I.S sieve size	weight of soilg	I.S sieve size	weight of soilg
4.75 mm	10	425 $\mu$	85
2.00 mm	165	212 $\mu$	40
1.00 mm	100	1.50 $\mu$	30
		75 $\mu$	50

Plot the grain size distribution curve and determine the following:-

1. Percentage of gravel, coarse and medium sand, fine sand and slit clay fraction in the soil as per IS: 1498 - 1970.
2. Effective size
3. Uniformly coefficient
4. Coefficient of curve
5. The gradation of soil.

The diameter of soil grain and the corresponding percent fines than are calculated as below:-

I.S sieve size	Diameter of grain mm	Weight retained(g)	Cumulative weight retained (g)	% retained	% finer than
4.75	4.75	10	10	2.0	98.0
2.00	2.00	165	175	35.0	65.0
1.00	1.00	100	275	55.0 …