Figure 8From: Transformation of meta-stable calcium silicate hydrates to tobermorite: reaction kinetics and molecular structure from XRD and NMR spectroscopy27Al MAS NMR of amorphous Al 2 O 3 starting material ([6]Al ~ 9 ppm ; [4]Al ~ 62–70 ppm) and Al-CSH and tobermorite solids ([4]Al ~ 54–68 ppm) for the 10:1 batch reaction.Back to article page