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Table 2 Variations of the mortar tests and observations

From: Chloride migration measurement for chloride and sulfide contaminated concrete

Reactants Oxidation agent NaI-Conc. in the mix. water [mol/l] Observations
Sulfide
(GGBS)
Iodide Chloride
Yes No No KIO3 0.0 Blue-purple discoloration
Yes Yes No KIO3 0.21 Strong blue-purple discoloration
Yes Yes No KIO3 0.14 Strong blue-violette discoloration
Yes Yes No KIO3 0.07 Blue-purple discoloration
Yes Yes No KIO3 0.035 Blue-purple discoloration
Yes No No H2O2 0.0 Yellow discoloration
Yes Yes No H2O2 0.21 Strong blue discoloration
Yes Yes No H2O2 0.14 Strong blue discoloration
Yes Yes No H2O2 0.07 Strong blue discoloration
Yes Yes No H2O2 0.035 Strong blue discoloration
Yes No No K2S2O8 0.0 No discoloration
Yes Yes No K2S2O8 0.1 Blue discoloration