Cleanflo India Interview Questions and Answers

The process of covering concrete placed on the exposed top of an external wall involves several steps.

• Clean the surface of the concrete to remove any dirt, dust, or debris.

• Apply a primer or bonding agent to enhance the adhesion of the covering material.

• Choose a suitable covering material such as paint, plaster, tiles, or cladding.

• Prepare the covering material according to the manufacturer's instructions.

• Apply the covering material evenly and smoothly over the concrete surface...read more

There are various waterproofing chemicals available for civil site engineering.

• Polyurethane-based waterproofing chemicals

• Acrylic-based waterproofing chemicals

• Bitumen-based waterproofing chemicals

• Cementitious waterproofing chemicals

• Silicone-based waterproofing chemicals

• Epoxy-based waterproofing chemicals

The volume of concrete can be measured using various methods such as the displacement method, the geometric method, or the unit weight method.

• Displacement method: In this method, the volume of concrete is determined by measuring the change in water level when the concrete is submerged in a container.

• Geometric method: This method involves measuring the dimensions of the concrete element (length, width, and height) and calculating the volume using the formula V = l × w × h.

• Unit...read more

Bearing capacity of soil refers to its ability to support the load of a structure without excessive settlement or failure.

• Bearing capacity is a crucial factor in determining the type and size of foundations for structures.

• It depends on various factors such as soil type, moisture content, compaction, and depth.

• Different types of soil have different bearing capacities. For example, clay has a lower bearing capacity compared to sand.

• The bearing capacity is typically expressed in...read more

The soundness of cement refers to its ability to retain its volume after setting.

• Soundness is an important property of cement that ensures its durability and long-term stability.

• It is measured by conducting the Le Chatelier test or the autoclave test.

• A sound cement will not undergo significant expansion or contraction after setting.

• Unsound cement may lead to cracks, reduced strength, and structural instability.

• For example, if cement expands excessively during setting, it can ...read more

Waterproofing is the process of making a structure or material resistant to the penetration of water.

• It involves the application of various techniques and materials to prevent water from entering or damaging a structure.

• Common waterproofing methods include the use of waterproof membranes, sealants, and coatings.

• Waterproofing is essential in construction to protect buildings, basements, roofs, and other structures from water damage.

• Examples of waterproofing applications includ...read more