How to calculate specific gravity of cement?

How to calculate specific gravity of cement?

Using Le Chatelier Flask method, we can determine this value. This is an experiment conducted at the site level.

Object:

To find specific gravity of cement value Required Materials & Apparatus:

1-Ordinary Portland Cement

2-Kerosene

3-Le-Chatelier Flask capacity of 250 ml or Specific Gravity Bottle / Pycnometer (100 ml)

4-Weighing balance with 0.1 gm accurate

Test Procedure:

1-The Flask should be free from the liquid that means it should be fully dry. Weigh the empty flask(W1)

2-Fill the cement on the bottle up to half of the flask (about 50gm) and weigh with its stopper (W2)

3-Add Kerosene to the cement up to the top of the bottle. Mix well to remove the air bubbles in it. Weigh the flask with cement and kerosene (W3)

4-Empty the flask. Fill the bottle with kerosene up to the top and weigh the flask (W4)

5-Calculation:

-For calculation procedure ,please see figure No. (1)

-Specific gravity of kerosene is 0.79 g/cc

Note:

The error value will be acceptable ±0.01.

The practical will be done within 30° C temperature.