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. 2020 Apr 29;8:304. doi: 10.3389/fchem.2020.00304

Figure 3.

Figure 3

ATR-FTIR spectra of the steel surface after corrosion treatment in simulated concrete pore solutions containing chloride ions. The tests were conducted without inhibitor (A) and with p-aminobenzoic acid (pAB) (C). The spectrum of the pAB powder (B) was reported as a reference.