A Prediction Model for Concrete Cracks due to Chloride-Induced Corrosion

Table 2

Crack spacing data comparison and error.

Group	D (mm)	c (mm)	(N/mm^2)	(N/mm^2)	(N)	(mm)	()	()	(%)
a	18	81	30.1	2.54	5.8	21.05	134	124	8.09
b	16	30	30	2.2	5.8	11.38	81.54	88	7.34
d	6.5	20	30	1.5	5.8	5.17	91.23	90	1.37
e	16	30	30	1.5	5.8	7.76	55.6	56	0.71
f	12	20	30	1.5	5.8	5.17	49.42	53	6.75
g	16	35	30	1.5	5.8	9.05	64.86	71	8.65
h	12	27	35	2.72	6.42	11.44	109.29	104	5.09
i	10	30	46.3	1.7	7.74	6.59	75.5	80	5.63

—calculated angle in degrees; —measured angle in degrees; —error between the measured and calculated angles; r = .