Elite InfoWorld Interview Questions and Answers

The ratio of M25 refers to the mix proportion of concrete, where M represents the mix and 25 represents the compressive strength of concrete in megapascals (MPa).

• M25 is a commonly used mix proportion for concrete in construction.

• The M in M25 stands for mix, indicating the type and proportion of materials used in the concrete mix.

• The number 25 in M25 represents the target compressive strength of the concrete in megapascals (MPa).

• The M25 mix typically consists of 1 part cement,...read more

Lapping length is the overlap of two reinforcing bars to ensure continuity, while development length is the length required to transfer the stress from the bar to the surrounding concrete.

• Lapping length is used to maintain the strength and integrity of reinforced concrete structures.

• It is necessary to provide lapping length to ensure the load is transferred smoothly from one bar to another.

• The lapping length is typically specified in building codes or engineering standards.

• Fo...read more

The minimum grade of concrete for RCC (Reinforced Cement Concrete) is M20.

• The minimum grade of concrete for RCC is determined based on the structural requirements and design specifications.

• The grade of concrete is denoted by the mix ratio of cement, sand, and aggregate.

• M20 grade concrete means that the mix ratio is 1:1.5:3, where 1 part of cement, 1.5 parts of sand, and 3 parts of aggregate are used.

• This grade of concrete is commonly used for residential and light commercial ...read more

ld for M25 and Fe500 is not a standard term in civil engineering.

• ld is not a standard term in civil engineering

• It is possible that the interviewer meant to ask for something else

• M25 and Fe500 are grades of concrete and steel respectively

Development length is the length of reinforcement required to transfer the stress from the steel to the surrounding concrete.

• It is the minimum length of reinforcement bars that must be embedded in concrete to ensure proper bond strength.

• Development length depends on factors like bar diameter, concrete strength, and type of reinforcement.

• It is necessary to prevent the steel bars from slipping or pulling out of the concrete.

• For example, in a reinforced concrete beam, the develo...read more