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

Table 3

Parameters by regression analysis for the allometric 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	0.233	0.475	0.743	0.870	0.282	0.435	0.576	0.773
β	−0.845	−0.448	−0.239	−0.156	−0.640	−0.633	−0.461	−0.181
R^2 (%)	97.3	98.7	99.4	79.3	93.0	94.0	87.1	62.1