Proceedings pro058 : International RILEM Symposium on Concrete Modelling - ConMod'08

Title: International RILEM Symposium on Concrete Modelling - ConMod'08 Edited by E. Schlangen and G. De Schutter ISBN: 978-2-35158-060-8 e-ISBN: 978-2-35158-076-9 Pages: 844 Publication date: 2008

It was at the end of a Gordon Conference in Italy, in the late nineties, that Professor Wittmann kindly offered me a lift to Pisa. During that trip we discussed the idea of organizing an international workshop on concrete modelling. Modelling of concrete at different scales and with input from different disciplines. Obviously our trip was too short to fix a date already. Probably we both intuitively felt that, in spite of our excitement about such an event, every-day business would not leave us with time to organize it. But the idea was there and, fortunately, this time postponement did not lead to cancellation. A couple of years later I discussed the idea with colleagues from Switzerland, USA, Canada, Japan and Belgium. Their positive reactions made us deciding to set the preparations for a concrete modelling conference in motion.
The original plan was to organize the first CONMOD conference in 2006. However, that would have created a big overlap with a RILEM symposium in Quebec, where one of the themes was just on Concrete Modelling, the theme we were aiming at. We decided to postpone our Concrete Modelling conference with two years until 2008. Meanwhile we ‘baptized' the Quebec symposium the first CONMOD conference in a series of conferences on this particular topic. Since much progress is expected in the field of modelling in the coming decade, the intention is now to organize a series of CONMOD conferences with an interval of two years. This will enable PhD students working on this topic to attend two CONMOD conferences during their study. This is considered a good condition for making contacts with colleagues from all over the world and for intensifying these contacts if appropriate.
CONMOD conferences are supposed to be a platform for researchers active in modelling of concrete at different length scales and coming from different scientific disciplines. During the conferences the background of models will be discussed, for what purpose models are developed, the modelling concepts and computation techniques that are adopted, as well as the validation of models.
The fact that almost hundred papers were submitted to CONMOD’08 from more than twenty countries illustrates the relevance of the topic and the interest of researchers to share their ideas and results with colleagues. We do hope that sharing and discussing ideas will generate further momentum in modelling activities, break open unexpected directions in research and will, in the end, lead to improvements and innovations in materials and structural design.
CONMOD’08 is a RILEM event and has been organized jointly by the University of Genth / Magnel Laboratory and Delft University of Technology / Microlab. The organizers would like to thank all the sponsors of CONMOD’08 and the respected delegates from all over the world to make this conference a success. Finally I would like to express my appreciation for Professor Wittmann’s presence as one of our keynote speakers.

Prof.dr.ir. Klaas van Breugel
Chairman Organising Committee
April 2008, Delft, The Netherlands

Contents

Foreword Author(s): K. van Breugel

Pages: XXI - XXI

On the development of models and their application in concrete science Author(s): F.H. Wittmann

Pages: 1 - 11

Modelling damage from ice and salt Author(s): G.W. Scherer

Pages: 13 - 23

Risk management for civil engineering & oil gas infrastructures: the use of models for performance & risk assesment Author(s): B. Gérard, B. Capra, H. De Jonge

Pages: 25 - 36

Beyond multi-scale modelling Author(s): K. van Breugel

Pages: 37 - 46

Prediction of the mechanical properties of the major constituent phases of cementitious systems by atomistic simulations Author(s): H. Manzano, J.S. Dolado, A. Ayuela

Pages: 47 - 55

Model for heat release of fly ash - cement pastes Author(s): G. Baert, G. De Schutter, N. De Belie

Pages: 57 - 64

Recent advances in the determination of ionic diffusion using migration test results Author(s): E. Samson, J. Marchand, P. Henocq, P. Beauséjour

Pages: 65 - 78

Modeling adiabatic temperature rise during concrete hydration with the use of artificial neural networks Author(s): G. Trtnik, F. Kavcic, G. Turk

Pages: 79 - 86

Simulation of the particle size distribution during the early hydration of portland cement Author(s): S. Brendle, S. Erfurt, M.R. de Rooij

Pages: 87 - 94

Coupled FEM model for concrete exposed to fire loading Author(s): J. Surovec, P. Kabele, J. Cervenka

Pages: 95 - 102

Design of fire resistant concrete structures, using validated Fem models Author(s): S.J.F. Erich, A.B.M. v. Overbeek, G.H.A. v.d. Heijden, L. Pel, H.P. Huinink, A.H.J.M. Vervuurt

Pages: 103 - 110

Concrete’s behaviour modeling at high temperatures, Influence of mechanical models and study scales Author(s): C. De Sa, F. Benboudjema

Pages: 111 - 118

Modeling the microstructure change of high performance cement paste at elevated temperatures Author(s): X. Liu, G. Ye, G. De Schutter, Y. Yuan

Pages: 119 - 130

Fire spalling of concrete as studied by NMR, model validation Author(s): G.H.A. van der Heijden, L. Pel, H.P. Huinink, K. Kopinga

Pages: 131 - 138

Compressive strength evolution in early-age Portland Cement paste predicted by a micromechanical model Author(s): B. Pichler, C. Hellmich, J. Eberhardsteiner

Pages: 139 - 146

Benhur and Vi(CA)2T, two toolboxes to model concrete as an heterogeneous material combining analytical and numerical approaches Author(s): Y. Le Pape, C. Toulemonde, R. Masson, J. El Gharib

Pages: 147 - 154

Numerical modeling of Portland Cement hydration Author(s): I. Maruyama, T. Matsushita, T. Noguchi

Pages: 155 - 163

Physical & chemical modeling of the hydration kinetics of OPC paste using a semi-analytical approach Author(s): E. Guillon, J. Chen, G. Chanvillard

Pages: 165 - 172

Simulating the workability of fresh concrete Author(s): S. Shyshko, V. Mechtcherine

Pages: 173 - 181

Kinetics of ice growth in cement and concrete Author(s): Z. Sun, G.W. Scherer

Pages: 183 - 190

Characterisation and modelling of physico-chemical degradation of cement-bases materials used in oil wells Author(s): N. Neuville, E. Lecolier, G. Aouad, D. Damidot

Pages: 191 - 198

Modelling of the sulphate attack in cement-based materials Author(s): E. Rozière, A. Loukili, R. El-Hachem

Pages: 199 - 206

Modelling alkali silica reaction in concrete Author(s): R. Naar, E. Garcia-Diaz, F. Bay, P.O. Bouchard

Pages: 207 - 212

Modeling chemical degradations of cement pastes in contact with aggressive solutions: leaching and carbonation Author(s): R. Barbarulo

Pages: 213 - 223

Multi-scale time-dependent deformation model or solidifying cementitious materials coupling with aggregate properties Author(s): S. Asamoto, T. Ishida, K. Maekawa

Pages: 225 - 232

Analytical modelling of the coupling between microstructure and effective diffusivity of cement based materials Author(s): W. Dridi

Pages: 233 - 241

Amie: a new modelling framework for meso-scale simulation of concrete Author(s): C.F. Dunant, K. Scrivener

Pages: 243 - 250

Multi-scale Modelling: The Delftcode Author(s): E.A.B. Koenders, E. Schlangen, K. van Breugel

Pages: 251 - 258

Continuum microviscoelasticity of cementitious materials: upscaling technique and first experimental validation Author(s): S. Scheiner, C. Hellmich

Pages: 259 - 263

An engineering approach to the problem of natural carbonation accompanied by drying-wetting cycles Author(s): M. Thiery, V. Baroghel-Bouny, C. Crémona

Pages: 265 - 273

Chloride ingress prediction - part 1: analytical model for time dependent diffusion coefficient and surface concentration Author(s): J.M. Frederiksen, M. Geiker

Pages: 275 - 282

Chloride ingress prediction - part 2: experimentally based design parameters Author(s): J.M. Frederiksen, M. Geiker

Pages: 283 - 290

Chemo-mechanical model describing the expansion due to internal sulfate attack: numerical simulation Author(s): N. Baghdadi, J.F. Seignol, F. Toutlemonde

Pages: 291 - 298

Numerical model of Ca(OH)2 transport in concrete due to electrical currents Author(s): T. Koster, W.H.A. Peelen, J.A. Larbi, M.R. de Rooij, R.B. Polder

Pages: 299 - 306

Numerical modelling of chloride ingress for service life design of concrete structures Author(s): M.M.R. Boutz, P.E. Roelfstra, R. Haverkort, G. van der Wegen

Pages: 307 - 315

A multi-scales approach for the physico-chemical deformations of solidifying cement-based materials Author(s): F. Grondin, M. Bouasker, P. Mounanga, A. Khelidj

Pages: 317 - 324

Multiscale modelling of coupled problems in porous materials Author(s): J. Carmeliet, H. Derluyn, S. Mertens, P. Moonen

Pages: 325 - 336

Autogenous and drying shrinkage modeling: from paste to concrete Author(s): J.P Thierry, G. Chanvillard

Pages: 337 - 344

Multi-scale modeling of softening materials Author(s): O. Lloberas, A. Simone, L.J. Sluys

Pages: 345 - 352

Prediction of physical properties of concrete using mathematical model for cement hydration and microstructure formation Author(s): H. Sugiyama

Pages: 353 - 360

Model for the formation of microstructure in cement paste during hydration Author(s): R. Nothnagel, H. Budelmann

Pages: 361 - 368

Numerical experimentation with cement using µic Author(s): S. Bishnoi, K.L. Scrivener

Pages: 369 - 376

A reaction-diffusion model for simulating 3-D microstructure development of cement paste Author(s): J.W. Bullard

Pages: 377 - 384

Modeling of calcium leaching from cement hydrates coupled with microstructure formation Author(s): K. Nakarai, T. Ishida, K. Maekawa, T. Kishi

Pages: 385 - 382

Thermodynamic modelling of the effect of temperature on the hydration of Portland cement Author(s): B. Lothenbach

Pages: 393 - 400

Experimental results of cement particle growth in the early hydration stage Author(s): A. Mueller, S. Erfurt

Pages: 401 - 409

Universal modeling for hydration heat generation and strength development of arbitrarily blended cementitious materials based on multicomponent system Author(s): T. Kishi, Y. Otabe, Z. Lin

Pages: 411 - 418

Modeling of hydration of Portland Cements incorporating supplementary cementing materials Author(s): K. Park, H. Lee, X. Wang

Pages: 419 - 427

Stability analysis of moisture influential depth in concrete under drying-wetting cycles Author(s): C. Li, K. Li, Z. Chen

Pages: 429 - 437

Modelling of chloride penetration in concrete with artificial cracks Author(s): K. Audenaert, G. De Schutter, L. Marsavina

Pages: 439 - 446

Enhanced modeling of moisture equilibrium and transport in cementitious materials under arbitrary temperature and relative humidity history Author(s): T. Ishida, K. Maekawa, T. Kishi

Pages: 447 - 454

Modelling of chloride transport coupled with moisture migration in concrete with application to cracked concrete structures Author(s): P. O’Neill Iqbal, T. Ishida

Pages: 455 - 462

Application of reactive transport models in cement-based porous media Author(s): J. van der Lee, L. De Windt, V. Lagneau

Pages: 463 - 470

The use of geometrically based particle packing models with fine particles Author(s): S.A.A.M. Fennis, J.C. Walraven, J.A. den Uijl

Pages: 471 - 478

Computer simulation of arbitrary-shaped grains and application to aggregate packing in concrete Author(s): H. He, Z. Guo, W. Yang, M. Stroeven, P. Stroeven, L.J. Sluys

Pages: 479 - 486

Computed X-ray microtomography on cementitious materials: possibilities and limitations Author(s): V. Boel, V. Cnudde, G. De Schutter, B. Van Meel, B. Masschaele, Y. Guang, L. Van Hoorebeke, P. Jacobs

Pages: 487 - 494

Mesoscopic analyses of porous concrete under static compression and drop weight impact tests Author(s): A.S. Agar Ozbek, R.R. Pedersen, J. Weerheijm, A. Simone, K. van Breugel, B. Sluys

Pages: 495 - 502

Prediction of concrete compressive strength Author(s): D. Mikulic, I. Gabrijel, B. Milovanovic

Pages: 503 - 510

3D Simulation of moisture transport in cement mortars Author(s): M. Koster, J. Hannawald, W. Brameshuber

Pages: 511 - 520

Application of the sharp front model to capillary absorption in concrete materials with bimodal pore size distribution Author(s): I. Ioannou, C. Hall, A. Hamilton

Pages: 521 - 525

The effect of moiture transport and sorption hystersis on ionic multispecies diffusion in concrete Author(s): B. Johannesson, Y. Hosokawa, K. Yamada

Pages: 527 - 534

Modelling of moisture and salt transport incorporating salt crystallization in porous media Author(s): H. Derluyn, P. Moonen, J. Carmeliet

Pages: 535 - 542

A development of a multi-species mass transport model considering thermodynamic phase equilibrium Author(s): Y. Hosokawa, K. Yamada, B. Johannesson, L.O. Nilsson

Pages: 543 - 550

Multiscale framework to model fibre reinforced cementitious composite and study its microstructure Author(s): F.K.F. Radtke, A. Simone, M. Stroeven, L.J. Sluys

Pages: 551 - 558

On the mesomechanical modelling of plain concrete with different grain-size distribution Author(s): T. Sadowski, G.L. Golewski

Pages: 559 - 566

3D modelling of fracture in concrete based on CT-scan observation Author(s): E. Schlangen

Pages: 567 - 575

Damage model for normal & high strength concrete Author(s): A.R. Khan, N. Naseem

Pages: 577 - 584

Results of a macroscopic simulation of saturated lightweight aggregates (LWAs) and superabsorbent polymers (SAPs) as internal water sources Author(s): H.W. Reinhardt, S. Mönnig

Pages: 585 - 593

Dependence between capillary stress and autogenous shrinkage for high-strength cement pastes Author(s): S. Zhutovsky, K. Kovler

Pages: 595 - 602

Modelling autogenous shrinkage of hydrating cement paste Author(s): I. Jaouadi, A. Guidoum, K. Scrivener

Pages: 603 - 609

Inter-particle moisture movement during cement hydration Author(s): H.W.M. van der Ham, E.A.B. Koenders, K. van Breugel

Pages: 611 - 618

Effective elastic properties of degraded and non degraded cement pastes using various micromechanics schemes and numerical simulations Author(s): M. Ben Haha, B. Bary, E. Adam, P. Montarnal

Pages: 619 - 627

Prediction of tensile strength of cement paste based on a micromechanical model Author(s): L. Tan, Z. Qian, G. Ye, E. Schlangen

Pages: 629 - 636

Simulation of 3D cracks propagation in cement paste Author(s): Z. Qian, G. Ye, E. Schlangen

Pages: 637 - 646

Failure process in concrete under static and impact tensile loading: experiments and numerical modelling Author(s): I. Vegt, R.R. Pedersen, J. Weerheijm, L.J. Sluys, A. Simone

Pages: 647 - 656

On influence of microstructure parameters on cement paste performance: results from micromechanical modelling and optimization Author(s): V. Smilauer, M.J. Leps, Z. Vitingerová

Pages: 657 - 663

Modelling of simultaneous temperature and moisture transportation in modern concrete Author(s): J.E. Jonasson, K. Mjörnell, C.A. Carlsson

Pages: 665 - 672

Capillary pressure and cracking in early age concrete Author(s): V. Slowik, T. Hübner, B. Villmann, M. Schmidt

Pages: 673 - 680

Drying shrinkage of concrete, can it be used for modelling autogenous shrinkage? Author(s): R. Haverkort, P. Roelfstra, E. Schlangen

Pages: 681 - 689

Mesoscopic analysis of drying shrinkage damage in a cementitious material Author(s): P. Moonen, R.R. Pedersen, A. Simone, L.J. Sluys, J. Carmeliet

Pages: 691 - 698

Modeling of relaxation in bonded concrete overlays subject to differential volume changes Author(s): J. Zhou, G. Ye, E. Schlangen, K. van Breugel

Pages: 699 - 706

Comments on the shrinkage of paste in mortar containing saturated lightweight aggregate Author(s): R. Henkensiefken, G. Sant, T. Nantung, J. Weiss

Pages: 707 - 714

Modeling moisture warping in concrete pavement Author(s): W. Hansen, Y. Wei, E. Schlangen

Pages: 715 - 723

Prediction of autogenous shrinkage of concrete at early age using percolation Author(s): J.M. Torrenti, F. Benboudjema, L. Stefan

Pages: 725 - 732

Assesment of chloride binding isotherm Author(s): V. Baroghel-Bouny, T.Q. Nguyen, P. Dangla, P. Belin

Pages: 733 - 743

Modelling of chloride migration through cementitious materials by using electrical current transfer Author(s): O. Amiri, A. Aït-Mokhtar, H. Fridedmann

Pages: 745 - 752

Chloride ingress: modelling, sampling and predicting service life Author(s): P. Goltermann

Pages: 753 - 760

Simulation of corrosion of reinforcement in reinforced concrete Author(s): P. Kotes, M. Brodnan, K. Slopková

Pages: 761 - 766

Moisture loss induced shrinkage of concrete Author(s): R. Mu, J.P. Forth

Pages: 767 - 773

Modelling of elastic properties of a hydrating cement paste Author(s): R. Chamrova, A. Guidoum, K. Scrivener

Pages: 775 - 782

Modelling elasticity of a hydrating cement paste Author(s): J. Sanahuja, L. Dormieux, G. Chanvillard

Pages: 783 - 790

Microstructure simulation of portland cement blended with blast furnace slag Author(s): G. Ye, K. van Breugel

Pages: 791 - 800

Modeling of early age behavior of underground structure Author(s): Z. Qi, L. Xian, Y. Yong

Pages: 801 - 807

Multi-scale modelling of ionic diffusivity, compression and tensile tests on mortar Author(s): S. Kamali-Bernard, F. Bernard, W. Prince

Pages: 809 - 817

Integrated materials-structural models Author(s): H. Stang, M. Geiker

Pages: 819 - 819