4. Inter-Relations
Soil properties and their inter-relationships play a crucial role in geotechnical engineering, affecting subsequent tests and analysis. Accurate measurement of water content and unit weight upon laboratory receipt are fundamental due to potential changes during transportation. The chapter details calculations for dry and moist unit weights, void ratios, and specific gravities, all essential for understanding the physical state of soils.
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What we have learnt
- The importance of measuring water content and unit weight immediately upon receipt in the laboratory.
- Inter-relationships between various soil properties, such as void ratio, moisture content, and specific gravity.
- How to calculate dry unit weight, moist unit weight, and the amount of water needed for soil saturation.
Key Concepts
- -- Water Content
- The ratio of the mass of water contained in the soil to the mass of dry soil, often expressed as a percentage.
- -- Unit Weight
- The weight of soil per unit volume, which can be affected by moisture content and compaction.
- -- Void Ratio
- The ratio of the volume of voids in a soil sample to the volume of solids.
- -- Specific Gravity
- A measure of the density of soil solids compared to the density of water.
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