Question

sieve size (mm)	Mass	% retained	Cumulative	Cumulative	Total %
	retained%		% retained	passing %	passing
19.0	1596	20.4	20.4	79.6
9,5	2524.2	32.2	52.6	47.4
4.75	1082.6	13.8	66.4	66.4
pan 2637.5	7840.3
2	130.5	37.4	37.4	62.6	21
1.18	65.4	18.7	56.1	43.9	14.7
600	52,2	15	71.1	28.9	9.7
300	30.1	8.6	79.7	20.3	6.8
150	26.2	7.5	87.2	12.8	4.3
63	22.7	6.5	93.8	6.2	2.10
Pan	21.8	6.2	100	0
total	348.9

Calculate Uniformity coeffiecient = D60/D10 and coeffiecient of curvature = (D30)^2/(D60 x D10)

Answer 1