Correlation of Surface Cracks of Concrete due to Corrosion and Bond Strength (between Steel Bar and Concrete)

Table 4

Parameters by regression analysis for the exponential predictive model.

	Cover 25 mm				Cover 40 mm
	No stirrups	Φ8/240	Φ8/120	Φ8/60	No stirrups	Φ8/240	Φ8/120	Φ8/60
Α	1.435	0.736	0.274	0.117	1.257	0.724	0.499	0.260
R^2 (%)	96.2	96.5	97.7	45.9	97.5	96.0	91.9	80.1