Durocrete Engineering Services Interview Questions and Answers

IS code for aggregate testing is IS 2386 Part 4: 1963

• IS code for aggregate testing is IS 2386 Part 4: 1963

• It specifies the methods for testing coarse and fine aggregates for construction purposes

• The code covers tests like sieve analysis, specific gravity, water absorption, etc.

The pace rate of a CTM machine for concrete cube is the rate at which the load is applied during compression testing.

• Pace rate is typically set at 0.5 MPa/sec for concrete cube testing.

• It is important to maintain a consistent pace rate to ensure accurate and reliable test results.

• Different standards may specify different pace rates for CTM machines, so it is important to follow the relevant guidelines.

• For example, ASTM...read more

Concrete mix design process involves selecting suitable ingredients and determining their proportions to achieve desired properties.

• Identify the requirements of the concrete such as strength, workability, durability, etc.

• Select suitable materials like cement, aggregates, water, and admixtures.

• Determine the proportions of each material based on their properties and desired concrete characteristics.

• Perform trial mixes an...read more

IS code for concrete mix design is IS 10262:2009

• IS code for concrete mix design is IS 10262:2009

• This code provides guidelines for proportioning concrete mixes based on strength, workability, and durability requirements

• It covers the method of mix design for ordinary, standard, and high strength concrete