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Proceedings pro076 : International RILEM Conference on Material Science - HetMat - Modelling of Heterogeneous Materials - Theme 2


Title: International RILEM Conference on Material Science - HetMat - Modelling of Heterogeneous Materials - Theme 2
Edited by W. Brameshuber
ISBN: 978-2-35158-108-7
e-ISBN: 978-2-35158-109-4
Pages: 255
Publication date: 2010

The International Conference on Material Science (MatSci) offers three separate lines which illuminate the world of mineral building materials in its diversity: 2nd International Conference of Textile Reinforced Concrete (ICTRC), Modelling of Heterogeneous Materials (HetMat) and Additions Improving the Properties of Concrete (AdIPoC).

The present volume of the Conference Report deals with the modelling of heterogeneous materials. Research in the field of building materials is still characterised by a high experimental contribution. From such experiments, material laws and properties can be derived more or less generally and later they become part of the strength and durability examinations. On an international level, mostly mechanical scientists and building material scientists deal with the issues of the materials. The development during recent years shows that, due to the different methods of approach in both disciplines, solutions are developed which are partly very contradictory.

Therefore, it is a concern of the conference to bring together mechanical and building material scientists to commonly develop solution strategies, but also to discuss existing models. Especially composite materials such as concrete and masonry are complex materials. Due to their nonexistent ductility (crack formation) - but also because of their heterogeneity and, in the case of masonry, the additional anisotropy - they are a big challenge for the modelling and the required homogenisation methods to change from the microscopic to the macroscopic level. They will certainly keep science busy in the future. One scientist alone cannot solve these complex tasks, mechanical scientists and building material people need each other here. In this place, sincere thanks are given to all those who contribute to the success of the conference


Contents


Preface
Pages: XV - XVI

1. Invited lectures


Characterization of Concrete by a Multiscale Approach
Author(s): P. Wriggers, S. Löhnert
Pages: 3 - 12

Concrete: A Material that Barely Deserves that Qualification
Author(s): K. van Breugel
Pages: 13 - 32

Challenges in Modeling Cementitious Materials
Author(s): K. Scrivener
Pages: 33 - 42

Water Content of Concrete in Natural Atmospheres and its Impact in the Corrosion Parameters
Author(s): C. Andrade, A. Castillo
Pages: 43 - 51

2. Heterogeneous concrete and cracking


Adaptive Multiscale Methods for Damage Prediction in Heterogeneous Brittle Materials
Author(s): C. Könke, S. Eckardt, J. F. Unger
Pages: 55 - 71

High Quality Representation of 2D Crack Bridge Slate for Finite Element Simulation of Cementitious Composites
Author(s): J. Jerábek, R. Chudoba, J. Hegger
Pages: 73 - 81

Meso-Mechanical Modeling of Ultra-Lightweight Concretes
Author(s): T. Vallée, M. Oppel, T. Tannert
Pages: 83 - 90

3. Interfacial bond


Probabilistic Strength Prediction of Adhesively Bonded Joints Composed of Heterogeneous Materials
Author(s): T. Tannert, T. Vallée, S. Hehl
Pages: 93 - 100

Micromechanical Modeling of the Elastic Modulus of the ITZ of Concrete
Author(s): A.H. Barbosa, A.M.P. Carneiro
Pages: 101 - 111

A Variational Approach to Homogenization of Composites with Debonding Interfaces
Author(s): P. Gruber, J. Zeman
Pages: 113 - 121

4. Masonry mechanics


Modelling of Masonry under Horizontal Loads
Author(s): U. Schmidt, W. Brameshuber
Pages: 125 - 134

Fracture of Hollow Clay Units Simulated by Sequentially Linear Analysis
Author(s): J. Hannawald
Pages: 135 - 144

Numerical Modelling of Compressive Behaviour of Brick Masonry Reinforced by the bed Joints Reinforcement Technique
Author(s): E. Garbin, G. Guidi, M.R. Valluzzi, C. Modena
Pages: 145 - 154

5. Masonry mechanics / Transport


Two-Scale Modeling of Couplet Heat and Moisture Transport in Masonry Structures
Author(s): J. Sýkora, M. Sejnoha, J. Sejnoha
Pages: 157 - 164

3D Multi-Scale Model of Moisture Transport in Cement-Based Materials
Author(s): M. Koster
Pages: 165 - 176

6. Chemical shrinkage


Relating Ultrasonic Velocity Measurements on Fresh Concrete to CEMHYD3D Microstructure Simulations
Author(s): N. Robeyst, N. De Belie
Pages: 179 - 188

Modeling of Solid Fraction Evolution During Calcium Aluminate Cement Hydration
Author(s): N. Ukrainczyk, T. Matusinovic
Pages: 189 - 198

Shrinkage Eigenstress and Hardening of Concrete
Author(s): P. Paulini
Pages: 199 - 207

7. Fresh concrete / Porosity / Chemical attack


Simulating Fresh Concrete Behaviour - Establishing a link between the Bingham Model and Parameters of a DEM-Based Numerical Model
Author(s): S. Shyshko, V. Mechtcherine
Pages: 211 - 219

Evaluation of Capillary Pore Structures in Cement Pastes Using Spatial Point Process Statistics
Author(s): S. Igarashi, Y. Koike
Pages: 221 - 228

Sulphate Attack on Concrete-Mechanisms and Prediction Model
Author(s): M. Fenchel, H.S. Müller
Pages: 229 - 238