Density of cement using Le Chatelier flask

Determination of Density of cement as per IS 4031-Part 11: 1988

Test Standard : IS 4031-Part 11: 1988

Test Apparatus:

  1. Balance of accuracy
  2. Le-Chatelier’s Flask
  3. Constant temperature water bath
  4. Kerosene

Test Procedure density of cement

  1. Maintain the Laboratory at a temperature of 27±2 °C.
  2. Le-chatelier’s flask shall be test filled with kerosene to a point on a stem between 0 and 1.0 ml mark. The inside of the flask above the level of the liquid shall be dried, if necessary, after pouring.
  3. The flask shall be immersed in a constant temperature water bath maintained at room temperature for sufficient interval to avoid variation greater than 0.2 °C in the temperature of the liquid in the flask before recording the readings.
  4. The first reading shall be recorded (say R1, ml). A weighed quantity of cement (about 64gms) shall then be introduced in small amounts in the flask at the same temperature as the liquid. Care shall be taken to avoid splashing and to see that the cement does not adhere to the inside of the flask above the liquid.
  5. After all the cement has been introduced, the stopper shall be placed in the flask and the flask rolled in an inclined position or gently whirled in a horizontal circle so as to free the cement from air until no further air bubbles rise to the surface of the liquid.
  6. If a proper a quantity of cement has been added, the level of liquid will be in its final position at some point of upper series of the graduations.
  7. The final reading shall be recorded after the flask has been immersed in constant temperature water bath at room temperature (say R2, ml).
  8. The difference between the initial and final readings represents the volume of liquid displaced by mass of cement used in the test.

Density of cement (gm/cm³) = Mass of the cement (M, gms) / (Final reading (R2)- Initial Reading (R1))

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Founder & Admin of civilengineeringsolution.com, I am a civil engineer working as a Assistant Engineer (QA/QC).

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