Principles of Foundation Engineering
9th Edition
ISBN: 9780357684832
Author: Das
Publisher: Cengage Learning US
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Chapter 2, Problem 2.6P
In AASHTO, which group are the following soil likely to fail into?
- a. A well-graded gravel with approximately 10% fines
- b. A well-graded sand with approximately 10% fines
- c. A uniform fine sand
- d. A high plastic clay
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In a soil specimen, 70% of particles are passing through 4.75 mm sieve and 40% of particles are passing 0.075 mm sieve. Its uniformity coefficient is 8 and coefficient of curvature is 2. As per USCS, this soil is classified as:
a.SP
b.GP
c.GW
d.SW
In AASHTO, which group are the following soil likely tofall into?
a. A well-graded gravel with approximately 10% finesb. A well-graded sand with approximately 10% finesc. A uniform fine sandd. A high plastic clay
A soil that contains only sizes between 0.1 and 1 mm can be classified as uniform sand
Select one:
O True
O False
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Principles of Foundation Engineering
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A sand is comprised of solid constituents that have a density (ps) of 2.68 Mg/m³. The void ratio, e, of the specimen is 0.58. Compute the following: (a) pa; (b) density when saturated, psat, and (c) relative density, Dr, using additional information that this soil has a maximum void ratio, emax, of 0.85 and a minimum void ratio, emin, of 0.43. (include your phase diagram(s)) (a) kg/m³ (b) kg/m³ (c)arrow_forward3.) A SAMPLE OF SAND HAS A RELATIVE DENSITY OF 40% N/A SOLID SPECIFIC GRAVITY OF 2.65 THE MINIMUM VOID RATIO 1 0.45 AND THE MAX VOID RATIO K 0.97. 9) DETERMINE THE VOID RATIO OF THE SAND AT RELATIVE DENSITY OF 40% b.) DENSITY OF SAND IN SATURATED CONDITION IN PCF C) IF THE SAND IS COMPACTED TO A RELATIVE DENSITY OF 65%, WHAT WILL BE THE DECREASE IN THICKNESS OF A 4FT, THICK LAYER IN FEETarrow_forwardIn AASHTO, which group are the following soils likely to fall into? a. A well graded gravel with approximately 10% fines. b. A well graded sand with approximately 10% fines. c. A uniform fine sand. d. A high plastic clay.arrow_forward
- 5. What are the requirements of core sand?arrow_forwardA certain saturated sand (S = 100%) has a moisture content of 25.1% and a specific gravity of solids of 2.68. It also has a maximum void ratio of 0.84 and a minimum void ratio of 0.33. Calculate its relative density and classify its consistencyarrow_forwardAs per the Indian Standard soil classification system, a sample of silty clay with liquid limit of 40% and plasticity index of 28% is classified as (A) CH (B) CI (C) CL (D) CL-MLarrow_forward
- A certain saturated sand (S = 100,) has a moisture content of 25.1 percent and a specificgravity of solids of 2.68. It also has a maximum index void ratio of 0.84 and a minimum indexvoid ratio of 0.33. Compute its relative density and classify its consistency.arrow_forwardA sand sample has a porosity of 30% and specific gravity of solids as 2.6. What is its degree of saturation at moisture content of 4.94%?arrow_forwardAs per the application of discrete fiber reinforced sand,how it is mixed uniformly in sand?arrow_forward
- PROBLEM No. 6 A loose, uncompacted sand fill 6 ft in depth has a relative density of 40%. Laboratory tests indicated that the minimum and maximum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65. a. What is the void ratio of the sand in natural state? b. What is the dry unit weight of the sand in Ib/ft? If the sand is compacted to a relative density of 75%, what is the decrease in thickness of the 6-ft fill? С. d. What is the final height in ft after compaction?arrow_forward1- A constant head permeameter is used for Coarse-grained soils (b) Silty soils (c) Clayey soils (d) Organic soils 2-The effective stress controls the following properties of soils: (a) Shear strength (b) Compressibility Permeability (d) All the above 3- The shear strength of plastic undrained clay depends upon (a) Internal friction Cohesion (c) Both (a) and (b) (d) Neither (a) and (b) 4-The coefficient of compressibility is the ratio of (a) Change in void ratio to change in effective stress (b) Volumetric strain to change in effective stress. (c) Change in thickness to change in effective stress. (d) Stress to strain 5- With an increase in the liquid limit, compression index (a) Decreases () Increases (c) Remain constant (d) May increase or decreasearrow_forwardA clay is found to have a liquid limit of 75%, a plastic limit of 45% and the shrinkage limit of 25%. If the sample of this soil has a volume of 30cm3 at the liquid limit and a volume at the shrinkage 16.7cm3 at the shrinkage limit. Determine the following: a) Mass of soil at shrinkage limit. [ Select ] b) Shrinkage Ratio. [ Select ] c) Specific gravity of soil solids. [ Select ] > >arrow_forward
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