Computers and Concrete

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Theoretical prediction on thickness distribution of cement paste among neighboring aggregates in concrete

  • Chen, Huisu (Jiangsu Key Laboratory of Construction Materials, Southeast University) ;
  • Sluys, Lambertus Johannes (Faculty of Civil Engineering and Geosciences, Delft University of Technology) ;
  • Stroeven, Piet (Faculty of Civil Engineering and Geosciences, Delft University of Technology) ;
  • Sun, Wei (Jiangsu Key Laboratory of Construction Materials, Southeast University)
  • Received : 2009.11.16
  • Accepted : 2010.08.10
  • Published : 2011.04.25
⟨ Previous Next ⟩

Abstract

By virtue of chord-length density function from the field of statistical physics, this paper introduced a quantitative approach to estimate the distribution of cement paste thickness between aggregates in concrete. Dynamics mixing method based on molecular dynamics was employed to generate one model structure, then image analysis algorithm was used to obtain the distribution of thickness of cement paste in model structure for the purpose of verification. By comparison of probability density curves and cumulative probability curves of the cement paste thickness among neighboring aggregates, it is found that the theoretical results are consistent with the simulation. Furthermore, for the model mortar and concrete mixtures with practical volume fraction of Fuller-type aggregate, this analytical formula was employed to predict the influence of aggregate volume fraction and aggregate fineness. And evolution of its mean values were also investigated with the variation of volume fraction of aggregate as well as the fineness of aggregates in model mortars and concretes.

Keywords

References

  1. Ayyar, A. and Chawla, N. (2006), "Microstructure-based modeling of crack growth in particle reinforced composites", Compos. Sci. Technol., 66(13), 1980-1994. https://doi.org/10.1016/j.compscitech.2006.01.007
  2. Bentz, D.P., Hwang, J.T.G., Hagwood, C., Garboczi, E.J., Snyder, K.A., Buenfeld, N. and Scrivener, K.L. (1995), "Interfacial zone percolation in concrete: effects of interfacial zone thickness and aggregate shape", Proceedings of Microstructure of Cement- Based System/Bonding and Interfaces in Cementitious Materials. Pittsburgh, November.
  3. Carpinteri, A., Cornetti, P. and Puzzi, S. (2004), "A stereological analysis of aggregate grading and size effect on concrete tensile strength", Int. J. Fracture, 128(1), 233-242. https://doi.org/10.1023/B:FRAC.0000040986.00333.86
  4. Chen, H.S. Stroeven, P. and Ye, G. (2005a), "Influence of aggregate surface spacing on the microstructure of interfacial transition zone in fresh and hardened model cement paste", Proceedings of the 3rd International Conference on Construction Materials: Performance, Innovations and Structural Implications (CD-ROM), Vancouver, August.
  5. Chen, H.S., Stroeven, P., Stroeven, M. and Sluys, L.J.(2005d), "Nearest surface spacing between neighboring aggregate particles in concrete: theoretical solution", Proceedings of the International Conference on Advances in Concrete Composites and Structures (ICACS-2005), Chennai, January.
  6. Chen, H.S., Stroeven, P., Ye, G. and Stroeven, M. (2006), "Influence of boundary conditions on pore percolation in model cement paste", Key Eng. Mater., 302-303, 486-492. https://doi.org/10.4028/www.scientific.net/KEM.302-303.486
  7. Chen, H.S., Sun, W. and Stroeven, P. (2003), "Regular dodecahedron model to calculate the average surface spacing between neighboring aggregate grains in concrete", J. Chin. Ceram. Soc., 31 (11), 1048-1052.
  8. Chen, H.S., Sun, W. and Stroeven, P. (2005b), "Calculation of the average surface spacing between neighbor aggregate grains in cementitious composites by stereological method", J. Harbin Inst. Tech., 37(11), 1511- 1514.
  9. Chen, H.S., Sun, W., Stroeven, P. and Sluys, L.J. (2005c), "Analytical solution of the nearest surface spacing between neighboring aggregate grains in cementitious composites", J. Chin. Ceram. Soc., 33(7), 859-863, 870.
  10. Chen, H.S., Sun, W., Stroeven, P. And Sluys, L.J. (2007), "Overestimation of the interface thickness around convex-shaped grain by sectional analysis", Acta Mater., 55(11), 3943-3949. https://doi.org/10.1016/j.actamat.2007.03.009
  11. Chen, H.S., Ye, G. and Stroeven, P. (2004), "Computer simulation of structure of hydrated cement paste enclosed by interfacial transition zone in concrete", Proceeding of International Conference on Durability of High Performance Concrete and Final Workshop of CONLIFE, Freiburg, September.
  12. Choi, S.H. and Shah, S.P. (1999), "Propagation of microcracks in concrete studies with subregion scanning computer vision (SSCV)", ACI Mater. J., 96(2), 255-260.
  13. Diamond, S., Mindess, S. and Lovell, J. (1982), "On the spacing between aggregate grains in concrete and the dimension of the aureole de transition", Proceedings of Liaisons Pastes de Ciment/Materiaux Associates, Toulouse.
  14. Freudenthal, A.M. (1950), The inelastic behavior of engineering materials and structures, John Wiley & Sons, New York.
  15. Fullman, R.L. (1953), "Measurement of particle sizes in opaque bodies", Transac. AIME, 190, 447-452.
  16. Hu, J., Chen, H.S. and Stroeven, P. (2006), "Spatial dispersion of aggregate in concrete: a computer simulation study", Comput. Concrete, 3(5), 301-312. https://doi.org/10.12989/cac.2006.3.5.301
  17. Koenders, E.A.B. (1997), Simulation of volume changes in hardening cement-based materials, Delft University Press, Delft.
  18. Parse, J.B. and Wert, J.A. (1993), "A geometrical description of particle distribution in materials", Model. Simul. Mater. Sci. Eng., 1(3), 275-296. https://doi.org/10.1088/0965-0393/1/3/003
  19. Raabe, D. and Dierk, R. (1998), Computational materials science: the simulation of materials micro-structures and properties, Wiley-VCH, Weiheim.
  20. Scrivener, K. and Netami, K.M. (1996), "The percolation of pore space in the cement paste/aggregate interfacial zone of concrete", Cement Concrete Res., 26(1), 35-40. https://doi.org/10.1016/0008-8846(95)00185-9
  21. Scrivener, K.L., Crumbie, A.K. and Laugesen, P. (2004), "The interfacial transition zone (ITZ) between cement paste and aggregate in concrete", Interface Sci., 12(4), 411-421. https://doi.org/10.1023/B:INTS.0000042339.92990.4c
  22. Stroeven, M. (1999), Discrete numerical modeling of composite materials, Delft University Press, Delft.
  23. Stroeven, P., Hu, J. and Stroeven, M. (2009), "On the usefulness of discrete element computer modeling of particle packing for material characterization in concrete technology", Comput. Concrete, 6(2), 133-153. https://doi.org/10.12989/cac.2009.6.2.133
  24. Torquato, S. (2004), Random heterogeneous materials : microstructure and macroscopic properties, Springer, New York.
  25. Torquato, S. and Lu, B.L. (1993), "Chord-length distribution function for two-phase random media", Phys. Rev. E, 47(5), 2950-2953. https://doi.org/10.1103/PhysRevE.47.2950
  26. Underwood, E.E. (1970), Quantitative stereology, Addison-Wesley, Menlo Park.
  27. van Breugel, K. (1991), Simulation of hydration and formation of structure in hardening cement-based materials, Delft University Press, Delft.
  28. van Mier, J.G.M. and Lilliu, G. (2004), "Effect of ITZ-percolation on tensile fracture properties of 3-phase particle composites", Proceedings of Modelling of Cohesive-Fractional Materials, A.A.Balkema Publishers, Leiden, 101-108.
  29. Walraven, J.C. (1980), Aggregate interlock: a theoretical and experimental analysis, Delft University of Technolgoy, Delft.
  30. Yang, N., Boselli, J. and Sinclair, I. (2001), "Simulation and quantitative assessment of homogeneous and inhomogeneous particle distributions in particulate metal matrix composites", J. Microscopy, 201(2), 189-200. https://doi.org/10.1046/j.1365-2818.2001.00766.x
  31. Zheng, J.J. (2000), Mesostructure of concrete: stereological analysis and some mechanical implications, Delft University Press, Delft.

Cited by

  1. Characterizing frost damages of concrete with flatbed scanner vol.102, 2016, https://doi.org/10.1016/j.conbuildmat.2015.11.029
  2. Evaluation of Mesostructure of Particulate Composites by Quantitative Stereology and Random Sequential Packing Model of Mono-/Polydisperse Convex Polyhedral Particles vol.52, pp.20, 2013, https://doi.org/10.1021/ie3025449
  3. Waterproof ultra-high toughness cementitious composites containing nano reservoir silts vol.155, 2017, https://doi.org/10.1016/j.conbuildmat.2017.08.119
  4. Quantitative characterization of the microstructure of fresh cement paste via random packing of polydispersed Platonic cement particles vol.20, pp.7, 2012, https://doi.org/10.1088/0965-0393/20/7/075003
  5. A Multi-Aggregate Approach For Modeling The Interfacial Transition Zone In Concrete vol.111, pp.2, 2014, https://doi.org/10.14359/51686501
  6. Aggregate shape effect on the overestimation of ITZ thickness: Quantitative analysis of Platonic particles vol.289, 2016, https://doi.org/10.1016/j.powtec.2015.11.036
  7. Numerical investigation of effect of particle shape and particle size distribution on fresh cement paste microstructure via random sequential packing of dodecahedral cement particles vol.114-115, 2013, https://doi.org/10.1016/j.compstruc.2012.10.009
  8. Microstructural characterization of fresh cement paste via random packing of ellipsoidal cement particles vol.66, 2012, https://doi.org/10.1016/j.matchar.2012.01.012
  9. Effects of technological parameters on permeability estimation of partially saturated cement paste by a DEM approach vol.84, 2017, https://doi.org/10.1016/j.cemconcomp.2017.09.013
  10. Numerical modeling on the influence of particle shape on ITZ’s microstructure and macro-properties of cementitious composites: a critical review vol.7, pp.4, 2018, https://doi.org/10.1080/21650373.2018.1473818
  11. Pore and Solid Characterizations of Interfacial Transition Zone of Mortar Using Microcomputed Tomography Images vol.33, pp.12, 2011, https://doi.org/10.1061/(asce)mt.1943-5533.0003986
  12. Permeability of concrete considering the synergetic effect of crack’s shape- and size-polydispersities on the percolation vol.315, pp.None, 2022, https://doi.org/10.1016/j.conbuildmat.2021.125684