyright} Federation Internationale du Beton (fib) - International Federation for Structural Concrete, 2019. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.; fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures ; Conference date: 27-05-2019 Through 29-05-2019",

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Ferreira, M , Bohner, E , Sjöblom, V, Al-Neshawy, F & Ojala, T 2019, Construction of realistic NPP containment wall mock-up for challenging NDE methods. in W Derkowski, P Krajewski, P Gwozdziewicz, M Pantak & L Hojdys (eds), Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. FIB fédération internationale du béton, pp. 1651-1658, fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures, Krakow, Poland, 27/05/19.

Construction of realistic NPP containment wall mock-up for challenging NDE methods. / Ferreira, Miguel ; Bohner, Edgar ; Sjöblom, Ville et al.
Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. ed. / Wit Derkowski; Piotr Krajewski; Piotr Gwozdziewicz; Marek Pantak; Lukasz Hojdys. FIB fédération internationale du béton, 2019. p. 1651-1658.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Construction of realistic NPP containment wall mock-up for challenging NDE methods

AU - Ferreira, Miguel

AU - Bohner, Edgar

AU - Sjöblom, Ville

AU - Al-Neshawy, Fahim

AU - Ojala, Teemu

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The renewal of an operating license requires that nuclear power plants (NPP) demonstrate that their facilities are ageing under controlled conditions. Non-destructive examination (NDE) provides crucial support for ageing management programs, where the renewal of an operation licence generates new challenges for the condition assessment of NPP concrete structures. In addition, the inspection of NPP concrete structures present challenges different from those of conventional civil engineering structures. Finnish research on NDE for NPP concrete infrastructure (Research Project WANDA Non-Destructive Examination of Nuclear Power Plant Primary Circuit Components and Concrete Infrastructure) focuses on the evaluation, calibration and validation of the available NDE methods and monitoring systems for concrete structures. This is achieved through the design and construction of a real-scale mock-up of a reinforced concrete containment wall for NDE, monitoring, R&D and education purposes. The mock-up represents a NPP reinforced concrete containment wall with simulated defects such as dimensional errors, construction errors, honeycombing, cracking, delamination due to structure stresses or deterioration mechanisms, embedded foreign objects in the concrete, voids adjacent to liner, and defects in grouted tendon ducts for the post-tensioned structures. The aim of this paper is to present the conceptual design of the mock-up, and provide some insight into its recent construction.

AB - The renewal of an operating license requires that nuclear power plants (NPP) demonstrate that their facilities are ageing under controlled conditions. Non-destructive examination (NDE) provides crucial support for ageing management programs, where the renewal of an operation licence generates new challenges for the condition assessment of NPP concrete structures. In addition, the inspection of NPP concrete structures present challenges different from those of conventional civil engineering structures. Finnish research on NDE for NPP concrete infrastructure (Research Project WANDA Non-Destructive Examination of Nuclear Power Plant Primary Circuit Components and Concrete Infrastructure) focuses on the evaluation, calibration and validation of the available NDE methods and monitoring systems for concrete structures. This is achieved through the design and construction of a real-scale mock-up of a reinforced concrete containment wall for NDE, monitoring, R&D and education purposes. The mock-up represents a NPP reinforced concrete containment wall with simulated defects such as dimensional errors, construction errors, honeycombing, cracking, delamination due to structure stresses or deterioration mechanisms, embedded foreign objects in the concrete, voids adjacent to liner, and defects in grouted tendon ducts for the post-tensioned structures. The aim of this paper is to present the conceptual design of the mock-up, and provide some insight into its recent construction.

KW - Concrete

KW - Infrastructure

KW - NDE

KW - Nuclear power plant

KW - Performance testing

UR - https://www.scopus.com/pages/publications/85066064734

M3 - Conference article in proceedings

AN - SCOPUS:85066064734

SN - 978-2-9406-4300-4

SP - 1651

EP - 1658

BT - Proceedings of the fib Symposium 2019

A2 - Derkowski, Wit

A2 - Krajewski, Piotr

A2 - Gwozdziewicz, Piotr

A2 - Pantak, Marek

A2 - Hojdys, Lukasz

PB - FIB fédération internationale du béton

T2 - fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures

Y2 - 27 May 2019 through 29 May 2019

ER -

Ferreira M , Bohner E , Sjöblom V, Al-Neshawy F, Ojala T. Construction of realistic NPP containment wall mock-up for challenging NDE methods. In Derkowski W, Krajewski P, Gwozdziewicz P, Pantak M, Hojdys L, editors, Proceedings of the fib Symposium 2019: Concrete - Innovations in Materials, Design and Structures. FIB fédération internationale du béton. 2019. p. 1651-1658

Construction of realistic NPP containment wall mock-up for challenging NDE methods

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