Su Square Projects And Infrastructure Civil Engineer Interview Questions and Answers

M20 mix ratio is a type of concrete mix used in construction. IS code recommends the ratio of cement, sand, and aggregate for M20 mix.

• M20 mix has a compressive strength of 20 MPa after 28 days of curing

• The recommended mix ratio for M20 is 1:1.5:3, which means 1 part cement, 1.5 parts sand, and 3 parts aggregate

• IS code 456-2000 recommends the mix ratio and other specifications for concrete work

The cube size used in compressive strength determining test is typically 150mm x 150mm x 150mm.

• The cube size is standardized by ASTM and IS codes.

• The cubes are cast in three layers and compacted using a standard vibration table.

• The cubes are cured in water for 28 days before testing.

• The compressive strength of the cubes is determined using a compression testing machine.

• The cube size may vary depending on the project sp

Water cement ratio test determines the amount of water needed to produce a certain consistency of cement.

• Water cement ratio test is done to determine the amount of water needed to produce a certain consistency of cement.

• The test involves mixing a certain amount of cement with water and measuring the consistency of the resulting mixture.

• The result of the test is expressed as a ratio of the weight of water to the weight ...read more