Swelling Concrete in Dams and Hydraulic Structures

DSC 2017

Inbunden, Engelska, 2017

AvAlain Sellier,Alain Sellier,Étienne Grimal,Stéphane Multon,Eric Bourdarot

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The swelling of concrete is a major concern for the owners and operators of dams and hydraulic structures. Faced with irreversible movement of their dams or with observations of cracking processes, operators need to explain the phenomena observed in order to justify safety conditions and in some cases to plan remedial works. Over the last 20 years, active research has been carried out in the field, resulting in practical results in phenomena interpretation and dam modeling. At the same time, an increasing number of affected dams have undergone safety re-evaluations and in some cases remedial work. Several of them have been removed altogether. Although it remains difficult to establish a “state of the art” in this domain due to the rapidly changing context, regular international exchanges in the field appear fruitful and necessary.Following on from previous conferences in the field organized by Robin Charlwood, former President of the ICOLD Concrete Committee, the initiative was taken by EDF and Toulouse University-LMDC to organize a workshop to provide a new opportunity for sharing experience. The aim of this workshop is to assemble active researchers, leading engineers, and experts from the practicing community and administration interested directly or indirectly in concrete swelling effects in dams and hydraulic structures. All types of chemical expansion phenomena, including those due to alkali aggregate reactions and those due to ettringite formation, are addressed.These proceedings include 24 papers written by experts renowned in their field, illustrating the need to progress with interdisciplinary approaches.

Produktinformation

Utgivningsdatum2017-07-14
Mått163 x 239 x 25 mm
Vikt703 g
FormatInbunden
SpråkEngelska
Antal sidor384
FörlagISTE Ltd and John Wiley & Sons Inc
ISBN9781786302137

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PrefaceAlain Sellier, Étienne Grimal, Stéphane Multon, Éric BourdarotChapter 1 International Context 1A Review of the Effectiveness of Strategies to Manage Expansive Chemical Reactions in Dams and Hydro ProjectsRobin Charlwood, Ian Sims 3Swelling Dams in SwitzerlandFrancesco Amberg, Roger Bremen, Patrice Droz, Raphaël Leroy, Johannes Maier, Bastian Otto 40Chapter 2 Physico-Chemical Mechanisms Experimental Test 53Behavior of Concrete Deteriorated by ASR under Triaxial LoadAdrien Hilaire, Alain B. Giorla, Cyril Dunant, Lionel Sofia, Karen Scrivener 55Importance of Alkali-Wrapping for CPT Kazuo Yamada, Yuichiro Kawabata, Shoichi Ogawa, Kengo Haga, Yasutaka Sagawa, T. Ochiai 68Structures Damaged by ASR and DEF: Improving the Prognosis of Structures Damaged by Expansive Concrete with Physico-Chemical ModellingStéphane Multon, Alain Sellier, Étienne Grimal, Éric Bourdarot 80Can Certain Alkali Minerals Explain the Slow Reactivity of Granitic Aggregates in Dams?Antonio Santos Silva, Isabel Fernandes, Ana Rita Ferraz, Dora Soares 93Experimental Study on Effects of Aggregates Mineralogical Composition and Preservation Conditions on DEF in Concrete Marie Malbois, Loic Divet, Stéphane Lavaud, Jean-michel Torrenti 106The Identification, Extent and Prognosis of Alkali-Aggregate Reaction Related to Existing Dams in Switzerland Russel Michael Gunn, Karen Scrivener, Andreas Leemann 117Experimental Evidence for the Link Between Aggregate Degradation and Expansion and the Formulation of the Microstructural ModelCyril Dunant, Karen Scrivener 144A Robust Testing Protocol for the Assessment of ASR Reactivity of ConcreteLionel Sofia, Theodore Chappex, Cyril Dunant, Karen Scrivener 153Chapter 3 Structural Modeling 161Modeling of Environmental Conditions and their Impact on the Expansion of Concrete Affected by the Alkali–Silica ReactionYuichiro Kawabata, Kazuo Yamada, Shoichi Ogawa 163Nonlinear Finite Elements for the Assessment of Hydraulic Concrete Structures Affected by Alkali-Aggregate Reaction: A Study CaseMahdi Ben Ftima, Pierre Léger, Fateh Boussaha 176Macro-Modelling of AAR-Affected Hydraulic Structures: Assessment of Parameters Influencing the In-Situ Concrete GrowthVladimir Gocevski, Emre Yildiz 188AAR and DEF Structural Effects ModellingÉtienne Grimal, Pierre Morenon, Alain Sellier, Stéphane Multon, Éric Bourdarot 203Swelling Effects in Fagilde Dam (Portugal): First Approach to Structural Analysis and InterpretationJosé Piteira Gomes, Antonio Lopez Batista, S.P.M Sousa 218Expansions in a Concrete Dam with Bridge over Spillway in South America: Case Study with Expansions of Different OriginAna Blanco, Sergio H.P. Cavalaro, Ignacio Segura, Luis Segura-castillo, Antonio Aguado 235Modeling Concrete Expansions via Coupled C-M Mesoscale Analysis with Zero-Thickness Interface Elements, and Lab ExperimentsIgnacio Carol, Joaqin Liaudat, Carlos M. López 248Chapter 4 Dams and Hydraulic Structures Applications Remedial Works 261Numerical Analysis of AAR Affected Structures with Slot-Cuts: Finite Element Analysis Using Explicit SchemeVladimir Gocevski, Emre Yildiz 263Swelling Arch Dams with Thrust BlocksGrégory Coubard, Jérôme Sausse 277Bimont Dam Case: Studies and Investigations Inside the Dam BodyChristine Noret, Katia Laliche 289Chambon Dam: A Struggle against AAR Olivier Chulliat, Étienne Grimal, Éric Bourdarot 305Chapter 5 Long-Term Behavior Risk Reduction 319The Diagnosis and Prognosis of ASR and ISR in Miranda Dam, PortugalJoão Custódio, José Ilídio Ferreira, Antonio Santos Silva, António Bettencourt Ribeiro, António Lopes Batista 321Long-Term Behaviour of EDF Dams Regarding Concrete Swelling Structures: Synthesis of Monitoring Data Over TimeThierry Guilloteau, François Martinot, Jérôme Sausse 338Important Lessons Learnt from the Proper Surveillance of Swelling ConcreteLouis Christian Hattingh, Chris Oosthuizen, Ilidio Tembe, C.N. Mahlabela 352Index of Authors 367

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