Determination of the specific gravity

OBJECTIVE 

Pick the particular gravity of soil separation passing 4.75 mm I.S strainer by thickness bottle.

NEED AND SCOPE 

The information of particular gravity is required in estimation of soil properties like void degree, level of dousing and so forth.

DEFINITION 

Particular gravity G is depicted as the degree of the enormity of a proportionate volume of refined water at that temperature both weights taken in air.

Mechanical social event REQUIRED 

1. Thickness compartment of 50 ml with connection having thin opening.

2. Evening out to measure the materials (exactness 10gm).

3. Wash bottle with refined water.

4. Liquor and ether.

Framework 

1. Spotless and dry the thickness bottle

a. wash the holder with water and permit it to deplete.

b. Wash it with liquor and channel it to exhaust water.

c. Wash it with ether, to exhaust liquor and channel ether.

2. Measure the unfilled compartment with fitting (W1)

3. Take around 10 to 20 gm of broiler soil test which is cooled in a desiccator. Exchange it to the compartment. Discover the expansiveness of the compartment and soil (W2).

4. Put 10ml of refined water in the holder to permit the dirt to sprinkle totally. Give up it for around 2 hours.

5. Again fill the holder completely with refined water put the fitting and hold the compartment under solid temperature water showers (Tx0 ).

6. Take the compartment outside and wipe it immaculate and dry note. In a matter of moments pick the hugeness of the compartment and the substance (W3).

7. Right away exhaust the holder and completely clean it. Fill the compartment with just disttiled water and measure it. Permit it to be W4 at temperature (Tx0 C).

8. Go over the same technique for 2 to 3 times, to take the standard analyzing of it.

Acknowledgments 

S. No. Acknowledgment Number 1 2 3

1

2

3

4 Weight of thickness compartment (W1 g)

Weight of thickness compartment + dry soil (W2 g)

Weight of compartment + dry soil + water at temperature T x0C (W3 g)

Weight of compartment + water (W4 g) at temperature Tx0 C

Particular gravity G at Tx0 C

Regular particular gravity at Tx0 C

Understanding AND REPORTING 

Unless or generally chose particular gravity values reported should be set up on water at 270C. So the particular gravity at 270C = K�Sp. gravity at Tx0C.

The particular gravity of the dirt particles lie with in the degree of 2.65 to 2.85. Soils containing trademark matter and permeable particles may have particular gravity values underneath 2.0. Soils having overwhelming substances may have values above 3.0.