Question:
The Vicat apparatus is used to measure
The Vicat apparatus is used to measure
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Vicat apparatus is used for determining standard consistency and setting time of cement.
Updated On: May 7, 2026
- Setting time
- Particle size
- Soundness
- Strength
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The Correct Option is A
Solution and Explanation
The Vicat apparatus is an important testing instrument used in cement testing.
It is mainly used to determine:
\[
\text{standard consistency}
\]
and
\[
\text{initial and final setting time of cement}.
\]
Setting time tells us how quickly cement paste changes from plastic state to hardened state.
Initial setting time is the time at which cement paste starts losing plasticity.
Final setting time is the time at which cement paste becomes sufficiently hard.
The Vicat apparatus uses a needle or plunger to penetrate cement paste.
The depth of penetration helps determine setting behavior.
Particle size is determined by sieving or fineness tests.
Soundness is commonly tested by Le Chatelier apparatus or autoclave test.
Strength is tested by compression testing machine.
Therefore, the Vicat apparatus is used to measure:
\[
\text{Setting time}.
\]
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