MOISTURE TRANSPORT AND DRYING SHRINKAGE CRACKING IN CEMENT-BASED MATERIALS AT EARLY AGE
作者： Dragana Jankovic
DOI:
关键词:
摘要: Summary. The moisture flow and drying of porous media, such as concrete, is tackled through the Navier-Stokes equation, where equation considered link between theory fluid flow, Acoustic Emission (AE) experiments on cracking (sound propagation based wave equation) Lattice Gas Automata, (LGA) being a numerical simulation equation. Early age in ITZ induced by using only “load” that causes due to shrinkage volume changes Environmental Scanning Electron Microscopy (ESEM) tests. An attempt made compare experimental results conducted means AE ESEM 2-D LGA simulation. Automata (FHP model) used basis generate new model for medium. Special emphasis creation given Interface Transition Zone (ITZ), aggregate cement paste, because early crack initiation this highly strength-weak zone.
researchgate.net 参考文章(27)
D. Jankovic, J.G.M. Van Mier, Drying of Porous Media: Numerical and Experimental Approach EURO-C 2003 Computational Modeling of Concrete Structures, St.Johann im Pongau (Austria) March, 2003. ,(2003)
Michel Küntz, Jan van Mier, Paul Lavallée, A lattice gas automaton simulation of the nonlinear diffusion equation: A model for moisture flow in unsaturated porous media Transport in Porous Media. ,vol. 43, pp. 289- 307 ,(2001) , 10.1023/A:1010787823589
Chengsheng Ouyang, Stuart E. Swartz, Surendra P. Shah, Fracture Mechanics of Concrete: Applications of Fracture Mechanics to Concrete, Rock and Other Quasi-Brittle Materials ,(1995)
Brosl Hasslacher, Uriel Frisch, Yves Pomeau, Pierre Lallemand, Dominique d'Humières, Jean-Pierre Rivet, Lattice gas hydrodynamics in two and three dimensions Complex Systems. ,vol. 1, pp. 649- 707 ,(1987)
D. Jankovic, Moisture flow and microstructure development of the interface zone Report Mechanics and Construction Section CM 2000-010. ,(2000)
Jean-Pierre Boon, Alain Noullez, Automates de gaz sur réseaux. Aspects théoriques et simulations Université libre de Bruxelles. ,(1990)
J Bisschop, J.G.M van Mier, How to study drying shrinkage microcracking in cement-based materials using optical and scanning electron microscopy? Cement and Concrete Research. ,vol. 32, pp. 279- 287 ,(2002) , 10.1016/S0008-8846(01)00671-8
H. Sadouki, J. G. M. van Mier, Meso-level analysis of moisture flow in cement composites using a lattice-type approach Materials and Structures. ,vol. 30, pp. 579- 587 ,(1997) , 10.1007/BF02486899
M. Ohtsu, The history and development of acoustic emission in concrete engineering Magazine of Concrete Research. ,vol. 48, pp. 321- 330 ,(1996) , 10.1680/MACR.1996.48.177.321
U. Frisch, B. Hasslacher, Y. Pomeau, Lattice-Gas Automata for the Navier-Stokes Equation Physical Review Letters. ,vol. 56, pp. 1505- 1508 ,(1986) , 10.1103/PHYSREVLETT.56.1505