Study of the Hydration Mechanism of Portland Cement with Raman Spectroscopy Applying CO₂ Laser Radiation

Figure 4

Evolution of the Raman signal of C-S-H, in the cement paste irradiated at different powers and w/c ratios. (a) 1.6 W. (b) 2.0 W. (c) 2.4 W.

(a)

(b)

(c)