Question

sand mass conatin 40% gravel ,50% sand and 10% silt .
Find the coefficient of uniformity?​

Answer 1

Answer:

Sand retained 0.075 mm 50% 90% 10%

silt retained 0.002 mm 10% 100% 0%

∴ D60 = 4.75 mm

D10= 0.075 mm

∴c4=D60D10=4.750.075=63.33>60