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

Figure 3

Evolution of the Raman signal of the main hydration products, for irradiation at 1.6, 2.0, and 2.4 W and without irradiation with a w/c ratio 0.45, (a) C-S-H. (b) AFt. (c) Ca(OH)₂.

(a)

(b)

(c)