Optimised continuum cement hydration modelling

Title: Optimised continuum cement hydration modelling
Author(s): Shashank Bishnoi, Karen Scrivener
Paper category : conference
Book title: 2nd International RILEM Symposium on Advances in Concrete through Science and Engineering
Editor(s): J. Marchand, B. Bissonnette, R. Gagné, M. Jolin and F. Paradis
Print-ISBN: 2-35158-003-6
e-ISBN: 2351580028
Publisher: RILEM Publications SARL
Publication year: 2006
Pages: 63 - 74
Total Pages: 12
Nb references: 9
Language: English

Abstract: The recent advances in computer technology have been well exploited by cement scientists with numerous models simulating cement properties being developed over the last twenty years. However, most of the models still rely on a trade-off between accuracy and computational costs. Over a number of years a model simulating cement hydration has been developed at EPFL using the continuum approach and integrated particle kinetics. The continuum approach not only preserves the multi-scale nature of the cement particles, but also of the product with the possibility of identifying and modelling pores without resolution limit. This approach, however, faces a tremendous computational challenge as representative cement samples contain millions of discrete particles, limiting the capabilities of these models. This study presents 'µic' a newly developed model using a computational approach that bring its performance to par with other approaches with the added advantage of making it an inherently multi-scale micro-structural model. The improved model makes more accurate and extensive modelling of cement possible, at the same time bringing cement simulations to the desktop-user domain. The potential for future development is ensured by the use of a cement hydration tool-kit.

Online publication: 2006-08-02
Classification: 2.1 Theme 1: Numerical Models: from Microstructure to Transport Properties and Durability
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2351580028.005