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3. A sand is densified by compaction at a construction site so that the void ratio changes from 0.80 to 0.50. If the specific gravity of solids is 2.70, what is the increase in the dry unit weight of the sand (in kN/m³ and pcf)?

3. A sand is densified by compaction at a construction site so that the void ratio changes from 0.80 to 0.50. If the specific gravity of solids is 2.70, what is the increase in the dry unit weight of the sand (in kN/m³ and pcf)?

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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LAB 3. THANK YOU GEOTECHNICAL LABORATORY
1. A large soil sample obtained from a borrow pit has a wet mass of 26.50kg. the in - place volume occupied by the sample is 0.013m³. A small portion of the sample is used to determine the water content; the wet mass is 135g, and after drying in an oven, the mass is 117g. a. Determine the soil's water content. b. Determine the soil wet and dry density for conditions at the borrow pit. 2. A volume of undisturbed soil, 0.015m³, obtained from a construction site has a wet mass of 31kg and a dry mass of 27.5kg. Gs of soil solids is 2.71. Determine the void ratio, water content, and degree of saturation for the in – place condition. 3. A sand is densified by compaction at a construction site so that the void ratio changes from 0.80 to 0.50. If the specific gravity of solids is 2.70, what is the increase in the dry unit weight of the sand (in kN/m³ and pcf)?
Transcribed Image Text:1. A large soil sample obtained from a borrow pit has a wet mass of 26.50kg. the in - place volume occupied by the sample is 0.013m³. A small portion of the sample is used to determine the water content; the wet mass is 135g, and after drying in an oven, the mass is 117g. a. Determine the soil's water content. b. Determine the soil wet and dry density for conditions at the borrow pit. 2. A volume of undisturbed soil, 0.015m³, obtained from a construction site has a wet mass of 31kg and a dry mass of 27.5kg. Gs of soil solids is 2.71. Determine the void ratio, water content, and degree of saturation for the in – place condition. 3. A sand is densified by compaction at a construction site so that the void ratio changes from 0.80 to 0.50. If the specific gravity of solids is 2.70, what is the increase in the dry unit weight of the sand (in kN/m³ and pcf)?
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