L&T Construction Construction Site Supervisor, Construction Site Engineer Interview Questions and Answers

Mix design is the process of determining the proportions of cement, water, aggregates, and admixtures to produce a concrete mix with desired properties.

• Mix design is crucial for achieving the desired strength, workability, and durability of concrete.

• It involves selecting the appropriate materials and determining their proportions based on the desired properties of the concrete.

• Factors such as the type of cement, aggreg...read more

OPC 43 grade cement is commonly preferred for mix design in construction sites.

• OPC 43 grade cement has a higher compressive strength compared to OPC 33 grade cement.

• It is suitable for construction of buildings, bridges, and other structures.

• OPC 43 grade cement is cost-effective and easily available in the market.

• It is important to consider the specific requirements of the project before finalizing the mix design.

Quality control refers to the process of ensuring that products or services meet the desired level of quality.

• Quality control involves inspecting and testing products or services to ensure they meet the required standards.

• It also involves identifying and correcting any defects or issues that may arise during the production process.

• Quality control is important in construction to ensure that buildings and structures are ...read more

IS code for OPC 33/43/53 is IS 269:2015

• IS 269:2015 is the Indian Standard code for OPC 33/43/53

• This code specifies the requirements and methods of sampling and testing for ordinary Portland cement

• OPC 33/43/53 refers to the compressive strength of the cement in megapascals (MPa)

• OPC 33 has a compressive strength of 33 MPa, OPC 43 has a compressive strength of 43 MPa, and OPC 53 has a compressive strength of 53 MPa

The slum rate for column concrete is not a standard term in construction. Please provide more context.

• Slump test is used to measure the consistency of concrete.

• The slump test measures the vertical settlement of the concrete after the slump cone is removed.

• The slump test is not used to determine the rate of concrete for columns.

• The rate of concrete for columns depends on the design specifications and the construction sc