List of Figures

• Two-dimensional processed SEM/X-ray image for cement 133 issued by the CCRL (NIST) in June of 1999. Color assignments are: red- C₃S, aqua- C₂S, green- C₃A, yellow- C₄AF, pale green- gypsum, white- free lime (CaO), dark blue (purple)- K₂SO₄, light magenta- periclase (magnesium containing phase). Image is 256 µm x 200 µm.
• Description of the quantitative analysis for cement 133 issued by the CCRL (NIST) in June of 1999.
• Two-dimensional slices from 3-D microstructures for cement 133 with w/c ratios of 0.30 (left) and 0.45 (right). At this point, only particles greater than 2 pixels (µm) in diameter have been placed in these microstructures. Color assignments are black- porosity, red- cement, and grey- gypsum. Gypsum volume fraction is approximately 5.5 %. Images are 100 pixels x 100 pixels.
• Flowchart specifying filtering algorithm for assigning pixel phase values to the three-dimensional starting cement microstructure image. Numbers in parentheses indicate phase IDs corresponding to the individual cement compounds.
• Two-dimensional slices from 3-D microstructures for cement 133 segmented into silicates and aluminates (left) and further segmented into C₃S, C₂S, and aluminates, with w/c=0.30. Color assignments are black- porosity, red- silicates (C₃S), aqua- C₂S, green- aluminates, and grey- gypsum. Images are 100 pixels x 100 pixels.
• Two-dimensional slices from 3-D microstructures for cement 133 after "sintering" to correctly adjust surface area fractions (hydraulic radius) following segmentation into silicates and aluminates (left) and following further segmentation into C₃S, C₂S, and aluminates, with w/c=0.30. Color assignments are black- porosity, red- silicates (C₃S), aqua- C₂S, green- aluminates, and grey- gypsum. Images are 100 pixels x 100 pixels.
• Two-dimensional slices from the final (before addition of any one-pixel particles) 3-D microstructures for cement 133 for w/c=0.30 (left image) and w/c=0.45 (right image). Color assignments are black- porosity, red- C₃S, aqua- C₂S, green- C₃A, yellow- C₄AF, and grey- gypsum. Images are 100 pixels x 100 pixels.
• Two-dimensional slices from the final 3-D microstructures for cement 133 for w/c=0.30 (left image) and w/c=0.45 (right image) after the addition of the one-pixel particles by the disrealnew program. Color assignments are black- porosity, red- C₃S, aqua- C₂S, green- C₃A, yellow- C₄AF, and grey- gypsum. Images are 100 pixels x 100 pixels.
• Three-dimensional central image from the final 3-D microstructure for cement 133 for w/c=0.30. Color assignments are black- porosity, red- C₃S, aqua- C₂S, green- C₃A, yellow- C₄AF, and grey- gypsum. Image is 50 pixels x 50 pixels x 50 pixels.
• Three-dimensional central image from the final 3-D microstructure for cement 133 for w/c=0.45. Color assignments are black- porosity, red- C₃S, aqua- C₂S, green- C₃A, yellow- C₄AF, and grey- gypsum. Image is 50 pixels x 50 pixels x 50 pixels.
• Experimental (solid lines) and model predicted (dashed lines) hydration rates as a function of hydration temperature for a C₃S paste with w/c=0.4.
• Experimentally measured (data points) and model predictions (lines) for C₃S consumption vs. time for different hemihydrate addition rates.
• Experimentally measured (data points) and model predictions (lines) for C₃A consumption vs. time for different hemihydrate addition rates.
• Experimentally measured (data points) and model predictions (lines) for ettringite formation vs. time for different hemihydrate addition rates.
• Experimental (data points) and model predicted (lines) degrees of hydration for cement 133, w/c=0.3 and 0.45, hydrated under both saturated (solid line) and sealed (dashed line) conditions.
• Experimental (solid lines) and model-predicted (dotted lines) cumulative heat release curves for hydration of cement 133 under sealed conditions, with w/c=0.3 (left) and 0.45 (right).
• Experimentally measured (circles) and predicted (line) compressive strength development for mortar cubes prepared with cement 133 (w/c=0.485). Crosses indicate +/- one standard deviation from the mean, as determined in the CCRL testing program [9].