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Q: Which of the following is determined with the help of Le Chatelier's device?
  • A. Abrasion resistance
  • B. Chemical resistance
  • C. Soundness
  • D. Strength
Correct Answer: Option C - Soundness of cement may be tested by Le-Chatelier apparatus or by autoclave method. It is essential that the cement concrete does not undergo large change in volume after setting. For OPC, RHC, LHC and PPC it is limited to 10mm, whereas far HAC and SSC it should not exceed 5mm. By Le-Chatelier method we can only find out presence of unburnt lime CaO.
C. Soundness of cement may be tested by Le-Chatelier apparatus or by autoclave method. It is essential that the cement concrete does not undergo large change in volume after setting. For OPC, RHC, LHC and PPC it is limited to 10mm, whereas far HAC and SSC it should not exceed 5mm. By Le-Chatelier method we can only find out presence of unburnt lime CaO.

Explanations:

Soundness of cement may be tested by Le-Chatelier apparatus or by autoclave method. It is essential that the cement concrete does not undergo large change in volume after setting. For OPC, RHC, LHC and PPC it is limited to 10mm, whereas far HAC and SSC it should not exceed 5mm. By Le-Chatelier method we can only find out presence of unburnt lime CaO.