1. DETERMINATION OF MOISTURE CONTENT
Determine the natural content of the given soil sample.
NEED AND SCOPE OF THE EXPERIMENT
In almost all soil tests natural moisture content of the soil is to be determined. The
knowledge of the natural moisture content is essential in all studies of soil mechanics.
To sight a few, natural moisture content is used in determining the bearing capacity
and settlement. The natural moisture content will give an idea of the state of soil in the
The natural water content also called the natural moisture content is the ratio of the
weight of water to the weight of the solids in a given mass of soil. This ratio is usually
expressed as percentage.
1. Non-corrodible air-tight container.
2. Electric oven, maintain the temperature between 1050 C to 1100 C.
4. Balance of sufficient sensitivity.
1. Clean the container with lid dry it and weigh it (W1).
2. Take a specimen of the sample in the container and weigh with lid (W2).
3. Keep the container in the oven with lid removed. Dry the specimen to constant
weight maintaining the temperature between 1050 C to 1100 C for a period varying
with the type of soil but usually 16 to 24 hours.
4. Record the final constant weight (W3) of the container with dried soil sample. Peat
and other organic soils are to be dried at lower temperature (say 600 ) possibly for a