Regression Analysis of Bond Parameters between Corroded Rebar and Concrete Based on Reported Test Data

Table 1

Parameters of pull-out specimens with plain rebar.

References No.	Specimen size (mm)	Corrosion level (%)	(MPa)	(mm)	(mm)	No. of specimens	(mm)	Stirrup confinement	Reinforcement position	Test environment	Reinforcement type
[3]	100×100×100	0.27–5.01	22.13	12	44	14	80	No	Center	Accelerated corrosion	Plain bars
[4]	100×100×100	0–5.01	22.13	12	44	14	80	No	Center	Accelerated corrosion	Plain bars
[5]	100×100×100	0–8	13.98, 21.1, 23.63	12	44	21	5d	No	Center	Accelerated corrosion	Plain bars
[6]	150×150×150	0–11.9	39.8, 62.7, 73.4	12	69	52	60	No	Center	Current density of 0.25mA/cm^2	Plain bars
[9]	140×140×180	0–6.8	52.1	20	60	16	4d	Each half	Center	Direct current (0–2 A)	Plain bars
[16]	140×140×180	0–6.77	54.15	20	60	16	4d	Each half	Center	Current density of 1.214mA/cm^2	Plain bars
[17]	150×150×140	0–5.95	21.1	12	69	6	100	No	Center	Accelerated corrosion	Plain bars
[18]	150×150×150	0–10.41	24.81	18, 20, 22	30	17	100	No	Side	Accelerated corrosion	Plain bars
[19]	150×150×150	0–5.38	30	10	70	18	110	No	Center	Current density of 0.3mA/cm^2	Plain bars
[20]	100×100×150	0–12.2	33.5	16	42	5	50	No	Center	Accelerated corrosion	Plain bars
[21]	150×150×150	2.76–5.95	21.1	12	69	5	100	No	Center	Accelerated corrosion	Plain bars