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GATE 2018 CE (CE2) – Question 15

Construction Materials · Cement: hydration, admixtures · 1 mark · Multiple choice

Cement setting time is determined using ______.

  1. Le Chatelier apparatus
  2. Briquette testing apparatus
  3. Vicat apparatus
  4. Casagrande apparatus

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Show answer and explanation

Correct answer: (C) Vicat apparatus

Explanation

The **Vicat apparatus, C** measures penetration of the prescribed needle or attachment into cement paste as it sets. Initial and final setting are defined by the specified penetration criteria. Le Chatelier tests soundness, and Casagrande equipment concerns soil consistency.