Maximum dry unit weight (kn/m^3) of soil sample if optimum moisture content is 22% b. As Civil Engineer, will you allow concrete pouring in Road Lot 1 base on FDT result? (Relative compaction should be equal or higher than 95%) c. As Civil Engineer, will you allow concrete pouring in Road Lot 2 base on FDT result? (Relative compaction should be equal or higher than 95%)
In an ongoing land development project, a Contractor requested for a concrete
pouring request. After conducting a field density test in Road Lot 1 and 2, the results of
Sand Cone Method (ysand = 16.353 kN/m^3) are as follows:
Location
Road Lot 1
Road Lot 2
Total Weight of Sand (kg)
7.40
7.40
Retained Mass of Sand (kg)
6.2
6.3
Moisture Content (%)
20%
19%
Weight of Soil Sample (kg)
1.39
1.30
Properties of Soil base on Soil Investigation Result:
Weight of Soil Sammple - 1.631 kg
Volume of Soil Sample – 0.0008 cu.m.
Determine the following:
a. Maximum dry unit weight (kn/m^3) of soil sample if optimum moisture content is 22%
b. As Civil Engineer, will you allow concrete pouring in Road Lot 1 base on FDT result? (Relative compaction should be equal or higher than 95%)
c. As Civil Engineer, will you allow concrete pouring in Road Lot 2 base on FDT result? (Relative compaction should be equal or higher than 95%)
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