3. Soil Compaction Techniques
Soil compaction plays a vital role in enhancing the engineering properties of soil for transportation construction. The chapter outlines various techniques, factors influencing compaction, laboratory tests, field methods, and equipment used for effective compaction. It also delves into specific challenges and recent advances in soil compaction technology.
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Sections
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What we have learnt
- Soil compaction increases density by expelling air voids and improves load-bearing capacity.
- Factors affecting soil compaction include soil type, moisture content, and compactive effort.
- Different equipment is used for granular and cohesive soils, and recent advances include intelligent compaction using GPS and sensors.
Key Concepts
- -- Soil Compaction
- The process of densifying soil by reducing air voids, enhancing its engineering properties.
- -- Optimum Moisture Content (OMC)
- The moisture level at which a specific soil type achieves its maximum density.
- -- Proctor Test
- A laboratory test to determine the OMC and maximum dry density (MDD) of a soil sample.
- -- Field Compaction Methods
- Techniques employed in the field to achieve effective soil compaction, including static, dynamic, kneading, and vibratory compaction.
- -- Intelligent Compaction (IC)
- A technique using GPS and sensors for real-time monitoring of soil compaction and adjustments.
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