Mechanical Properties of 30 Year-Old Naturally Corroded Steel Reinforcing Bars

Fernandez, Ignasi; Berrocal, Carlos G.

doi:10.1186/s40069-018-0308-x

International Journal of Concrete Structures and Materials

Table 6 Set number 3.

From: Mechanical Properties of 30 Year-Old Naturally Corroded Steel Reinforcing Bars

Bar #	Bar type	µ _avg,w (%)	A _avg (mm²)	A _ccs (mm²)	µ_avg,3D (%)	µ_ccs (%)	Pit length (mm)	Pit width (mm)	Pit depth (mm)	F_max (kN)	F_y (kN)	ε_max (–)	ε_u (–)	ε_y (–)
ST3-1	St	7.90	194.88	187.81	5.94	11.24	14.88	8.11	2.67	154.4	115.9	0.077	0.081	0.009
ST3-2	St	9.37	191.77	146.67	13.56	30.68	25.17	13.97	3.07	129.8	105.3	0.036	0.039	0.008
ST3-3	Sk	8.85	196.92	189.45	7.44	12.31	9.54	4.67	2.84	154.0	115.6	0.084	0.084	0.009
ST3-4	Sk	7.34	200.18	169.90	7.83	21.36	14.71	4.12	3.17	143.7	121.5	0.024	0.024	0.009
ST3-5	St	13.84	182.31	173.77	10.68	17.88	7.83	5.22	2.58	153.6	123.6	0.030	0.031	0.010
ST3-6	Sk	7.10	200.71	184.47	4.04	14.61	13.61	10	2.09	148.2	124.8	0.033	0.033	0.009
ST3-7	Sk	10.17	194.07	188.17	8.51	12.90	6.85	5.89	2.09	164.9	122.1	0.074	0.079	0.009
ST3-8	Sk	8.32	198.05	195.02	5.87	9.73	4.07	3.38	2.49	158.3	119.9	0.078	0.082	0.009
ST3-9	St	5.13	200.74	189.97	4.43	10.2	12.02	7.32	1.71	162.3	123.5	0.089	0.095	0.014
ST3-10	Sk	8.76	197.12	179.94	7.67	16.71	6.74	5.11	3.11	147.5	116.4	0.053	0.057	0.009
ST3-11	St	4.53	202.01	161.71	6.48	23.58	15.46	11.4	4.28	146.0	120.0	0.026	0.027	0.007
ST3-12	Sk	7.87	199.03	172.88	11.47	19.98	9.61	8.61	2.5	146.3	122.0	0.047	0.049	0.010
ST3-13	St	14.37	181.19	154.19	16.09	27.13	22.15	10.54	2.2	140.3	107.3	0.042	0.045	0.008
ST3-14	St	14.08	181.82	169.70	15.50	19.80	12.09	9.08	2.06	150.5	111.8	0.084	0.085	0.012
ST3-15	St	5.64	199.66	195.02	3.54	7.83	9.84	4.78	1.75	161.4	118.9	0.095	0.106	0.013
ST3-16	St	8.14	194.38	176.11	8.80	16.77	9.41	5.64	2.67	140.2	111.7	0.062	0.064	0.014
ST3-17	St	5.97	198.96	173.91	5.55	17.81	9.12	4.59	1.88	143.9	112.9	0.056	0.057	0.013
ST3-18	St	7.47	195.79	180.52	8.30	14.69	8.74	3.25	1.42	148.9	110.7	0.100	0.110	0.012
ST3-19	St	14.20	181.55	158.46	15.72	25.11	11.35	6.54	3.3	120.2	95.0	0.048	0.049	0.013
ST3-20	St	12.65	184.84	172.59	14.46	18.44	30.51	12.68	3.28	152.6	113.3	0.097	0.108	0.014
ST3-21	St	7.72	195.25	183.83	6.72	13.12	8.5	5.34	3.11	151.3	111.7	0.083	0.091	0.012
ST3-22	St	11.48	187.31	170.99	10.45	19.19	7.74	5.85	2.13	139.3	104.8	0.090	0.101	0.012
ST3-23	St	5.64	199.67	183.68	6.10	13.19	15.71	6.37	2.01	148.3	113.7	0.070	0.072	0.015
ST3-24	St	4.76	201.53	197.61	1.79	6.61	4.03	2.98	1.35	168.1	121.9	0.138	0.159	0.017
ST3-25	St	11.03	188.25	165.31	9.80	21.88	12.41	7.38	1.86	135.6	105.4	0.058	0.060	0.013
ST3-26	St	17.70	174.15	147.20	18.31	30.43	11.74	9.52	2.22	126.5	100.8	0.048	0.052	0.013
ST3-27	St	5.20	200.60	181.33	7.68	14.31	10.94	5.77	2.19	163.0	121.4	0.094	0.099	0.014
ST3-28	St	4.22	202.68	189.69	3.76	10.36	7.99	7.72	2.06	154.8	117.3	0.083	0.085	0.013
ST3-29	St	15.29	179.25	167.22	15.65	20.97	7.04	4.66	2.44	137.0	100.2	0.090	0.092	0.014
ST3-30	St	15.26	179.32	151.07	15.48	28.61	29.22	14.83	2.53	125.1	95.8	0.064	0.073	0.012
ST3-31	St	18.58	172.28	128.92	25.55	39.07	12.39	7.16	3.09	118.1	95.2	0.045	0.049	0.013
ST3-32	St	12.17	185.86	167.94	12.38	20.64	14.91	4.46	2.61	150.8	110.5	0.088	0.094	0.012

µ_avg average corrosion level, A_avg average corroded area, A_ccs critical cross-section, µ_ccs critical corrosion level.

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