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Which of the following statements are incorrect about the preparation of subgrade in pavements?
  • a)
    subgrade shall be prepared over the full width of the embankment including shoulders
  • b)
    dry density after compaction of the subgrade layer shall not be less than 40 % of maximum dry density
  • c)
    material of subgrade shall be so worked as to have a uniform moisture content
  • d)
    all of the above
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Which of the following statements are incorrect about the preparation ...
Subgrade construction:
  • The subgrade is prepared for the full width of the embankment including shoulders. Part width working may be allowed with the prior written approval of the Engineer.
  • The subgrade shall be prepared in lengths of not less than 100 metres at any one time, unless otherwise approved by the Engineer.
  • The moisture content of the sub-grade material before compaction shall be within ±2% of the predetermined optimum moisture content. The dry density after compaction of the subgrade layer shall not be less than 98% of maximum dry density.
  • The material should be such that it has a uniform moisture content through the entire layer.
  • The subgrade material shall be compacted uniformly by use of adequate and appropriate compaction equipment.
  • The compaction shall be done in a longitudinal direction along the embankment and shall generally begin at the outer edges and progress toward the centre in such a manner that each section receives equal compactive effort.
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Which of the following statements are incorrect about the preparation of subgrade in pavements?a)subgrade shall be prepared over the full width of the embankment including shouldersb)dry density after compaction of the subgrade layer shall not be less than 40 % of maximum dry densityc)material of subgrade shall be so worked as to have a uniform moisture contentd)all of the aboveCorrect answer is option 'B'. Can you explain this answer?
Question Description
Which of the following statements are incorrect about the preparation of subgrade in pavements?a)subgrade shall be prepared over the full width of the embankment including shouldersb)dry density after compaction of the subgrade layer shall not be less than 40 % of maximum dry densityc)material of subgrade shall be so worked as to have a uniform moisture contentd)all of the aboveCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Which of the following statements are incorrect about the preparation of subgrade in pavements?a)subgrade shall be prepared over the full width of the embankment including shouldersb)dry density after compaction of the subgrade layer shall not be less than 40 % of maximum dry densityc)material of subgrade shall be so worked as to have a uniform moisture contentd)all of the aboveCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements are incorrect about the preparation of subgrade in pavements?a)subgrade shall be prepared over the full width of the embankment including shouldersb)dry density after compaction of the subgrade layer shall not be less than 40 % of maximum dry densityc)material of subgrade shall be so worked as to have a uniform moisture contentd)all of the aboveCorrect answer is option 'B'. Can you explain this answer?.
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