Effects of Mineral Admixtures on Macrocell Corrosion Behaviors of Steel Bars in Chloride-Contaminated Concrete
Table 1
Case design for the effect of various mineral admixtures.
Case no.
Cathode in A-side
Anode in B-side
Cathode no.
Initial surface state of steel bars
w/c ratio
Cl- content, wt.% of binder
Type and levels of mineral admixture
Anode no.
Initial surface state of steel bars
w/c ratio
Cl- content, wt.% of binder
Type and levels of mineral admixture
Case 1
P60-0-5
Polished
0.60
0
/
P60-3-3
Polished
0.60
3
/
Case 2
P60-0-6
Polished
0.60
0
/
R60-3-0
Rusted by seawater
0.60
3
/
Case 3
P60-0-7
Polished
0.60
0
/
P60-3-L30%S
Polished
0.60
3
L30%S
Case 4
P60-0-8
Polished
0.60
0
/
P60-3-L15%S
Polished
0.60
3
L15%S
Case 5
P60-0-9
Polished
0.60
0
/
P60-3-L25%C
Polished
0.60
3
L25%C
Case 6
P60-0-10
Polished
0.60
0
/
P60-3-L50%C
Polished
0.60
3
L50%C
Case 7
P60-0-11
Polished
0.60
0
/
P60-3-L70%C
Polished
0.60
3
L70%C
Case 8
P60-0-12
Polished
0.60
0
/
R60-3-L70%C
Rusted by seawater
0.60
3
L70%C
Case 9
P60-0-13
Polished
0.60
0
/
P60-3-FA30%S
Polished
0.60
3
FA30%S
Case 10
P60-0-14
Polished
0.60
0
/
P60-3-FA15%S
Polished
0.60
3
FA15%S
Case 11
P60-0-15
Polished
0.60
0
/
P60-3-FA25%C
Polished
0.60
3
FA25%C
Case 12
P60-0-16
Polished
0.60
0
/
P60-3-FA50%C
Polished
0.60
3
FA50%C
Case 13
P60-0-17
Polished
0.60
0
/
P60-3-FA70%C
Polished
0.60
3
FA70%C
Case 14
P60-0-18
Polished
0.60
0
/
R60-3-FA70%C
Rusted by seawater
0.60
3
FA70%C
Case 15
P60-0-19
Polished
0.60
0
/
P60-3-GGB30%S
Polished
0.60
3
GGB30%S
Case 16
P60-0-20
Polished
0.60
0
/
P60-3-GGB15%S
Polished
0.60
3
GGB15%S
Case 17
P60-0-21
Polished
0.60
0
/
P60-3-GGB25%C
Polished
0.60
3
GGB25%C
Case 18
P60-0-22
Polished
0.60
0
/
P60-3-GGB50%C
Polished
0.60
3
GGB50%C
Case 19
P60-0-23
Polished
0.60
0
/
P60-3-GGB70%C
Polished
0.60
3
GGB70%C
Case 20
P60-0-24
Polished
0.60
0
/
R60-3-GGB70%C
Rusted by seawater
0.60
3
GGB70%C
Note: in this table, the steel bars with polished surface were marked as P, while the steel bars with the seawater prerusted surface were marked as R. Limestone powder was marked as L, fly ash was marked as FA, slag was marked as GGB, sand was marked as S, and cement was marked as C.
