Tests on soil
Grain Size Analysis
Code: Test is performed as per IS: 2720(part- 4): 1985.
Test Procedure:
For soil samples of soil retained on 75 micron I.S sieve
- a) The proportion of soil sample retained on 75 micron I.S sieve is weighed and recorded weight of soil sample is as per I.S 2720.
- b) I.S sieves are selected and arranged in the order as shown in the table.
- c) The soil sample is separated into various fractions by sieving through above sieves placed in the above mentioned order.
- d) The weight of soil retained on each sieve is recorded.
- e) The moisture content of soil if above 5% it is to be measured and recorded.
No particle of soil sample shall be pushed through the sieves.
|
I.S sieve number or size in mm |
Wt. Retained in each sieve (gm) |
Percentage on each sieve |
Cumulative %age retained on each sieve |
% finer |
Remarks |
| 4.75 | |||||
| 4.00 | |||||
| 3.36 | |||||
| 2.40 | |||||
| 1.46 | |||||
| 1.20 | |||||
| 0.60 | |||||
| 0.30 | |||||
| 0.15 | |||||
| 0.075 |
Uses:
To determine the Grain size of soil.