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Questions and Answers
What is the primary reason why flat roofs need to be made waterproof?
What is the primary reason why flat roofs need to be made waterproof?
- Concrete itself is not watertight (correct)
- Excessive water cement ratio
- Lack of timely curing
- Improper gradation of materials
Which factor is NOT mentioned as a reason for concrete losing its permeability?
Which factor is NOT mentioned as a reason for concrete losing its permeability?
- Excessive water cement ratio
- Less compaction
- Improper gradation of materials
- Proper pouring and curing practices (correct)
What is the primary purpose of employing various methods for moisture proofing flat roofs?
What is the primary purpose of employing various methods for moisture proofing flat roofs?
- To make the roof waterproof (correct)
- To decrease the water cement ratio
- To increase the porosity of concrete
- To improve the gradation of materials
Which factor is NOT mentioned as a cause of damage to concrete structures?
Which factor is NOT mentioned as a cause of damage to concrete structures?
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What is the main reason for classifying water proofing methods?
What is the main reason for classifying water proofing methods?
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