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Simulation of Failure in Hydrating Cement Particles Systems

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Abstract:

The aim of this paper is to present the failure process of cement paste at different ages subjected to tensile loading. The input structure (cement paste) is generated by means of the cement hydration model HYMOSTRUC3D. A 2D-slice of this generated microstructure is subsequently transferred to the Delft Lattice Model, in which the failure process is analysed. Failure of cement paste microstructures at different degree of hydration, various water-cement ratios and different particle size distributions are analysed and discussed in the paper.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

737-740

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.737

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Online since:

September 2007

Authors:

Li Kun Tan, Erik Schlangen, Guang Ye

Keywords:

Cement, Crack, Hydration, Tensile Strength

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] J.G.M. van Mier: Fracture processes of concrete, Florida, CRC Press, (1997).

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[2] E. Schlangen: Experimental and numerical analysis of fracture processes in concrete, PhD thesis, Delft, Delft University of Technology (1993).

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[3] K. Van Breugel: Simulation of hydration and formation of structure in hardening cement-based materials, Revised PhD Thesis, Delft, Delft University Press (1997).

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[4] G. Ye: Experimental study and numerical simulation the microstructure and permeability of cementitious materials, PhD Thesis, Delft, Delft University Press (2003).

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[5] V. Smilauer, Z. Bittnar: Microstructure-based micromechanical prediction of elastic properties in hydrating cement paste, Cement and Concrete Research, vol. 36 no. 9 (2006), pp.1708-1717.

DOI: 10.1016/j.cemconres.2006.05.014

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[6] L.K. Tan: MSc-thesis, Delft University of Technology, (2007), in preparation.

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