Table 3.

Characteristics of the elements analyzed.

Dimension	Specified value (m)	Mean value (m)	Standard deviation (m)
Width (b)	0.3	0.304	0.0041
Width (b)	0.4	0.396	0.0064
Width (b)	0.45	0.446	0.0064
Depth (h)	0.6	0.596	0.0064
Depth (h)	0.75	0.746	0.0064
Depth (h)	0.9	0.896	0.0064
Depth (h)	1.3	1.298	0.0064
Depth (h)	1.6	1.64	0.0062
Cover (r)	0.038	0.032	0.011