Flexural Behavior of Graphite Tailings RC Beams in Chloride Environment

Table 1

Physical properties of graphite tailings sand and natural sand.

Physical property	Grain size (mm)	Apparent density (kg·m^−3)	Bulk density (kg·m^−3)	Fineness modulus	Water absorption (%)	pH value
Natural sand	0.16∼5	2620	1540	2.49	21.87	8
Graphite tailings	0.01∼3	2855	1630	0.90	30.10	10