H.G. Infra Engineering Interview Questions, Process, and Tips

Admixtures are used in concrete to enhance its properties. Common types include water reducers, accelerators, and air-entraining agents.

• Water reducers: reduce the amount of water needed for workability without affecting strength

• Accelerators: speed up the setting and hardening process

• Air-entraining agents: create small air bubbles to improve freeze-thaw resistance

• Retarders: delay the setting time

• Superplasticizers: impro...read more

Concrete design mix and minimum cement content are determined by the applicable code.

• Concrete design mix is determined based on the required strength and durability of the structure.

• Minimum cement content is specified by the code to ensure adequate strength and durability.

• For example, ACI 318 specifies a minimum cement content of 564 kg/m3 for concrete with a compressive strength of 28 MPa.

• Other factors such as water-c...read more

I have experience handling various site difficulties such as equipment breakdowns, power outages, and weather-related issues.

• Managed a team to quickly resolve a power outage that occurred during a critical production period

• Implemented a preventative maintenance program to reduce equipment breakdowns

• Coordinated with local authorities to ensure safety during severe weather conditions

• Developed contingency plans for unexpe...read more