BPR Infrastructure Interview Questions and Answers

Waterproofing a retaining wall involves various methods to prevent water infiltration and protect structural integrity.

• 1. Use of waterproof membranes: These are applied to the wall surface to create a barrier against water.

• 2. Drainage systems: Installing weep holes or drainage pipes to redirect water away from the wall.

• 3. Backfill with gravel: Using gravel as backfill material allows for better drainage and reduces hydrostatic pressure.

• 4. Coatings and sealants: Applying speci...read more

PU waterproofing uses polyurethane to create a durable, flexible barrier against water, ideal for various construction applications.

• Highly flexible and durable, making it suitable for surfaces that experience movement.

• Commonly used in roofs, terraces, and balconies to prevent water ingress.

• Ideal for basements and foundations to protect against moisture and flooding.

• Used in water tanks and swimming pools for effective waterproofing.

• Can be applied on various substrates, includi...read more

Expansion joints are treated using various methods to ensure flexibility and prevent damage in structures.

• Regular inspection and maintenance to identify wear and tear.

• Use of sealants to prevent water ingress and corrosion.

• Replacement of damaged joints with new materials, such as elastomeric or metallic joints.

• Installation of protective covers to shield joints from environmental factors.

• Application of lubricants to reduce friction and wear.

Waterproofing a podium involves several steps to ensure durability and protection against water damage.

• 1. Surface Preparation: Clean the podium surface to remove dirt, debris, and any existing coatings.

• 2. Repair Cracks: Fill any cracks or gaps with appropriate sealants to prevent water ingress.

• 3. Apply Waterproof Membrane: Use a liquid or sheet membrane to create a barrier against water.

• 4. Install Drainage Systems: Ensure proper drainage to direct water away from the podium.

• 5...read more

Waterproofing involves various methods to prevent water infiltration in structures, ensuring durability and safety.

• 1. Membrane Waterproofing: Uses sheets or liquid membranes to create a barrier. Example: Bituminous membranes.

• 2. Integral Waterproofing: Adds waterproofing agents to concrete mix. Example: Crystalline waterproofing.

• 3. Coating Waterproofing: Applies a protective layer on surfaces. Example: Elastomeric coatings.

• 4. Drainage Waterproofing: Involves systems to redirec...read more

Basement waterproofing involves techniques to prevent water intrusion and protect the foundation from moisture damage.

• Exterior Waterproofing: Involves digging around the foundation and applying waterproof membranes.

• Interior Waterproofing: Uses sealants and coatings on walls and floors to prevent moisture penetration.

• French Drains: A drainage system installed around the foundation to redirect water away.

• Sump Pumps: Devices installed in basements to pump out accumulated water.

• C...read more