Chemical Composition of Corrosion Products of Rebar Caused by Carbonation and Chloride

Table 4

XPS scanning data of Fe in the combined effect of carbonation and chloride salt.

Ingredient	Energy level of Fe 2p	Binding energy of peak position	Half width	Peak area	Relative content
Fe3O4	Fe 2p3/2	710.8 ev	2.3	906.7	19.3%
	Fe 2p1/2	724.4 ev	2.3	305.1
FeOOH	Fe 2p3/2	711.5 ev	2.4	2230.6	69.1%
	Fe 2p1/2	725.1 ev	2.4	312.3
	Fe 2p3/2	719.5 ev	3.14	2323.1
	Fe 2p1/2	733.1 ev	3.14	343.1
FeCl3	Fe 2p3/2	713.9 ev	2.7	409.9	11.6%
	Fe 2p1/2	727.5 ev	2.7	102.4
	Fe 2p3/2	721.9 ev	3.2	468.4
	Fe 2p1/2	735.5 ev	3.2	130.3