Situation 1: The natural moisture content of a soil mass is 11%, while its void ratio is 0.63. Assuming the void ratio to remain unchanged, determine the quantity of water to be added to 1 m³ of this soil in order to double its moisture content. Use specific gravity of soil solids =2.72.

Situation 1: The natural moisture content of a soil mass is 11%, while its void ratio is 0.63. Assuming the void ratio to remain unchanged, determine the quantity of water to be added to 1 m³ of this soil in order to double its moisture content. Use specific gravity of soil solids =2.72.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter3: Weight–volume Relationships

Section: Chapter Questions

Problem 3.18P

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Weight-Volume relationships

Weight is defined as the quantity of matter contained in a body. Weight can also be defined as the force acting on a body due to gravity. Mathematically, weight can be defined as-

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Situation 1: The natural moisture content of a soil mass is 11%, while its
void ratio is 0.63. Assuming the void ratio to remain unchanged, determine the
quantity of water to be added to 1 m³ of this soil in order to double its
moisture content. Use specific gravity of soil solids =2.72.

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A moist soil has a void ratio of 0.65. The soil moisture content is 14% and its solids density or relative specific weight of solids is 2.7. Determine: a. What is the saturated unit weight in kN/m3?b. How much water, in kN/m3, needs to be added to the soil for it to be completely saturated?c. What would be the wet unit weight in kN/m3 when the degree of saturation is 70%?
2. A saturated soil with specific gravity of solids equal to 2.65 has a unit weight of 19KN /m^3. Determine the dry unit weight (KN/m^3) and porosity of the soil sample.
4. An in-situ soil sample weigh 25 kg of 0.02 cubic meter with a moisture content of 7% and specific gravity of 2.8. Determine the following: Moist Unit Weight, Dry Unit Weight, Moist Density, Dry Density, Void Ratio, Porosity, and the Degree of Saturation. (Calculate the Unit Weight and Density in Metric and English Units).
Calculate the dry unit weight, the saturated unit weight and the buoyant unit weight of a soil having a void ratio of 0.70 and a value of Gs = 2.72. Calculate also the unit weight and water content at a degree of saturation of 75%.
The moist unit weight of a soil is 119.5 lb/ft3. For a moisture content of 12% and Gs = 2.65, calculate: Void ratio
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For a given soil, the following are known, Gs = 2.70, moist unit weight is 20.3067kN/m3, and the moisture content of 15%. Determine the:1. Dry unit weight (in kN/m3). 2. Saturated unit weight unit weight (in kN/m3).3. Effective unit weight (γ′) of the soil sample (in kN/m3). 4. Void Ratio5. Porosity (in %).6. Degree of saturation (in %).7. Determine the volume of water in liters to be added per cubic meter of soil for a 100% degree ofsaturation.If the sample has weight of 50g, determine the:8. Weight of the solid9. Weight of the water10. Weight of the air11. Volume of solid12. Volume of water13. Volume of air
11. Situation 11 - The moist unit weight and degree of saturation of a soil are given in the following table. a. Determine the unit weight of the soil in kN/m3 if s = 13%. Round off to two decimal places. bDetermine the unit weight of the soil in kN/m3 if s = 69%. Round off to two decimal places. c. Determine the saturated unit weight in kN/m3. Round off to two decimal places.