Durability of cement concrete generally improves by

Workability of concrete is directly proportional to

The length of Vicat plunger in Vicat's apparatus varies from

The grade of concrete M₁₅₀ means that compressive strength of 15cm cube after 28 days is

Non-uniform compaction may cause the concrete

A moist aggregate is one

Workability of concrete mix with low water cement ratio is determined by

Which of the following cements is expected to have the highest compressive strength after 3 days?