ITD Cementation India Lab Technician Interview Questions and Answers

Reinforced concrete is a composite material made of concrete and reinforcement steel bars.

• Reinforcement steel bars are embedded in the concrete to provide tensile strength

• The combination of concrete and steel creates a material that is strong in both compression and tension

• Reinforced concrete is commonly used in construction for buildings, bridges, and other structures

• The thickness and spacing of the reinforcement bars...read more

Nominal concrete proportion varies for different grades of concrete.

• Nominal mix for M10 grade is 1:3:6 (cement:sand:aggregate)

• Nominal mix for M20 grade is 1:2:4

• Nominal mix for M30 grade is 1:1.5:3

• Nominal mix for M40 grade is 1:1:2

• Nominal mix for M50 grade is 1:0.75:1.5

Concrete tests are used to determine the strength and quality of concrete.

• Compression test measures the strength of concrete under compression

• Slump test measures the consistency of fresh concrete

• Air content test measures the amount of air in concrete

• Water permeability test measures the ability of concrete to resist water penetration

• Chloride permeability test measures the ability of concrete to resist chloride penetrati...read more

Triaxial test is a soil testing method used to determine the shear strength parameters of soil.

• Triaxial test involves applying a confining pressure to a cylindrical soil sample and then subjecting it to an axial load.

• The test helps in determining the shear strength parameters of soil such as cohesion and angle of internal friction.

• It is commonly used in geotechnical engineering for designing foundations, retaining wall...read more