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A clayey soil has a maximum dry density fo 16 kN/m3 and optimum moisture content of 12%. A contractor during the construction of core of an earth dam obtained the dry density 15.2 kN/m3 and water content 11%. This construction is acceptable because.
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- the density is less than the maximum dry density and water content is on dry side of optimum.
- the compaction density is very low and water content is less than 12%.
- the compaction is done on the dry side of the optimum.
- both the dry density and water content of the compacted soil are within the desirable limits.
Correct Option: D
Relative compaction
| = | × 100 | γdlab |
| = | × 100 = 95% | 16 |
Acceptable limit is 90 to 95%
Hence option (d) is correct.
