G R Infraprojects Interview Questions, Process, and Tips

Concrete mix design for higher grade involves selecting appropriate materials and proportions to achieve desired strength and durability.

• Higher grade concrete requires higher strength and durability

• Materials like cement, aggregates, and water need to be carefully selected and proportioned

• Admixtures may be added to improve workability, strength, or durability

• Testing and quality control are crucial to ensure desired prop...read more

I have worked on various types of structures including high-rise buildings, bridges, and industrial facilities.

• High-rise buildings

• Bridges

• Industrial facilities

• Residential buildings

• Commercial buildings

• Sports facilities

Launching girders are used to place precast segments of a bridge deck onto piers or abutments.

• Launching girders are typically used for long span bridges or bridges over waterways.

• They are designed to support the weight of the precast segments during placement.

• The girders are typically moved along the bridge using hydraulic jacks or rollers.

• Once in position, the precast segments are lifted onto the girders and then move...read more

The code of cement refers to the standard specifications and guidelines for manufacturing and testing cement.

• The code of cement provides information on the composition, physical properties, and performance requirements of cement.

• It includes guidelines for the manufacturing process, quality control, and testing methods.

• Examples of cement codes include ASTM C150, EN 197, and IS 269.

Specific gravity test of cement determines the density of cement particles.

• Specific gravity test measures the ratio of the density of cement to the density of water.

• It helps in assessing the quality and consistency of cement.

• The test involves weighing a known volume of cement and comparing it to the weight of an equal volume of water.

• The specific gravity of cement should be between 3.10 to 3.16.

• A higher specific gravit...read more

Incoming material testing details involve evaluating the quality and characteristics of materials before they are used in the lab.

• Testing involves various methods such as visual inspection, physical testing, and chemical analysis.

• Examples of tests include measuring pH levels, checking for impurities, and determining the melting point.

• Testing ensures that materials meet required specifications and standards.

• Results are ...read more