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Compaction Guidelines for Fine-Grained Soils in Road Design
10 Questions
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Compaction Guidelines for Fine-Grained Soils in Road Design

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Questions and Answers

Resilient Modulus is a measure of soil stiffness under cyclic loading and is not related to poison n

False

Compaction guidelines recommend compacting all fill areas below 300 mm to 95% standard proctor density.

False

Mechanical stabilization of soil includes methods like blending, chemical stabilization, and geosynthetics.

True

In the compaction guidelines, for fine-grained soils, the top 300 mm should be re-compacted to 95% of standard proctor density.

<p>True</p> Signup and view all the answers

For coarse-grained soils with plasticity index ≤ 6, the top 300 mm should be re-compacted to 100% of standard proctor density.

<p>True</p> Signup and view all the answers

Mechanical stabilization through blending involves mixing other soils with the target soil to change its chemical properties.

<p>False</p> Signup and view all the answers

Lime treatment of subgrade soils is generally recommended for hard, dry, sandy soils.

<p>False</p> Signup and view all the answers

The objective of lime treatment of subgrade soils is to decrease the thickness of the pavement structure.

<p>True</p> Signup and view all the answers

Mechanical stabilization techniques include compaction and chemical blending.

<p>False</p> Signup and view all the answers

Adding hydrated lime to soil can decrease plasticity, improve compaction, and increase strength by enhancing attractive forces between clay particles.

<p>True</p> Signup and view all the answers

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