Computer · Building Materials
Identify the correct pair(s) from the following based on the types of cement and their respective standard characteristics: 1. Initial setting time of ordinary Portland cement: Not more than 30 minutes2. Initial setting time of sulphate resistant Portland cement: Not less than 45 minutes3. Final setting time of sulphate resistant Portland cement: Not more than 600 minutes
- 1Only 3✓
- 2Only 2 and 3
- 3Only 1 and 3
- 4Only 2
Correct answer
Only 3
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