A clean quartzic sand (Gs = 2.69) has a dry unit weight of 14 kN/m³ at a moisture content of 7%. A student wishes to attain a 98% degree of saturation of this sand. How much water (in kN) should he add to a cubic meter of sand?

A clean quartzic sand (Gs = 2.69) has a dry unit weight of 14 kN/m³ at a moisture content of 7%. A student wishes to attain a 98% degree of saturation of this sand. How much water (in kN) should he add to a cubic meter of sand?

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.17P

See similar textbooks

Related questions

Q: Civil Engineering Which of the following statements is true for lightly over-consolidated clays in a…

A: option a. is incorrect because yield surface first expands, then shrinks and finally remains…

Q: An in-place density determination (in-place unit weight) is made for the sand in a borrow pit using…

Q: A SAMPLE OF SAND HAS A RELATIVE DENSITY OF 45% WITH A SOLID SPECIFIC GRAVITY OF Z.G7. THE MINIMUM…

Q: 4.15 The following results were obtained from a liquid limit test on a clay using the Casagrande cup…

A: Number of blows(N) 6 12 20 28 32 Water Content (%) 52.5 47.1 43.2 38.6 37.0

Q: A moist sand sample has a volume of 464 cm³ in natural state and a weight of 8.5 N. The dry weight…

Q: Question attached

A: GIVEN DATA:- K COEFFICIENT OF PERMEABILITY=0.012CM/SEC e=void ratio=0.57 we have to find k when…

Q: The difference between maximum void ratio and minimum void ratio of a sand sample is 0.30, if the…

Q: A fine sand was tested in situ to give a coefficient of permeability of 3.7 x107 m/s. A sample of…

A: Step 1:Step 2: Step 3: Step 4:

Q: The total density of sand in an embankment was found to be 1900kg/m^3 and the field water content…

Q: Pampanga sand with G, = 2.51 is mixed 26% by weight of water and compacted to produce a cylindrical…

Q: The natural water content and in-situ unit weight of a sample of sand above water table are 14% and…

A: Given data : Void ratio in densest state emin=0.48 Void ratio in loosest state emax=0.80 Water…

Q: A sample of dry sand is subjected to a triaxial test. The angle of internal friction is 36°. If the…

A: A dry sand sample,Angle of internal friction= 30°Cell pressure= σc= σ3= 180kN/m²To Find:- deviator…

Q: 3) A SAMPLE OF SAND HAS A RELATIVE DENSITY OF 40% N/A SOLID SPECIFIC GRAVITY OF 2.65 THE MINIMUM…

A: The given data is shown below:

Q: A sample of sand has the following properties: total mass M = 160 g; total volume V, =80 cm³; water…

Q: The wet density of a sample of sand found at a site is 1.85 Mg/cubic meter with a water content of…

Q: Q3) A normally consolidated clay has the following values: Estimate the magnitude of k of the clay…

A: It is the ability of the soil to allow water to pass through the void space of the soil. The clay…

Q: A SAMPLE OF DRY SAND HAVING UNIT WEIGHT OF 16.50kN/m3 AND A SPECIFIC GRAVITY OF 2.70 IS PLACED IN…

A: step 1-

Q: A clay sample of thickness 50 mm undergoes 50% consolidation in 15 minutes when drainage is allowed…

Q: The difference between maximum void ratio and minimum void ratio of a sand sample is 0.30, if the…

Q: c) Determine the hydraulic conductivity of the sand in the field condition if the hydraulic…

A: Void ratio is defined as the ratio of the volume of voids to the volume of solids. The void ratio…

Concept explainers

Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.

Question

100%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Field Applications of Hydraulic Conductivity

Learn more about

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

X1
A clean quartzic sand (Gs = 2.69) has a dry unit weight of 14 kN/m³ at a moisture content of 7%. A student wishes to attain a 98% degree of saturation of this sand. How much water (in kN) should he add to a cubic meter of sand?
The in situ dry density of a sand is 1.68 Mg/m3. The maximum and minimum dry densities, determined by standard laboratory tests, are 1.84 Mg/m3 and 1.47 Mg/m3, respectively. Determine the relative density of the sand. The particle specific gravity of the sand is 2.65. (Density of water 1 Mg/m3)
A certain saturated sand (S = 100%) has a moisture content of 27.9% and a specific gravity of solids of 2.61. It also has a maximum index void ratio of 0.90 and a minimum index void ratio of 0.33. Compute its relative density and classify its consistency. (Table on the right) Solution: Given the values of mmoisture content, specific gravity and degree of saturation, the void ratio can be estiamted as: e = Thus the relative density is found to be Dr = • According to the table, the soil is classified as %; soil. TABLE 3.3 CONSISTENCY OF COARSE-GRAINED SOILS AT VARIOUS RELATIVE DENSITIES (data from Lambe and Whitman, 1969) Relative Density, D,(%) 0-15 15-35 35-65 65-85 85-100 Classification Very loose Loose Medium denseª Dense Very dense "Lambe and Whitman used the term "medium," but "medium dense" is better because "medium" usually refers to the particle size distribution.
i need the answer quickly
A sample of dry sand having a unit weight of 16.00 kN/m³ and a specific gravity of 2.65 is placed in the rain. During the rain the volume of the sample remains constant but the degree of saturation increases to 45%. I. What is the water content after being in the rain, in percentage? What would be the mass of water, in kg, added to the soil due to exposure to rain (assume unit volume)?
PROBLEM No. 4 A sample of dry sand having a unit weight of 17.50 kN/m³ and a specific gravity of 2.69 is placed in the rain. During the rain, the volume of the sample remains constant but the degree of saturation increases to 45%. Determine the following: The void ratio of the sample in percent. b. The unit weight of the sample after being in the rain. The water content of the sample after being in the rain. a. С.
A sample of sand in its natural state has a relative density of 65 percent. The dry unit weights of the sample at its densest and loosest states are respectively 114.5 and 89.1 lb/ft3. Assuming the specific gravity of the solids as 2.64, determine (i) its dry unit weight, (ii) wet unit weight when fully saturated, and (iii) submerged unit weight.
A sample of sand has a relative density of 40% with a specific gravity of solids of 2.65. The minimum void ratio is 0.50 and the maximum void ratio is 0.95. What is the unit weight (in units of pcf) of this sand in the saturated condition?
A sample of sand has the following properties:Moist mass = 625.2 gDry mass = 589.9 gAbsorption = 1.6, Determine (a) total moisture content and (b) free moisture content.
I need an answer. Asap ty subject: Soil mechanics (geotechnical engineering)
1. A wet sand sample has a volume of 4.64 x 10⁻⁴ and weighs 8N. After oven drying, the weight reduces to 7.5N. Calculate the water content, void ratio and degree of saturation.(use Gs = 2.7) 2. A contractor has compacted the base course for a new road and found that the mean value of the test sample shows, w = 14.6%, Gs =2.81, and γ= 18.2 KN/m³. The specification require thate ≤0.8. has the contractor complied with the specifications? 3. The moist unit weight of soil is 16.5 KN/m³. Given that the w=15% and Gs = 2.70. Find:1) dry unit weight2) porosity3) degree of saturation