The Influences of Iron Ore Tailings as Fine Aggregate on the Strength of Ultra-High Performance Concrete

Table 2

Physical properties of three kinds of sands (%).

Name	Clay lump	Water absorption	Roughness	Crushing value	Robustness	MB
IOT	0	0.9	14.2	11	7.8	0.3
Silica sands	0	0.6	10.7	10	5.8	0
River sands	0.7	0.8	12.4	13	6.2	0.8