Seismic Behavior of Corroded RC Bridges: Review and Research Gaps

Table 8

Corrosion-induced reduction factors of mechanical properties of steel reinforcing.

References	Sample (); test	Corrosion method and condition
[95]	Ribbed (8–32);	Open air (environment)	0–0.5	0.0	0.0
	Plain (8–32);
[96]	Ribbed (12);	Acc. 0.5–2.0	0–11	0.45	0.33
[97]	Bare;	Open air (environment); Arabian coast	0-1	0.0	0.0
[98]	Ribbed (8); tensile	Acc. 0.5	0–28	0.16	0.44
	Plain (8); tensile			0.28	0.68
[99]	RC-ribbed (10–25);	Open air (environment); carbonation	0–67	0.04	0.05
	RC-plain (8–14);
[100]	RC	Open air (environment); chloride	0–25	0.6	0.63
[101]	Ribbed (10); tensile	Acc. 13.0	0–25	0.21	NS
[102]	RC beam (6, 12);	Chlorides; saline environment	0–20	NS	NS		3.5
[103]	Rib-RC (8, 16, 32);	Acc. 0.5–2.0 ; 3.5% NaCl; tensile	0–25	0.12	0.15
	Plain-RC (8, 16);		0–25	0.49	0.65
[104]	6 mm	Acc. 2.0	0–75		1.98	NS	4.6
	12 mm		0–80		0.74	NS	NS
[105]	NS	Open air (Environment); chloride	0–>30	0.00	0.00
[60]	Ribbed (8, 16, 32) and RC; tensile	Acc. 0.5–2.0 ; 3.5% NaCl; yield force	0–25	1.14–1.28
		Acc. 0.5–2.0 ; 3.5% NaCl; ultimate force	0–25	1.22–1.39
		Acc. 0.5–2.0 ; 3.5% NaCl; yield strength	0–25	0.16–0.36
		Acc. 0.5–2.0 ; 3.5% NaCl; ultimate strength	0–25	0.26–0.48
	Plain (8,16) and RC; tensile	Acc. 0.5–2.0 ; 3.5% NaCl; yield force	0–25	1.60, 1.48
		Acc. 0.5–2.0 ; 3.5% NaCl; ultimate force	0–25	1.71, 1.26
		Acc. 0.5–2.0 ; 3.5% NaCl; yield strength	0–25	0.79, 0.58
		Acc. 0.5–2.0 ; 3.5% NaCl; ultimate strength	0–25	0.94, 0.44
[77]	RC cube; tensile	Acc. 0.01–0.05 ; cyclic wet-dry	0–3	1.2	1.1	NS	3
	RC cylinders;	Acc. (electric); 5% NaCl
[69]	S400, 10 mm	Salt spray corrosion	1.5–8.5	1.47	1.31	NS	6.97
[68]	RC ribbed (10, 13);	Accelerated uniform (electric); 3% NaCl	0–35	1.24	1.07	1.75	1.95
	RC ribbed (10, 13);	Acc. pitting (chloride induced); cyclic wet-dry	0–35	1.98	1.57	1.15	2.95
[106]	RC beam; bending	Open air (environment); 1–12 years	0–50	NS	1.97	NS	NS
	RC beam; bending	Accelerated (electric); 3% NaCl	0–50	NS	1.59	NS	NS
	Ribbed; tensile	Open air (environment); 1–12 years	0–50	NS	1.41	NS	NS
	Ribbed; tensile	Accelerated (electric); 3% NaCl	0–50	NS	1.34	NS	NS
[71]	BS B500B; 10 mm;	NS	9.5–19.6	1.21	1.38	NS	1.91
[72]	RC plain (6.5 mm);	Naturally carbonation-induced corroded	14–38	1.12	1.36	NS	NS
	RC ribbed (12);	Acc. 0.1 ; 5% NaCl	4–28	1.1	1.22	NS	NS

indicates factor associated with yield force.
indicates reduction factor associated with ultimate force.