The Concrete Performance with Iron Tailings Sand Modified by Polypropylene Fibers under Aggressive Environment

Table 2

Grain size distribution of NS and ITS.

Particle size range (mm)	0∼0.15	0.15∼0.3	0.3∼0.6	0.6∼1.18	1.18∼2.36	2.36∼4.75	Fineness modulus
NS (%)	8	13	23	23	29.5	3.5	2.64
ITS (%)	30	18	32	12	5	3	1.53