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Pro058

Experimental results of cement particle growth in the early hydration stage



Title: Experimental results of cement particle growth in the early hydration stage
Author(s): A. Mueller, S. Erfurt
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: 401 - 409
Total Pages: 9
Nb references: 8
Language: English


Abstract: Since the modeling of the hydration mechanisms in cementitious systems was launched, the problem of evaluating these model-based results occurred. In conjunction with the grown number of computer models and their results, the need for real experimental data as a counterpart grew up, too. Concerning the early hydration stage of cements, there seems to be a lack of experimental data which are suitable for validation.
The paper introduces a special developed technique for in-situ-measurement of the changing particle size distribution of hydrating binders within the early stage. This laser granulometer based technique allows to measure kinetic hydration phenomena as real numerical data and can provide data for the direct comparison of simulated and experimental results.
Some experimental major results and tendencies of the particle growth of OPC will be stated. The impact of cement properties, admixtures and hydration influencing factors are described. The comparison of experimental and simulated data are exemplified.


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