Figure 4From: Transformation of meta-stable calcium silicate hydrates to tobermorite: reaction kinetics and molecular structure from XRD and NMR spectroscopy27Al 3Q-MAS NMR of tobermorite (t = 24 h sample). These data show two structurally distinct [4]Al sites from Q2 bridging (Q2 [4]Albrid) and Q3 branching (3Q [4]Albran) chains within the tobermorite framework.Back to article page