China Railway Construction Corporation Interview Questions and Answers

RCC ful form is Reinforced Cement Concrete.

• RCC stands for Reinforced Cement Concrete.

• It is a composite material made of cement, sand, aggregates, and reinforcement bars.

• The reinforcement bars, usually made of steel, are embedded within the concrete to enhance its strength and durability.

• RCC is commonly used in the construction of buildings, bridges, dams, and other structures.

• It provides better tensile strength to with...read more

M20 is a grade of concrete commonly used in construction projects.

• M20 refers to the mix ratio of cement, sand, and aggregate in concrete.

• It is a medium-strength concrete grade with a compressive strength of 20 megapascals (MPa).

• M20 concrete is suitable for various applications like foundations, slabs, beams, columns, etc.

• The mix ratio for M20 concrete is typically 1:1.5:3, which means 1 part cement, 1.5 parts sand, and...read more

PCC stands for Plain Cement Concrete, which is a type of concrete mixture used in construction.

• PCC is made by mixing cement, sand, and coarse aggregates with water.

• It is used as a base for flooring, foundations, and other structural elements.

• PCC provides a smooth and level surface for further construction work.

• The proportions of cement, sand, and aggregates vary depending on the specific requirements of the project.

• For...read more