Influence of Corrosion and Fatigue on the Bending Performances of Damaged Concrete Beams

Table 1

The test results of six beams.

Beam no.	First stage			Second stage		Notes
	Environment	Load	Environment	Fatigue load	Loading process
C-1	Tested up to failure	—	—	—
1	Air environment	0 kN	—	—	Apply static load until destroyed	A few holes and no cracks
2	Drying-wetting environment	0 kN	Air environment	2.1 kN–21 kN	Apply fatigue load until destroyed	A few holes and no cracks
3	Drying-wetting environment	9 kN	Air environment	2.1 kN–21 kN	Apply fatigue load until destroyed	Mixed with NaCl, a few holes, and crack width
4	Drying-wetting environment	9 kN	Corrosion environment	2.1 kN–21 kN	Corrosion 45 d ⟶ fatigue 4 w times ⟶ corrosion 45 d ⟶ apply fatigue load until destroyed	Mixed with NaCl, a few holes, and crack width
5	Drying-wetting environment	9 kN	Corrosion environment	2.1 kN–21 kN	Corrosion 45 d ⟶ fatigue 4 w times ⟶ corrosion 45 d ⟶ apply fatigue load until destroyed	Crack width
6	Drying-wetting environment	9 kN	Corrosion environment	2.1 kN–21 kN	Corrosion 45 d ⟶ fatigue 6 w times ⟶ corrosion 45 d ⟶ apply fatigue load until destroyed	A few holes and crack width