Principles of Foundation Engineering, SI Edition
8th Edition
ISBN: 9781305446298
Author: Braja M. Das
Publisher: Cengage Learning US
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Chapter 2, Problem 2.5P
To determine
Calculate the dry unit weight in the loosest state.
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2.
The moist weight of 5.56 × 10-3 m³ of a soil is 120.3 × 10-³ kN. The moisture content and the specific gravity of the soil solids are determined in the laboratory to be 10 % and 2.6, respectively. Calculate the following:
a. Moist unit weight.
(Enter your answer to three significant figures.)
|kN/m³
b. Dry unit weight.
(Enter your answer to three significant figures.)
|kN/m³
c. Void ratio.
(Enter your answer to three significant figures.)
e =
d. Porosity.
(Enter your answer to three significant figures.)
n =
e. Degree of saturation.
(Enter your answer to three significant figures.)
S =
|%
f. Volume occupied by water.
(Enter your answer to three significant figures.)
Vu =
dm³
For a granular soil given Y=116.64lb/ft*3, Dy=82%, w=8%, and Gs=2.65. for this soil, if emin =0.44 what would be emax? what would be the dry unit weight in the loosest state?
The porosity of a soil is 0.35. Given G, = 2.70.
Calculate:
a. Saturated unit weight.
(Enter your answer to three significant figures.)
Ysat
]kN/m³
b. Moisture content when moist unit weight = 17.5 kN/m³
(Enter your answer to three significant figures.)
w =
|%
4.
Chapter 2 Solutions
Principles of Foundation Engineering, SI Edition
Ch. 2 - Prob. 2.1PCh. 2 - Prob. 2.2PCh. 2 - Prob. 2.3PCh. 2 - Prob. 2.4PCh. 2 - Prob. 2.5PCh. 2 - Prob. 2.6PCh. 2 - Prob. 2.7PCh. 2 - Prob. 2.8PCh. 2 - Prob. 2.9PCh. 2 - Prob. 2.10P
Ch. 2 - Prob. 2.11PCh. 2 - Prob. 2.12PCh. 2 - Prob. 2.13PCh. 2 - Prob. 2.14PCh. 2 - Prob. 2.15PCh. 2 - For a normally consolidated soil, the following is...Ch. 2 - Prob. 2.17PCh. 2 - Prob. 2.18PCh. 2 - Prob. 2.19PCh. 2 - Prob. 2.20PCh. 2 - Prob. 2.21PCh. 2 - Prob. 2.22PCh. 2 - Prob. 2.23PCh. 2 - Prob. 2.24PCh. 2 - Prob. 2.25PCh. 2 - Prob. 2.26PCh. 2 - Prob. 2.27P
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- Calculate the bulk density of a soil using the following values;a. Weight of fresh clod= 35 gb. Weight of paraffin clod= 38 gc. Weight of paraffin clod in water= 16 gd. Moisture content of the clod= 12% a. 1.67 b. 1.66 c. 1.65 d. 1.64arrow_forwardThe moist mass of 0.1 ft3 of soil is 12.5 lb. if the moisture content is 14% and the specific gravity of soil solids 2.71; a) What is the value of moist unit weight? b) What is the value of dry unit weight? c) What is the value of void ratio? d) What is the value of porosity? e) What is the value of degree of saturation?arrow_forwardThe moist mass of 0.1 ft3 of soil is 12.5 lb. if the moisture content is 14% and the specific gravity of soil solids 2.71; a) What is the value of moist unit weight? b) What is the value of dry unit weight? c) What is the value of void ratio?arrow_forward
- Calculate the bulk density of a soil using the following values; a. Weight of fresh clod= 35 g b. Weight of paraffin clod= 38 g c. Weight of paraffin clod in water= 16 g d. Moisture content of the clod= 12%arrow_forwardThe porosity of a soil is 0.35. Given G₁ = 2.70. Calculate: a. Saturated unit weight. (Enter your answer to three significant figures.) Ysat kN/m³ b. Moisture content when moist unit weight = 17.5 kN/m³ (Enter your answer to three significant figures.) W %arrow_forwardThe moist unit weight of a soil is 17.79 kN/cu.m and the porosity is 0.416. If the specific gravity of the soil solids is 2.671, calculate the following a. Water content in percent. b.? c.?? d.?? e.? f.?? g.?? h.?arrow_forward
- A saturated soil has the following characteristics: initial volume = 19.65cm3, final volume = 13.5 cm3, mass of wet soil = 36g, and mass of dry soil = 25g. Determine the shrinkage limit of the soil. Round off your answer to two (2) decimal places.arrow_forwardA saturated 100 cm^3 clay sample has a natural water content of 30%. It is found that the shrinkage limit occurs when the water content is 19%. The specific gravity of the soil is 2.70. a. What is the initial mass of the soil in grams? b. What is the dry mass of the soil in grams? c. What is the final volume of the soil in cm^3 after drying? d. What is the volume of the sample in cm^3 when the water content is 15%?arrow_forwardProblem 14. The plastic limit and liquid limit of a soil are 36% and 54% respectively. The percentage volume change from the liquid limit to the dry state is 50% of the dry volume. Similarly, the percentage volume change from the plastic limit to the dry state is 29% of the dry volume. Determine the shrinkage limit. a. 9% b. 10% C. 11% d. 12%arrow_forward
- The moist unit weight of a soil is 17.79 kN/cu.m and the porosity is 0.416. If the specific gravity of the soil solids is 2.671, calculate the following: a. Dry unit weightin kN/cu.m. b. Void ratioarrow_forward11. The dry soil is mixed with water (17% by mass) and compacted. The volume of wet soil is 0.001 m³ and has a mass of 1.6 kg. If the specific gravity of the soil solids is 2.70. a. what is the dry unit weight of the soil? b. what is the void ratio? c. what is the degree of saturation?arrow_forwardThe moist unit weights and degrees of saturation of a soil are given in the following table: Unit Weight (pcf) 119.04 123.86 S (%) 65 85 Determine the specific gravity of the soil solids. Determine the porosity of the soil in percent. Determine the void ratio of the soil in percent. Please answer this asap. For upvote. Thank you very mucharrow_forward
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