Answer: Sieves are used in particle size distribution for aggregates. In sieve analysis percentage of cumulative retained materials is calculated and from those values particle size distribution curve is drawn. This curve gives an idea about size distribution of aggregates.
| Sieve No. | Openings (mm) |
| 3" | 75 |
| 1.5" | 37.5 |
| 0.75" | 18.75 |
| 0.375" | 9.38 |
| #4 | 4.75 |
| #8 | 2.36 |
| #16 | 1.18 |
| #30 | 0.60 |
| #50 | 0.30 |
| #100 | 0.150 |
| #200 | 0.075 |
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