These parameters are the isotropic chemical shift (δ ± 0.5 ppm), the full width at half maximum (FWMH ± 0.5 ppm) and the relative intensity (I ± 2 %). The mean chain length (MCL ± 1) and the Si/Al molar ratio (± 0.2) of the C-A-S-H gels have also been calculated and the values are given here.