Effect of NaNO₂ and C₆H₁₅NO₃ Synergistic Admixtures on Steel-Rebar Corrosion in Concrete Immersed in Aggressive Environments

Table 1

Inhibitor admixtures by mass in the steel reinforced concrete samples.

Serial/number	Inhibitor admixture by mass	Serial/number	Inhibitor admixture by mass
1	0 g admixture (blank or control in NaCl)	2	0 g admixture (blank or control in H2SO4)
3	0 g admixture (blank or control in NaCl_Dup)	4	0 g admixture (blank or control in H2SO4_Dup)
5	6 g NaNO2 + 2 g C6H15NO3 in NaCl	6	6 g NaNO2 + 2 g C6H15NO3 in H2SO4
7	6 g NaNO2 + 2 g C6H15NO3 in NaCl_Dup	8	6 g NaNO2 + 2 g C6H15NO3 in H2SO4_Dup
9	4 g NaNO2 + 4 g C6H15NO3 in NaCl	10	4 g NaNO2 + 4 g C6H15NO3 in H2SO4
11	4 g NaNO2 + 4 g C6H15NO3 in NaCl_Dup	12	4 g NaNO2 + 4 g C6H15NO3 in H2SO4_Dup
13	2 g NaNO2 + 6 g C6H15NO3 in NaCl	14	2 g NaNO2 + 6 g C6H15NO3 in H2SO4
15	2 g NaNO2 + 6 g C6H15NO3 in NaCl_Dup	16	2 g NaNO2 + 6 g C6H15NO3 in H2SO4_Dup
17	6 g NaNO2 in NaCl	18	6 g NaNO2 in H2SO4
19	6 g NaNO2 in NaCl_Dup	20	6 g NaNO2 in H2SO4_Dup
21	4 g NaNO2 in NaCl	22	4 g NaNO2 in H2SO4
23	4 g NaNO2 in NaCl_Dup	24	4 g NaNO2 in H2SO4_Dup
25	2 g NaNO2 in NaCl	26	2 g NaNO2 in H2SO4
27	2 g NaNO2 in NaCl_Dup	28	2 g NaNO2 in H2SO4_Dup
29	2 g C6H15NO3 in NaCl	30	2 g C6H15NO3 in H2SO4
31	2 g C6H15NO3 in NaCl_Dup	32	2 g C6H15NO3 in H2SO4_Dup
33	4 g C6H15NO3 in NaCl	34	4 g C6H15NO3 in H2SO4
35	4 g C6H15NO3 in NaCl_Dup	36	4 g C6H15NO3 in H2SO4_Dup
37	6 g C6H15NO3 in NaCl	38	6 g C6H15NO3 in H2SO4
39	6 g C6H15NO3 in NaCl_Dup	40	6 g C6H15NO3 in H2SO4_Dup