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Mr. Dubey • 100.64K Points
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Q. As per IRC recommendations, the sub-grade or sub-base layer whatever underlies the concrete wearing slab, in concrete pavements, must confirm to the requirement that

  • (A) no soft spots are present in the sub-grade or sub-base
  • (B) the base or sub-base extends to atleast 30 cm wider on either side of the width to be concreted
  • (C) the sub-grade is properly drained
  • (D) all of the above
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