Chloride migration measurement for chloride and sulfide contaminated concrete

Table 2 Variations of the mortar tests and observations

Reactants			Oxidation agent	NaI-Conc. in the mix. water [mol/l]	Observations
Sulfide (GGBS)	Iodide	Chloride	Oxidation agent	NaI-Conc. in the mix. water [mol/l]	Observations
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