Fig. 8: In-situ FTIR spectra and degradation rate of C-S-H under sulfuric acid attack.

a The effect of sulfuric acid with pH 6 on Si-O, b rate of degradation of Q2 polymerization of C-S-H.

a The effect of sulfuric acid with pH 6 on Si-O, b rate of degradation of Q2 polymerization of C-S-H.