8. Simulation and modelling

Title: 8. Simulation and modelling
Author(s): K. van Breugel, E.A.B. Koenders, S. P. Shah, Z. Sun, T. Voigt, G. Ye
Paper category : book
Book title: Advanced Testing of Cement-Based Materials during Setting and Hardening - Final Report of RILEM TC 185-ATC
Editor(s): H.W. Reinhardt and C.U. Grosse
Print-ISBN: 2-912143-81-0
e-ISBN: 2912143705
Publisher: RILEM Publications SARL
Publication year: 2005
Pages: 311 - 335
Total Pages: 25
Nb references: 23
Language: English

Abstract: A better understanding of the development of microstructure during cement hydration is very important in concrete material science, both in theoretical and experimental studies. In the past two decades, with the help of the quick development of computer technology, several computer-based cement hydration models have been developed for simulating the evolution of the microstructure of cement-based materials, as well as for predicting their mechanical properties and transport properties. These models can be grouped into continuum models [Jennings & Johnson (1986); van Breugel (1991); Koenders (1997); Ye (2003); Navi & Pignat (1996); Meakawa et al (1999)] and models based on a digital-image processing approach [Bentz & Garboczi (1989); Bentz (1997)]. Pioneering work in this field dates back to Jennings and Johnson (1986), who first proposed a computer-based cement hydration model. In their model, the cement particles were modelled as growing spheres. Another advanced model has been accomplished with the digital-image-based microstructure, which was developed by Bentz and Garboczi (1989). Their model allows the direct representation of multiphase and non-spherical cement particles. Among the numerical simulation models, the HYMOSTRUC3D [van Breugel (1991); Koenders (1997); Ye (2003)] has the advantage of considering the interaction between individual particles and the reaction kinetics explicitly. The microstructural features, such as connectivity and percolation of the phases can be deduced from the model. A comprehensive overview about numerical and computer modelling of cement-based materials is given by [Bentz (1997)] and [Ye (2003)]. In this chapter, the HYMOSTRUC3D model, which will be used in this report, is discussed in detail.

Online publication: 2006-09-22
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143705.013