EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
9th Edition
ISBN: 8220103611718
Author: SOBHAN
Publisher: CENGAGE L
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Question
Chapter 3, Problem 3.1CTP
(a)
To determine
Calculate the percent decrease in the total volume of the soil due to compaction.
(b)
To determine
Calculate the percent increase in the field dry unit weight.
(c)
To determine
Calculate the percent change in degree of saturation.
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It is known that the natural soil at a construction site has a void ratio of 0.92. At the end of compaction,
the in-place void ratio was found to be 0.65. If the moisture content remains unchanged, then determine:
2
a) Percent decrease in the total volume of the soil due to compaction, b) Percent increase in the field unit
weight, c) Percent change in the degree of saturation.
For a given soil, prove that:
1 + w,
3
sat
Ysat = n
sat
3. A clay soil is found to have a liquid limit of 75%, a plastic
limit of 45% and a shrinkage limit of 25%. If a sample of
this soil has a total volume of 30 cm' at the liquid limit and
a volume of 16.7 cm' at the shrinkage limit, determine the
following:
a. Mass of soil at the shrinkage limit
b. Shrinkage ratio
c. Specific gravity of solids
Problem #1.
A soil sample in its natural state has a weight of 5.05 lb and a volume of
0.041 ft3. In an oven-dried state, the dry weight of the sample is 4.49 Ib.
The specific gravity of the solids is 2.68. Determine:
a. total unit weight
b. water content
C. void ratio
d. porosity
e. degree of saturation
Chapter 3 Solutions
EBK PRINCIPLES OF GEOTECHNICAL ENGINEER
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Prob. 3.4PCh. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - For a given sandy soil, emax = 0.75 and emin =...Ch. 3 - For a given sandy soil, the maximum and minimum...Ch. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.1CTPCh. 3 - Prob. 3.2CTPCh. 3 - Prob. 3.3CTP
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- Detailed solution please A clay has the following Atterberg limits: liquid limit = 60%, plastic limit = 40%, shrinkage limit = 25%. The clay shrinks from 15 cubic centimeters to 9.57 cubic centimeters when the moisture content is decreased from the liquid limit to the shrinkage limit. a. What is the specific gravity? b. What is the plasticity index? c. What is the liquidity index if the water content is 52%? d. From a hydrometer analysis to determine particle sizes, it is found that 45 percent of the sample consists of particles smaller that 0.002 mm. From this information indicate the activity classification of the clay.arrow_forwardA sample of soil compacted according to the standard Proct or test has a density of 2.06 g/cm³ at 100% compaction and at an optimum water content of 14%. What is the dry unit weight? What is the dry unit weight at zero air-voids? If the voids become filled with water what would be the saturated unit weight? Assume Gs = 2.67 Air Water Solids Ma + - + M starrow_forwardIt is known that the natural soil at a construction site has a void ratio of 0.92. At the end ofcompaction, the in-place void ratio was found to be 0.65. If the moisture content remainsunchanged, then determine:(a) Percent decrease in the total volume of the soil due to compaction.(b) Percent increase in the field unit weight.(c) Percent change in the degree of saturationarrow_forward
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- 1. A saturated 100 cm³ clay sample has a natural water content of 30%. It is found that the shrinkage limit occurs when the water content is 19%. If the sp. gr. of soil is 2.70.a. Compute the shrinkage ratio.b. Compute the volume of the sample.c. Compute the mass of dry soil samplearrow_forwardThe total volume of a soil soecimen is 80,000 mm³ and it weighs 150 grams. The dry weight of the specimen is 130 grams and the density of the soil solids is 2680 Kg/m³. Find the following: a) The water content. b) Void Ratio. c) Porosity. d) Degree of saturation. e) Saturated unit weight. f) Dry unit weight.arrow_forward2.6a = 2.69 1a% = 19%arrow_forward
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