A sample of dry soil is coated with a thin layer of paraffin and has a mass of 460 g. It displaced 300 cc of water when immersed in it. The paraffin is peeled off and its mass was found to be 9 g. If the specific gravity of soil solids and paraffin are 2.65 and 0.9 respectively, the voids ratio of soil is nearly

A sample of dry soil is coated with a thin layer of paraffin and has a mass of 460 g. It displaced 300 cc of water when immersed in it. The paraffin is peeled off and its mass was found to be 9 g. If the specific gravity of soil solids and paraffin are 2.65 and 0.9 respectively, the voids ratio of soil is nearly

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Weight-volume Relationships And Plasticity

Section: Chapter Questions

Problem 3.1P

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A sample of clay was coated with paraffin wax and its mass, including the mass of wax, was found to be 697.5g. The sample was immersed in water and the volume of the water displaced was found to be 355 mL. The mass of the sample without the wax was 690g and the water content of the representative specimen was 18%. If specific gravity of soil solids and the wax is 2.7 and 0.89 respectively, solve for the degree of saturation.
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An irregular lump of saturated clay with a mass of 605.2 g was coated with paraffin wax. The total mass of the coated lump (in air) was 614.2 g. The volume of the coated lump was found to be 311 ml by displacement in water. After carefully removing the paraffin wax, the lump of clay was over-dried to a dry mass of 479.2 g. The specific gravity of the hardened wax is 0.90. Determine the water content, specific gravity, dry unit weight and void ratio.
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SITUATION 3: A 100 cc proctor mold was used to collect a wet soil sample. Its weight was found to be 200 gms. Its oven dried weight was recorded as 189 grams. G = 2.7 7. The moisture content is most likely: a. 0.058201 c. 0.069841 8. Its void ratio is: a. 0.771429 c. 0.514286 b. 0.064021 d. 0.046561 b. 0.471429 d. 0.428571
A soil sample with a grain specific gravity of 2.67 was filled in a 1000 mL container in the loosest possible state and the dry unit weight of the sample was found to be 14.75 N. It was then filled at the densest obtainable state and the weight was found to be 17.70 N. The void ratio of the soil in the natural state was 0.63. Determine the relative density in the natural state.
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