Machine-translated by Google. Questions are authored in English.
Top

Discussion

What should be the maximum aggregate crushing value used in concrete roads and pavements as per IS:383-1970?

  • A.20%
  • B.30%
  • C.40%
  • D.50%

Answer: B

IS 383 limits the aggregate crushing value of coarse aggregate to 45 percent for concrete other than wearing surfaces, and to 30 percent for aggregate used in concrete for wearing surfaces such as runways, roads and pavements. A wearing surface is exposed to abrasion and traffic, so a stronger aggregate is needed. The values of 20, 40 and 50 percent are not the limits in the code.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.