A study of the possible relationship between traffic density and the concentrations of lead, cadmium and zinc in roadside soils, made use of the following sampling plan .  Samples of surface soil ( 0 to 10cm)were collected at perpendicular distances of 1,5,10,20 and 30m from the roadway. At each distance 10 samples were taken from different locations and mixed to form a single sample.  i) what type of sampling is this? ii) explain why this is an appropriate sampling plan

Q: The particle size characteristics of a soil are shown below. Find the percentages of gravel, sand,…

A: soil classification involves determining particle size distribution: 65.9% sand (0.425-0.075mm)and…

Q: From the table shows a summary of plastic limit test. Compute the plasticity limit. Plastic Limit…

A:

Q: A soil sample can be considered well graded if the value of Uniformity Coefficient (Cu) and…

A:

Q: 4. Which of the following gives the plastic limit of the soil? a. 16.5 % C. 17.1 % b. 10.5 % d. 18.5…

A: First, we have to calculate the water content of the following sample then we have taken the average…

Q: A large laboratory has four types of devices used to determine the pH of soil samples. The…

A: Consider the given data. (a) The spread of data shows that mean of the device D is larger than that…

Q: Select the correct answer(s) to the statement, "disturbed soil samples cannot be used for" Select…

A: 1 .  here i chooses  the best option possible.

Q: A laboratory proctor test was conducted and the following data were obtained for the 5 trial…

A: Proctor test results are given, we need to plot compaction curve and determine dry unit weight and…

Q: (b) The results of a dry sieve test on a sample are given in the Table 1. Prior to commencement of…

A: 1. Sieve size (mm) Mass retained (g) % Weight retained % Cumulative weight retained % Passing…

Q: 7. Municipal waste deposited on landfills is a highly geotechnical and diverse material, depending…

A: Landfill material is heterogenous type of material. Therefore properties of the material are…

Q: USDA textural classification; and Engineering Behavior Classification by (b) AASHTO, and (c) USCS.…

A:

Q: Why was the field sample test method developed? Name the three methods for  reducing field sample.

A: Field Sampling : ( DEFINITION )               Field sampling means the process of examining the…

Q: What type of sampler is used to sample granular soils for laboratory testing?

A: Ans: Thin walled or Shelby tube sampler

Q: It is required to design a collector road pavement in an urban area composed of 3 layers with…

A: Solution- The materials used in the pavement construction imply that this is a flexible pavement.…

Q: Following are the result from liquid and plastic limit tests for a soil Moisture Content (%) 365…

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Q: A deposit soil sample contains 50 grams of sand, 8.4 grams of gravel, 6.6 grams of air as void and…

A: As per honour code we have to answer first three parts of question . For rest part submit new…

Q: Two sediment samples (D, E) were analyzed for grain size using the sieving method. Table 5 shows the…

A: Given data,

Q: Describe about the Results of triaxial test on samples of a homogeneous soil.

A: The triaxial compression test is used to determine the shear strength of soil. It was developed by…

Q: .. You collected soil samples from site investigation of a dam project. The particle size…

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Q: Considering broad categories of soil types and commonly used soil sampling tools, please answer the…

A: Shelby Tube sampler is used to obtain the undisturbed  soil samples of Cohesive in nature. it is a…

Q: The following information is given about a soil sample: 7% retained on a No. 4 seive 15% pass a No.…

A: Percentage retained on No.4 sieve = 7% Percentage passing on No. 200 sieve = 15% Plasticity index =…

Q: A soil sample with the following composition by weight  45% Silt, around 15% Gravel and rest Sand,…

A: Sand: It is the most commonly utilised construction material. It is composed of rock fragments as…

Q: The results of a grading test on a sample of lateritic gravel intended for the sub-base course of a…

A: i)

Q: Question - 2: For the road network and traffic in question-1, design pavement structure for road…

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Q: Ex(1): Standard Proctor Tests was performed for a soil sample, the below data was gotten from the…

A: I have answered only the first 3 parts post other parts separately. thank you To find water conent…

Q: provide justified answer as

A: From figure :t90=52.6minandWe knowCv=Tv90d2t90Tv90=time factor at the 90% consoildation Tv90=0.848…

Q: Theoretical framework on the CBR test in soil mechanics. Include formulas used for calculation

A: The California Bearing Ratio (CBR) test is a penetration test used for evaluating the mechanical…

Q: (b) A soil sample was collected in Alor Gajah, Melaka which is denoted as sample NSR has been sieved…

A: Given: A soil sample was sieved and graph obtained as follows.  Required: To analyse the soil…

Q: TRIAL 1 2 4 MASS OF CONTAINER WITH WET SOIL (GRAMS) 33-43 32.16 34.80 35.47 14 MASS OF CONTAINER…

A: Given, To determine, a) THE MASS OF THE CONTAINER USED IN ALL TRIALS.b) THE MASS OF THE DRY SOIL IN…

Q: Q2/ Three samples were taken classified these samples regarding to AASTHO and find GI for each one (…

A: Sieve analysis carried on three soil sample gave following results Atterberg limits are also shown…

Q: i the table shows a summary liquid limit and plastic limit Compute the liquidity index. id Limit…

A: The given data is shown below:

Q: Knowing that the work you are going to work on has indicated a minimum degree of compaction of 90%,…

A: Given,  Mass of the flask + sand + cone before the test = 7,090 gMass of the bottle + sand + cone…

Q: Using the given data, design a road pavement for a 4-lane highway based on ATJ 5/85 (2013).…

A: Design of Road Pavement : A road pavement or a highway pavement is a structure which consists of…

Q: nree samples, denoted by Soil A, Soil B, and Soil C, were collected from three locations. The esults…

A:

Q: Question 2 (75-word limit; separate from technical memo): Provide a discussion on the position and…

A: Given data: Position of particle size distribution curve: Shape of particle size distribution curve:

Q: You are given three soil samples. Soil sample 1 is silty sand. Soil sample 2 is clay. Soil sample 3…

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Q: 1. The results of a grading test on a sample of lateritic gravel intended for the sub-base course of…

A: As per our guidelines we are supposed to answer only first question ,kindly post the other question…

Q: 3.A. What type of laboratory test can be used to determine soil permeability B in Table 1) Tabel 1…

A:

Q: Which of the following is part of the report writing of the soil investigation? Select the correct…

A: Explanation :  Soil investigation is one of the primary tasks done at the construction site. Soil…

Q: A sample of soil is extracted from a depth of 5 meters at a site and taken to the lab for testing.…

A: Atterberg limit is a basic measure of the water content of fine-grained soil. It helps in…

Q: 5. A geotechnical engineering laboratory exercise was conducted to determine the suitability of a…

A: The solution for Question 5a is as follows. Given Data: The diameter of the standpipe is d=1 mm. The…

Q: Stream competency is Measuring the amount of eroded material carried by stream Measuring the slope…

A: In irrigation engineering and hydrology the word stream competency is to be define and have to…

Soil engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.