Determination Of Moisture Content By Oven Dry Method

OBJECTIVE 

Decide the characteristic substance of the given soil test.

NEED AND SCOPE OF THE EXPERIMENT 

In all dirt tests characteristic dampness substance of the dirt is to be resolved. The information of the common dampness substance is key in all investigations of soil mechanics. To locate a couple of, characteristic dampness substance is utilized as a part of deciding the bearing limit and settlement. The characteristic dampness substance will give a thought of the condition of soil in the field.

DEFINITION 

The regular water content likewise called the common dampness substance is the proportion of the heaviness of water to the heaviness of the solids in a given mass of soil. This proportion is normally communicated as rate.

Contraption REQUIRED 

Non-corrodible water/air proof compartment.

Electric broiler, keep up the temperature between 100

Desiccator.

Equalization of adequate affectability.

Methodology

Clean the holder with cover dry it and measure it (W1).

Take an example of the specimen in the compartment and weigh with top (W2).

Keep the holder in the stove with top evacuated. Dry the example to steady weight keeping up the temperature between 100 ± 105 for a period changing with the kind of soil however as a rule 16 to 24 hours.

Record the last consistent weight (W3) of the compartment with dried soil test. Peat and other natural soils are to be dried at lower temperature (say 600) perhaps for a more extended period.

Certain dirts contain gypsum which on warming loses its water if crystallization. On the off chance that it is suspected that gypsum is available in the dirt specimen utilized for dampness content determination it might be dried at not more than 800 C and perhaps for a more drawn out time.

Perceptions AND RECORDING 

Information and perception sheet for water content determination

S.No. Test No. 1 2 3

1 Weight of compartment with top W1gm

2 Weight of compartment with top +wet soil W2gm

3 Weight of compartment with top +dry soil W3gm

4 Water/Moisture content

W = [(W2W3)/(W3W1)]�100

Elucidation AND REPORTING 

RESULT 

The common dampness substance of the dirt example is ________

GENERAL REMARKS 

1. A compartment without top can be utilized, when clammy specimen is weighed instantly in the wake of setting the holder and stove dried example is weighed quickly in the wake of cooling in desiccator.

2. As dry soil retains dampness from wet soil, dried examples ought to be expelled before putting wet specimens in the broiler.