Page 12 - ICJ Feb Openaccess 2026

TECHNICAL PAPER

0.8
12
Flexural strength ratio 0.7 0.66 0.44 0.66 0.5 0.46 0.68 0.5 0.46 0.65 0.62 0.6 0.69 0.63 0.68 0.66 10 y = 0.1707x 1.296 HSSCCFRA50
0.65
-
0.63
0.6
R² = 0.9754
0.48
HSSCC
0.5
8
0.4
HSSCCFRA100
0.3
0.2
0.1 Flexural strength ratio 6 SCCFRA50 SCC
0 4 SCCFRA100
SCC HSSCC
SCCFRA50 SCCFRA100 HSSCCFRA50 HSSCCFRA100 2
MIX ID 0 0 10 20 30 40 50 60 70
7days/28 days 7days/56 days 7days/90 days Compressive strength, MPa
Figure 13(b): Plot of Flexural Strength ratios Figure 13c: Compressive Strength vs Flexural Strength

[32]
resistivity towards the infiltration of chloride ions . From the From all the mixes, the least potential after 20 cycles was
two grades adopted in the study, as the water-to-cement ratio observed for HSSCC and the highest value for SCCFRA100.
of high strength mix is low, the permeability is lower and the This implies that RFA when adopted shows poor performance
potential values are low, compared to low strength mix with high and exhibits a higher probability of corrosion which is shown in
potential values (Figure 15). Figure 15.

2500 2000 1775.2
2105.3 1500 1381.8
1855.7
Charge passed (Coulombs) 1500 1260.6 Charge passed (Coulombs) 1000 1014.3
2000

1000

500

0 500
0
SCC SCCFRA50 SCCFRA100 HSSCC HSSCCFRA50 HSSCCFRA100
Figure 14: Results of RCPT for SCC and HSSCC mixes

800 700
700 600
600 500
Potential (-mV) 400 Potential (-mV) 400
500

300
300
200 200
100 100
0 0
0123456789 10 11 12 13 14 15 16 17 18 19 20 0123456789 10 11 12 13 14 15 16 17 18 19 20
No. of cycles No. of cycles
SCC SCCFRA50 SCCFRA100 HSSCC HSSCCFRA50 HSSCCFRA100
Figure 15: Variation of Potential through dry-wet cycles for SCC and HSSCC

THE INDIAN CONCRETE JOURNAL | FEBRUARY 2026 33