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 % down to 10 %. The initial components were characterized by the oxide content, and all the pastes were made at constant water:cementitious material mass ratio. The hydrated paste samples were analyzed using Rietveld analysis of X-ray diffraction and using thermogravimetric analysis (TGA). 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 later include X-ray microanalysis and pore solution analysis. The final results from this experiment will be used to validate performance assessment computer models for nuclear applications.
Proceedings Title: NUCPERF 2009 Proceeding
Conference Dates: March 30-April 2, 2009
Conference Location: Cadarache, -1
Conference Title: NUCPERF 2009 Conference Proceedings
Pub Type: Conferences
cement, Rietveld analysis, thermogravimetric analysis, X-ray diffraction