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Q: Soundness test of cement determines
  • A. Quantity of free lime
  • B. Ultimate strength
  • C. Durability
  • D. Initial setting
Correct Answer: Option A - Soundness test of cement determines quantity of free lime and magnesia. • Generally soundness test for cement uses two method/apparatus. Le-chatelier method–The mould is placed on a glass sheet and is filled with net cement paste formed by gauging 100 g cement with 0.78 times the water required to give a paste of standard consistency • Test for expansion due to excess lime. Autoclave test–Test for expansion due to excess of both free lime and magnesia.
A. Soundness test of cement determines quantity of free lime and magnesia. • Generally soundness test for cement uses two method/apparatus. Le-chatelier method–The mould is placed on a glass sheet and is filled with net cement paste formed by gauging 100 g cement with 0.78 times the water required to give a paste of standard consistency • Test for expansion due to excess lime. Autoclave test–Test for expansion due to excess of both free lime and magnesia.

Explanations:

Soundness test of cement determines quantity of free lime and magnesia. • Generally soundness test for cement uses two method/apparatus. Le-chatelier method–The mould is placed on a glass sheet and is filled with net cement paste formed by gauging 100 g cement with 0.78 times the water required to give a paste of standard consistency • Test for expansion due to excess lime. Autoclave test–Test for expansion due to excess of both free lime and magnesia.