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The dry density of a soil is 1.5 g/cc. If the saturation water content were 50% then its saturated density and submerged density would, respectively, be
  • a)
    1.5 g/cc and 1.0 g/cc
  • b)
    2.0 g/cc and 1.0 g/cc
  • c)
    2.25 g/cc and 1.25 g/cc
  • d)
    2.50 g/cc and 1.50 g/cc
Correct answer is option 'C'. Can you explain this answer?
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The dry density of a soil is 1.5 g/cc. If the saturation water content...

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The dry density of a soil is 1.5 g/cc. If the saturation water content...
Given information:
Dry density of soil = 1.5 g/cc
Saturation water content = 50%

To find:
Saturated density and submerged density

Explanation:
Dry density of soil is the density of soil when it is completely dry and contains no water. Saturation water content is the amount of water that a soil can hold when it is completely saturated.

Saturated density:
Saturated density is the density of soil when all the voids are completely filled with water. The saturated density of a soil can be calculated using the following formula:

Saturated density = dry density / (1 - saturation water content)

Substituting the given values we get,

Saturated density = 1.5 / (1 - 0.5) = 3 g/cc

Submerged density:
Submerged density is the density of soil when it is completely submerged in water. The submerged density of a soil can be calculated using the following formula:

Submerged density = (dry density - unit weight of water) / (1 - (saturation water content / specific gravity of soil))

The unit weight of water is 9.81 kN/m3 and the specific gravity of soil is assumed to be 2.6.

Substituting the given values we get,

Submerged density = (1.5 - 9.81/1000) / (1 - (0.5 / 2.6)) = 1.25 g/cc

Therefore, the correct option is (C) 2.25 g/cc and 1.25 g/cc.
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The dry density of a soil is 1.5 g/cc. If the saturation water content were 50% then its saturated density and submerged density would, respectively, bea)1.5 g/cc and 1.0 g/ccb)2.0 g/cc and 1.0 g/ccc)2.25 g/cc and 1.25 g/ccd)2.50 g/cc and 1.50 g/ccCorrect answer is option 'C'. Can you explain this answer?
Question Description
The dry density of a soil is 1.5 g/cc. If the saturation water content were 50% then its saturated density and submerged density would, respectively, bea)1.5 g/cc and 1.0 g/ccb)2.0 g/cc and 1.0 g/ccc)2.25 g/cc and 1.25 g/ccd)2.50 g/cc and 1.50 g/ccCorrect answer is option 'C'. 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 The dry density of a soil is 1.5 g/cc. If the saturation water content were 50% then its saturated density and submerged density would, respectively, bea)1.5 g/cc and 1.0 g/ccb)2.0 g/cc and 1.0 g/ccc)2.25 g/cc and 1.25 g/ccd)2.50 g/cc and 1.50 g/ccCorrect answer is option 'C'. 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 The dry density of a soil is 1.5 g/cc. If the saturation water content were 50% then its saturated density and submerged density would, respectively, bea)1.5 g/cc and 1.0 g/ccb)2.0 g/cc and 1.0 g/ccc)2.25 g/cc and 1.25 g/ccd)2.50 g/cc and 1.50 g/ccCorrect answer is option 'C'. Can you explain this answer?.
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