What is IRC 37?

The Pavement designs given in the previous edition IRC:37-1984 were applicable to design traffic upto only 30 million standard axles (msa). These guidelines will apply to design of flexible pavements for Expressway, National Highways, State Highways, Major District Roads, and other categories of roads.

Which of the following method is recommended by IRC 37 2018 for designing of flexible pavement?

Group Index method of design of flexible pavement has been obsolete nowadays. In the recent revision of IRC 37-2018, IITPAVE software is used to determine the thickness of compositions of pavement based on the CBR values.

Which of the following is recommended by IRC for design of flexible pavement?

the CBR method
Detailed Solution The method of design of flexible pavement as recommended by IRC is the CBR method.

What is effective CBR?

Composite strength of the subgrade and the embankment soil below it is termed as EFFECTIVE CBR. ▪ This composite strength should be taken for design consideration ▪ This composite strength should be taken for design consideration rather than strength of top 500mm.

Which software is used for flexible pavement design as per IRC 37?

Design of Flexible pavement On IITPave software as per IRC 37 : 2018.

What are the three types of methods in designing a flexible pavement?

Two methods of flexible pavement structural design are common today: Empirical design and mechanistic empirical design.

  • 2.1 Empirical design.
  • 2.2 Mechanistic-Empirical Design.
  • 3.1 Equivalent single wheel load.
  • 3.2 Equivalent single axle load.
  • 4.1 Resilient modulus of soil.
  • 4.2 Dynamic complex modulus.

What is the minimum CBR value for subgrade?

According to the subgrade characterization which recommends 10% as minimum CBR value for the layer [1], the subgrade material proved adequate as this value appears to have been exceeded by a wide margin at most of the sections along the road. …

Which method is recommended by IRC?

Explanation: The CBR method is recommended by IRC because it gives very reliable accuracy as the test depends on soil characteristics, IRC 6,21 and 58 are the code books for various pavement design.

When did the IRC was set up?

The Indian Roads Congress (IRC) is the Apex Body of Highway Engineers in the country. The IRC was set up in December, 1934 on the recommendations of the Indian Road Development Committee best known as Jayakar Committee set up by the Govt. of India with the objective of Road Development in India.