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Proceedings pro017 : International RILEM Workshop on Shrinkage of Concrete (Shrinkage 2000)


Title: International RILEM Workshop on Shrinkage of Concrete (Shrinkage 2000)
Edited by V. Baroghel-Bouny and P.-C. Aïtcin
ISBN: 2-912143-20-9
e-ISBN: 2351580311
Pages: 586
Publication date: 2000

Following the International Workshop on autogenous shrinkage of concrete "Autoshrink' 98" organised by the Japan Concrete Institute in Hiroshima (Japan, 1998) and the International Research Seminars on self-desiccation and its importance in concrete technology in Lund (Sweden, 1997 and 1999), the International RILEM Workshop on Shrinkage of Concrete "Shrinkage 2000" have been hold in Paris, in October 2000. This workshop have dealt with different aspects relative to autogenous and drying shrinkage, including the effect of mixture composition, influence of moisture, size-effects, ....

Therefore, why is so much effort presently devoted to the study of a phenomenon known for such a long time? Why organise another international workshop on shrinkage?

What do we know exactly about shrinkage in the year 2000?

Do we know how to measure shrinkage precisely? Are we measuring the right things?

These are some of the questions that have been raised and discussed during this workshop, with the leading objectives to:
- analyse and discuss autogenous and drying shrinkage mechanisms, in order to explain the peculiar behaviour of these new concretes,
- propose new and relevant testing methods, in order to assess the different components of the deformations of concrete.
- promote tools for a better prediction of the deformations of concrete structures,
- prevent negative effects of shrinkage (early-age cracking, ...) and prepare ad-hoc recommendations.


Contents


Preface
Author(s): V. Baroghel-Bouny, P.-C. Aïtcin
Pages: XIII - XV

Invited presentations


Early age shrinkage and cracking in cementitious systems
Author(s): A. Bentur
Pages: 1 - 20

Work of JCI Committee on autogenous shrinkage
Author(s): E.I. Tazawa, R. Sato, E. Sakai, S. Miyazawa
Pages: 21 - 40

Session 1: Early age behaviour (mechanisms and physical aspects)


Interaction between thermal dilation and autogenous deformation in high performance concrete
Author(s): Ø. Bjøntegaard, E.J. Sellevold
Pages: 43 - 55

Correlating the deviation point between externel and total chemical shrinkage with setting time and other characteristics of hydrating cement paste
Author(s): H. Justnes, F. Clemmens, P. Depuydt, D. van Gemert, E.J. Sellevold
Pages: 57 - 73

Effect of silica fume on the plastic shrinkage and pore water pressure of high-strengh concretes
Author(s): T.A. Hammer
Pages: 75 - 89

Dissolution of cement and early chemical shrinkage of cement paste
Author(s): F. Beltzung, F.H. Wittmann
Pages: 91 - 97

Session 2: Effect of mixture composition on deformations


Effect of silica fume on early age crack sensitivity of high performance concrete
Author(s): T. Kanstad, Ø. Bjøntegaard, E.J. Sellevold, T.A. Hammer, P. Fidjestøl
Pages: 101 - 114

Effect of mix-parameters on autogenous deformations of cement pastes - Microstructural interpretations
Author(s): V. Baroghel-Bouny, A. Kheirbek
Pages: 115 - 141

Influence of cement composition on autogenous deformation and change of the relative humidity
Author(s): O.M. Jensen
Pages: 143 - 153

Study on shrinkage of concrete with slag composite admixture
Author(s): J. Han, X. Zhang, Y. Li
Pages: 155 - 160

Effect of mixture composition and size effect on shrinkage of high strength concrete
Author(s): K. van Breugel, H. Ouwerkerk
Pages: 161 - 177

Influence of binders and admixtures on autogenous shrinkage of high performance concrete
Author(s): P. Schießl, M. Plannerer, C. Brandes
Pages: 179 - 190

Shrinkage and strength of self-compacting concrete with different kinds of filler
Author(s): B. Persson
Pages: 191 - 212

Session 3: Influence of moisture on shrinkage


Experimental study on drying shrinkage of ordinary and high-performance cementious materials
Author(s): V. Baroghel-Bouny
Pages: 215 - 232

Influence of specimen size and relative humidity on shrinkage of high-strength concrete
Author(s): S. Miyazawa, E.I. Tazawa
Pages: 233 - 246

Early-age evolution of the mass transfer properties in mortar and its influence upon ultimate shrinkage
Author(s): J. Therrien, B. Bissonnette, A. Cloutier
Pages: 247 - 268

Session 4: Modelling


Numerical modelling of volume changes at early ages - Potential, pitfalls and challenges
Author(s): K. van Breugel
Pages: 271 - 286

Poromechanical modelling of shrinkage and damage processes in unsaturated porous media
Author(s): J. Carmeliet, K. van Den Abeele
Pages: 287 - 298

Shrinkage and internal damage induced by drying and endogenous drying
Author(s): H. Sadouki, F.H. Wittmann
Pages: 299 - 314

Coupling damage - Drying shrinkage: Experimental study and modelling
Author(s): N. Burlion, F. Bourgeois, J.F. Shao
Pages: 315 - 339

An elasto-plastic damage approach for the modeling of concrete submitted to the mechanical induced effects of drying
Author(s): F. Meftah, J.M. Torrenti, W. Nechnech, F. benboudjema, C. de Sa
Pages: 341 - 354

Effect on stress development of restrained thermal and moisture deformation
Author(s): H. Hedlund, J.-E. Jonasson
Pages: 355 - 377

Session 5: New testing methods


A new method to measure the early-age deformation of cement based materials
Author(s): B. Miao
Pages: 381 - 386

Early age shrinkage of mortars: conception of a new device and detailed analysis of a typical experimental curve
Author(s): E. Fourdrin, C. Guigou, J. Chappuis
Pages: 387 - 400

A method for the examination of geometrical changes in cement paste
Author(s): L. Kraft, L. Hermansson, G. Gómez-Ortega
Pages: 401 - 413

Session 6: Application to practice (control of deformations and cracking, structures)


Cracking behaviour of reinforced concrete subjected to early-age shrinkage
Author(s): M. Sule, K. van Breugel
Pages: 417 - 434

Methods of reducing early-age shrinkage
Author(s): E.E. Holt, M.T. Leivo
Pages: 435 - 447

Influence of the curing regime and of a shrinkage reducing admixture on shrinkage
Author(s): V. Seigneur, O. Bonneau, P.C. Aïtcin
Pages: 449 - 460

In-situ shrinkage in high-performance concrete structures
Author(s): N. Petrov, R. Morin, O. Bonneau, P.-C. Aïtcin
Pages: 461 - 476

Simulating the effect of shrinkage on concrete structures
Author(s): A. van Beek, E. Schlangen
Pages: 477 - 492

The analysis of shrinkage behavior of SCC and OPC under various weather conditions
Author(s): Y.-W. Chan, J.-C. Chern, C.-Y. Hong, J.-W. Lue
Pages: 493 - 505

An engineering model for creep and shrinkage in high performance concrete
Author(s): J.-E. Jonasson, H. Hedlund
Pages: 507 - 529

Poster session


Moisture exchange as a basic phenomenon to understand volume changes of lightweight aggregate concrete at early age
Author(s): P. Lura, K. van Breugel
Pages: 533 - 546

Study on autogenous shrinkage and AC impedance of paste with additives
Author(s): X. Zhang, Y. Li, K. Wu
Pages: 547 - 557

Chemical shrinkage in cement and sludge ash systems
Author(s): V.W. Rohde, K.K. Hansen
Pages: 559 - 567