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

Table 2

XPS scanning data of Fe element in the simulate chloride salt solution.

Ingredient	Energy level of Fe 2p	Binding energy of peak position	Half width	Peak area	Relative content
FeO	Fe 2p3/2	709.4 ev	2.71	2037.3	32.3%
	Fe 2p1/2	723 ev	2.71	1024.3
	Fe 2p3/2	715.4 ev	3.9	893.8
	Fe 2p1/2	729 ev	3.9	449.2
FeOOH	Fe 2p3/2	711.9 ev	2.4	6215	67.7%
	Fe 2p1/2	725.5 ev	2.4	3125
	Fe 2p3/2	719.9 ev	3.14	196.9
	Fe 2p1/2	733.5 ev	3.14	99