Nansam Ventures Site Engineer Interview Questions and Answers

The ratio of M25 grade of concrete is 1:1:2.

• M25 grade of concrete is a mix of 1 part cement, 1 part sand, and 2 parts aggregate.

• The compressive strength of M25 grade concrete is 25 MPa or 3625 psi.

• M25 grade of concrete is commonly used in construction of buildings, bridges, and roads.

A raft is a type of foundation that spreads the load of a building over a large area.

• Raft foundation is a type of shallow foundation.

• It is used when the soil is weak and cannot support the weight of the building.

• It consists of a thick concrete slab that extends over the entire area of the building.

• The slab is reinforced with steel bars to provide additional strength.

• Examples of buildings that use raft foundation includ...read more

The strength of cube increases with time. Generally, it reaches 70-80% of its final strength after 7 days and 100% after 28 days.

• The strength of cube is measured in terms of compressive strength.

• After 3 days, the cube will have gained around 40-50% of its final strength.

• After 7 days, the cube will have gained around 70-80% of its final strength.

• After 14 days, the cube will have gained around 90% of its final strength.

• A...read more