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10. Hydrated phases in blended cementitious systems for nuclear infrastructure



Title: 10. Hydrated phases in blended cementitious systems for nuclear infrastructure
Author(s): K.A. Snyder, P.E. Stutzman, J. Philip, D. Esh
Paper category : conference
Book title: NUCPERF 2009 - Long Term Performance of Cementitious Barriers and Reinforced Concrete in Nuclear Power Plants and Waste Management
Editor(s): V. L'Hostis, R. Gens, C. Gallé
Print-ISBN: 978-2-35158-072-1
e-ISBN: 978-2-35158-087-5
Publisher: RILEM Publications SARL
Publication year: 2009
Pages: 91 - 98
Total Pages: 8
Nb references: 7
Language: English


Abstract: The hydration products of varying proportions of portland cement, fly ash, ground granulated blast furnace slag, and silica fume in blended systems were identified and quantified. The proportion of portland cement varied from 100 % to 10 %. Each binder was characterized by its oxide content, and all the pastes were made at constant water:cementitious material mass ratio. The hydrated paste samples were analyzed using a combination of Rietveld analysis of X-ray diffraction data and thermogravimetric analysis.
The estimated type and quantity of phases present were compared to current thermodynamic models for blended cement hydration. Results are given after three months hydration, and the research program is part of a year-long study that will include X-ray microanalysis and pore solution analysis. The techniques and data from this experiment will be used to evaluate hydrated systems and to validate the hydrated phase prediction component of performance assessment computer models for nuclear applications.


Online publication: 2009-11-16
Publication type : full_text
Public price (Euros): 0.00