Question

Example: Determine the Fineness Modulus for the given Sieve analysis performed on

Fine aggregate.

IS sieve

size

10

mm

4.75

mm

2.36

mm

1.18

mm

600 μ 300 μ 150 μ

Weight

retained gm 0 25 45 50 95 175 80​

Answer 1

The aggregate should be oven-dried at high temperature before sieving to prevent lump formation of the fine particles due to moisture content, which might clog the fine sieve holes.