Effect of Polypropylene Fiber on the Strength and Dry Cracking of Mortar with Coal Gangue Aggregate

Table 2

The size distribution of CGA.

Screen size (mm)	Accumulated retained percentage
	Experimental value	The requirement of II zone
4.75	3	10∼0
2.36	17	25∼0
1.18	45	50∼10
0.60	68	70∼41
0.30	90	92∼70
0.15	99	100∼90