Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite

Table 6

Cracking pattern.

Age (days)	Number of cracks within gauge length (80 mm)	Crack spacing (mm)	Crack width (μm)
3	89.9 ± 11.3	0.90 ± 0.10	60.3 ± 8.2
5	82.1 ± 3.1	0.98 ± 0.04	68.5 ± 2.5
7	90.9 ± 7.0	0.89 ± 0.07	62.8 ± 8.3
14	103.5 ± 2.3	0.76 ± 0.02	51.4 ± 2.7
28	101.7 ± 7.9	0.79 ± 0.06	53.9 ± 4.0
90	99.8 ± 7.1	0.81 ± 0.06	50.5 ± 4.5