Prediction of physical properties of concrete using mathematical model for cement hydration and microstructure formation

Title: Prediction of physical properties of concrete using mathematical model for cement hydration and microstructure formation
Author(s): H. Sugiyama
Paper category : conference
Book title: International RILEM Symposium on Concrete Modelling - ConMod '08
Editor(s): E. Schlangen and G. De Schutter
Print-ISBN: 978-2-35158-060-8
e-ISBN: 978-2-35158-076-9
Publisher: RILEM Publications SARL
Publication year: 2008
Pages: 353 - 360
Total Pages: 8
Nb references: 7
Language: English

Abstract: A mathematical model for cement hydration and microstructure formation has been proposed in our previous study. The model deals with the diffusion of water into cement particles and the diffusion of cement components out of cement particles. The model makes it possible to express not only the progress of cement hydration but the progress of formation of the hydrated cement microstructure.
Using the model, the temperature rise of large-size concrete member caused by heat of cement hydration is predicted. Moreover, the strength development of concrete in large-size concrete member is quantitatively predicted. The total pore volume in hydrated cement paste is calculated by simulating the process of cement hydration and microstructure formation. The strength development of concrete is predicted on the basis of total pore volume. The model enables to predict the well-known characteristics that high-temperature curing at early ages improves early strength development, but inhibits the later strength development of concrete.

Online publication: 2009-06-15
Publication type : full_text
Public price (Euros): 0.00