Why do we use the dry unit weight as a measure of how compacted a soil is? For a given compactive effort, describe how the dry unit weight of the compacted soil is affected by the as-compacted moisture content.

Q: If a soil has a specific gravity of 2.71 and a water content of 0.17. What is the dry density on the…

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Q: A soil deposit has a void ratio of 0.9. Its void ratio is reduced to 0.6 by compaction. Determine…

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Q: WHAT IS THE POROSITY OF THE SOIL IF THE TOTAL VOLUME IS 0.3m3 AND VOLUME OF VOIDS IS 0.15m3? * Your…

A: Question is based on the properties of soil . Total volume and volume of voids are given in the…

Q: A saturated sand sample has a dry unit weight of 18 kN/m3 and a specific gravity of 2.65. If yw =…

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Q: Three factors which affect the degree of compaction are _______ , ________ , and soil type.

A: Compaction: The reduction in the volume of soil by applying external forces in order to remove the…

Q: Bulk Unit Weight (kN/m3) 13.0 14.0 17.0 16.0 16.0 Water Content (%) 16.0 18.5 21.0 23.5 26.0 1. Plot…

A: Use the basic soil mechanics relation between the dry unit weight of the soil with the bulk unit…

Q: Find the shrinkage of a soil that weights 1740 Ib/yd3 in its natural state and 2060 lb/yd³ after…

A: Given:- The weight of the soil in its natural state = 1740 lb/yd3  The weight of the soil after…

Q: The primary purpose for determining the moisture-density relationship of a soil is O For compaction…

A: Ans :- For Compaction Control  In Compaction test of Soil, Water is added and after compaction dry…

Q: For a given soil, the following are given in Table: Specific Gravity Gs. bulk unit weight (Y), and…

A: Dry unit weight is a measure of the number of solid particles per unit volume. Void ratio is defined…

Q: The ff are results of a field unit weight determination test Volume hole 0.0016 Mass of moist soil…

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Q: The results of a compaction test on samples of soil that are to be used for an embankment on a…

A: Given; Sample No. Moisture content  Bulk Density (Ib/ft3) 1 4.8 135.1 2 7.5 145.0 3 7.8…

Q: choose the correct answer Why, during the process of compaction of the soil, do we observe the…

A: Compaction: The compaction of soil is defined as the method of increasing the density of the soil by…

Q: Calculate the coefficient of gradation, Cc. ? Classify the soil by AASHTO and USCS system. (LL = 30,…

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Q: Why knowing a relative density in a specific soil is essential? Give a simple example.

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Q: Problem 2: From the following data, solve for the degree of compaction. Field density test data:…

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Q: 1) What is the purpose of soil compaction? Why is it useful? 2) Why does a compaction curve go up…

A: Note- Hi! Thank you for the question, As per the honor code, we are allowed to answer three…

Q: Why it is important to know the plasticity index of soil.

A: The difference between the numerical value of the liquid limit and the numerical value of the…

Q: A given soil sample is taken from the field by Bubba Lesh for compaction testing. Before compaction,…

A: solutioncompaction is defined as removal of air from the soil present in the voids compaction is…

Q: A compacted soil weighs 131.1 pcf with recorded moisture content of 15%. What is the (a) saturated…

A: Using relation between dry unit weight and total unit weight the value of former can be calculated.…

Q: Using Unified Soil Classification System, determine the type of soil, the coefficient of gradation…

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Q: 2. The sieve analysis data for a granular soil are given below. % passing 19 mm sieve =100 % passing…

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Q: Laboratory compaction test results and fielddetermined in-place density (unit weight) results are…

A: The result from the laboratory compaction test and in place field density tests are represented in…

Q: 1. What are the properties of the soil being improved after compacted. 2. What is the best…

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Q: An unsaturated soil sample with the dimensions of 0.1 m x 0.1 m x 0.1 m has a weight = 0.02 kN and…

A: The value given in the question are as follows: Side of soil sample cube(a)=0.1 m Weight of soil…

Q: sample saturated soil has a water content of 40%and a void ratio of 1.30  calculate density, and…

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Q: Calculate the bulk density of a soil using the following values; a. Weight of fresh clod= 35 g b.…

A: To determine the bulk density of soil.   The bulk density of soil γt is expressed as: γt=Weight if…

Q: The specific gravity of soil is 2.70 and void ratio is 0.667, what will be the value of dry density?

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Q: Given the compactions curve for a soil sample shown below. Answer the following questions: What is…

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Q: 2. .. ;. The sieve analysis data for a granular soil are given below. % passing 19 mm sieve =100 %…

A: To Determine percentages of gravels, sands and fines within this soil, based on the Unified Soil…

Q: If a granular soil is compacted to a moist unit weight of 20.45kN/cu.m at a moisture content of 18%,…

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Q: . it is the weight of soil per unit volume or sometimes called the moist unit weight, what it is? .…

A: 9. Specific weight(SW): SW also known as the unit weight this is the weight of soil per unit volume.…

Q: Q1. Draw phase diagram of soil and what is formula of water content?

A: Asked: To draw the phase diagram of soil and give the formula for water content.   The phase diagram…

Q: Question 3 Soil Compaction a) What are the factors that influence compaction of soil?

A: The process of increasing the soil's dry density by lowering air voids or air content in the soil is…

Q: 5. If one cubic yard of soil has a void ratio of 0.65. You disturb the soil and replace the same…

A: Void ratio is the ratio of volume of voids to the volume of solids.Volume of voids is the difference…

Q: a) Plot the grain size curve b) Calculate the coefficient of uniformity and the coefficient of…

A: For the given data, the particle size distribution curve is plotted below: a.

Q: Why is it essential to measure the porosity and permeability of the soil?

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Q: In the remolded state, how does the consistency of a clay soil varies in proportion to the water…

A: In remolded state, the consistency of clay soil varies in proportion to water content as follows:

Q: y engineering laboratory  test CBR (California Bearing Ratio) 1- How can we get a relative…

A: Ans-1) Relative compaction- It is defined as the ratio of the density of soil at the site to the…

Q: From a compaction test, if you are given. Water content (%) = 13.2 %3D Bulk unit weight (kN/m3) =…

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Q: Explain how dry unit weight is related to relative compaction, and how it is determined.

A: Answer:- Dry unit weight:- It is a measure of the amount of solid particles per unit volume. or It…

Q: For a given soil, show that Ysat Ya + nYw

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Q: 4. The following are given for a natural soil deposit: Moist unit weight, = 17.8 kN/m3 Moisture…

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Q: Find the shrinkage of a soil that weights 1700 Ib/yd3 in its natural state and 1940 lb/yd³ after…

A: Bulk density of soil, γb=1700 lb/yd3 Compacted density (maximum density), γmax=1940 lb/yd3

Q: The compaction of a soil obtained from a standard compaction test is shown in the attached figure.…

A: Given:

Q: How the grain-size distribution of fine-grained soil is determined ?

A: Sizes are expressed in terms of grain size distributions since a given soil will frequently include…

Q: How does the dry unit weight, differ from the unit weight ? Why is the Proctor method of assessing…

A: The dry unit weight (γd ) : it's the unit weight of the soil once all the soil voids are utterly…

Q: no soil loss during transportation and compaction), what is the thickness of the compacted soil and…

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Q: Calculate the water content of a soil with zero air voids and void ratio equal to 0.5. (Take G=2.7)

A: Given: Void ratio, e = 0.5 Specific gravity, G = 2.7 Degree of saturation, S = 1 (zero air voids…

Q: The results of a standard compaction test for a soil having a value of (Gs = 2. 5) are shown in the…

A: Water Content (%) 6.2 8.1 9.8 11.5 12.3 13.2 Unit Weight (KN/m3) 16.9 18.7 19.5 20.5 20.4 20.1…

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.