Use the test results to classify the soil in accordance with the Unified Soil Cl

Question

Use the test results to classify the soil in accordance with the Unified Soil Classification System and describe engineering characteristics of the soil based on the laboratory test.

Use the test results to classify the soil in accordance with the Unified Soil Classification System and describe engineering characteristics of the soil based on the laboratory test.

Liquid Limit Data Test 2 1.10 g 7.90 g Test 3 1.30 g 7.10 g Test 1 Mass of Container1.35 g Mass of Container+ 12.3 g Moist Soil (g) 5.55 g 5.15g Mass of Container +8.80 g Dry Soil (g) Mass of Water (g) 3.50 g Mass of Solids (g)7.45 g Moisture Content % 47.0% Number of Blows 2.35 g 4.45 g $25% 28 1.95 g 3.85 g 50.6% 20 S 28

Explanation / Answer

Liquid Limit is the moisture content corresponding to 25 number of blows = 52% (>50)

Plastic limit = 27.5 %

Plasticity index, PI=52-27.5=24.5

Plasticity index corresponding to A-line = 0.73*(52-20)=23.36

PI of soil is above A-line

Soild is CH per USCS soil classification, i.e., it is a Fat clay

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