7. The results of field unit weight determination of a soil sample using the sand cone method is as follows: Volume of soil: 0.001338 m³ Mass of soil: 2300 grams Dry mass of soil: 1910 grams In a laboratory, the soil yields a dry density of 1.495 g/cc at optimum moisture content of 20.8%. Specification requires that the compacted unit weight of the soil to be at least 95 % ± 2 %of the maximum laboratory value. a. What is the field unit weight of the soil in kN/m³? b. What is the in-situ water content of soil? c. What is the relative compaction of the soil, and did it comply with the specification? Yes or no
7. The results of field unit weight determination of a soil sample using the sand cone method is as follows: Volume of soil: 0.001338 m³ Mass of soil: 2300 grams Dry mass of soil: 1910 grams In a laboratory, the soil yields a dry density of 1.495 g/cc at optimum moisture content of 20.8%. Specification requires that the compacted unit weight of the soil to be at least 95 % ± 2 %of the maximum laboratory value. a. What is the field unit weight of the soil in kN/m³? b. What is the in-situ water content of soil? c. What is the relative compaction of the soil, and did it comply with the specification? Yes or no
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:7. The results of field unit weight determination of a
soil sample using the sand cone method is as follows:
Volume of soil: 0.001338 m³
Mass of soil: 2300 grams
Dry mass of soil: 1910 grams
In a laboratory, the soil yields a dry density of 1.495
g/cc at optimum moisture content of 20.8%.
Specification requires that the compacted unit weight
of the soil to be at least 95 % ± 2 %of the maximum
laboratory value.
a. What is the field unit weight of the soil in
kN/m³?
b. What is the in-situ water content of soil?
c. What is the relative compaction of the soil, and
did it comply with the specification? Yes or
no.
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