3.1 General
Index properties are used in the identification and determination of soils for engineering purposes. In this chapter we are going to deal with the determination the index properties of the soils, Here is the list of index properties of soils.

1. Water Content

2. Specific Gravity

3. In-situ Density

4. Density Index

5. Consistency Limits

6. Particle Size Distribution

3.2 Water Content
This is the list of the mehthods which are used to determine the water content of a soil sample.

1. Oven drying method

2. Sand bath method

3. Alcohol method

4. Calcium Carbide method

5. pycnometer method

6. Radiation method

7. Torsion balance method