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Atterberg Limits

Format · IS 2720 (Part 5) · liquid limit, plastic limit, plasticity index

Type values into the sheet, or leave it empty to print a blank format. W4, W5 and moisture content are worked out as you type; liquid limit points are plotted on the flow curve and LL is read at 25 blows. Typed values are saved for this project.

ATTERBERG LIMITS
[As per IS 2720 (Part - 5)]
Laboratory no:
Sampling on:
Specification Limits
Type of material:
Sampled by:
Embankment LL: ≤50%, PI: ≤25%
Source:
Tested on:
Subgrade LL: ≤50%, PI: ≤25%
Location:
Tested by:
GSB/WMM LL: ≤ 25%, PI: ≤ 6%
Liquid Limit Plastic Limit
Determination No. 1234 12
Avg :
Results: LL : PL: PI :
Calculation for PI shall made as follows:
1. The Plasticity index is calculated as the difference between its Liquid limit & Plastic limit
2. In case of sandy soil PL should be determined first, When PL can not be determined, The PI should be reported as Non-Plastic (NP)
3. When the plastic limit is equal to or greater than the liquid limit, The PI shall be reported as zero
Remarks :
Name:
Date:
Contractor's Representative
Name:
Date:
Concessionaire's/PMC Representative
Name:
Date:
IE's Representative